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POPULATION INVERSION

  • Population inversion
  • When a system has more excited-state members than ground-state

    In physics, specifically statistical mechanics, a population inversion occurs when a system (such as a group of atoms or molecules) exists in a state in

    Population inversion

    Population_inversion

  • Chromosomal inversion
  • Chromosome rearrangement in which a segment of a chromosome is reversed

    An inversion is a chromosome rearrangement in which a segment of a chromosome becomes inverted within its original position. An inversion occurs when a

    Chromosomal inversion

    Chromosomal inversion

    Chromosomal_inversion

  • Laser
  • Device that emits light via optical amplification

    of a population inversion. In 1955, Prokhorov and Basov suggested optical pumping of a multi-level system as a method for obtaining the population inversion

    Laser

    Laser

    Laser

  • Inversion
  • Topics referred to by the same term

    Look up Inversion or inversion in Wiktionary, the free dictionary. Inversion or inversions may refer to: Inversion (artwork), a 2005 temporary sculpture

    Inversion

    Inversion

  • Active laser medium
  • Source of optical gain in a laser

    laser, the active gain medium must be changed into a state in which population inversion occurs. The preparation of this state requires an external energy

    Active laser medium

    Active laser medium

    Active_laser_medium

  • Carbon-dioxide laser
  • Form of gas laser

    specific proportions vary according to the particular laser. The population inversion in the laser is achieved by the following sequence: electron impact

    Carbon-dioxide laser

    Carbon-dioxide laser

    Carbon-dioxide_laser

  • Helium–neon laser
  • Type of gas laser

    other neon transitions were investigated to identify ones in which a population inversion could be achieved. The 633 nm line was found to have the highest

    Helium–neon laser

    Helium–neon laser

    Helium–neon_laser

  • Stimulated emission
  • Release of a photon triggered by another

    considered "cloned biphotons". These photons are not entangled. When a population inversion ( Δ N > 0 {\displaystyle \Delta N>0} ) is present, therefore, optical

    Stimulated emission

    Stimulated emission

    Stimulated_emission

  • Optical amplifier
  • Device that amplifies an optical signal

    1959, titled "Light Amplifiers Employing Collisions to Produce Population Inversions" (subsequently amended as a continuation in part and finally issued

    Optical amplifier

    Optical amplifier

    Optical_amplifier

  • Dopant
  • Substance added to material to alter its properties

    the electrons of the dopant atoms that a population inversion can be produced, and this population inversion is essential for the stimulated emission

    Dopant

    Dopant

  • Ruby laser
  • Solid-state laser

    pumped with very high energy, usually from a flashtube, to achieve a population inversion. The rod is often placed between two mirrors, forming an optical

    Ruby laser

    Ruby laser

    Ruby_laser

  • Signed zero
  • Differentiating positive and negative zero

    one sometimes uses negative temperatures to describe systems with population inversion, which can be considered to have a temperature greater than positive

    Signed zero

    Signed_zero

  • Astrophysical maser
  • Natural source of microwave radiation emission

    respectively.[citation needed] The simple existence of a pumped population inversion is not sufficient for the observation of a maser. For example, there

    Astrophysical maser

    Astrophysical maser

    Astrophysical_maser

  • Sound amplification by stimulated emission of radiation
  • Device that emites acoustic radiation

    necessary condition for the generation of a laser radiation is the population inversion, which can be achieved either by exciting atoms and inducing percussion

    Sound amplification by stimulated emission of radiation

    Sound amplification by stimulated emission of radiation

    Sound_amplification_by_stimulated_emission_of_radiation

  • Insensitive nuclei enhanced by polarization transfer
  • Signal enhancement method

    chemical shifts to undergo population inversion in the SPI step without its undesirable selectivity. Selective Population Inversion 180°S — τ — 90°I (Y), 90°S

    Insensitive nuclei enhanced by polarization transfer

    Insensitive_nuclei_enhanced_by_polarization_transfer

  • Negative temperature
  • Physical systems hotter than any other

    positive-temperature system. A standard example of such a system is population inversion in laser physics. Thermodynamic systems with unbounded phase space

    Negative temperature

    Negative temperature

    Negative_temperature

  • Quantum-cascade laser
  • Optical instrument

    ) then n 3 > n 2 {\displaystyle n_{3}>n_{2}} and a population inversion will exist. The population ratio is defined as n 3 n 2 = τ 32 τ 21 = W 21 W 32

    Quantum-cascade laser

    Quantum-cascade_laser

  • Gas dynamic laser
  • Laser based on differences in relaxation velocities of molecular vibrational states

    vibrational state relaxes faster than a higher vibrational state, and so a population inversion is achieved in a particular time. It was invented by Edward Gerry

    Gas dynamic laser

    Gas_dynamic_laser

  • Nd:YAG laser
  • Crystal used as a lasing medium for solid-state lasers

    optical switch is inserted in the laser cavity waiting for a maximum population inversion in the neodymium ions before it opens. Then the light wave can run

    Nd:YAG laser

    Nd:YAG laser

    Nd:YAG_laser

  • Maser
  • Device for producing coherent EM waves in the sub-visible spectrum

    order to get some stimulated emission, it is necessary to create a population inversion of the atoms. This is done in a way that is very similar to the Stern–Gerlach

    Maser

    Maser

    Maser

  • Strontium vapor laser
  • faster for closely spaced levels. A population inversion therefore builds up in the 62S1/2 upper laser level. Inversion occurs between this and the 52P3/2

    Strontium vapor laser

    Strontium vapor laser

    Strontium_vapor_laser

  • Amplified spontaneous emission
  • Type of light that can be emitted by an optical amplifier

    ASE is produced when a laser gain medium is pumped to produce a population inversion. Feedback of the ASE by the laser's optical cavity may produce laser

    Amplified spontaneous emission

    Amplified_spontaneous_emission

  • Project Excalibur
  • Anti-missile system using an X-ray laser powered by a nuclear bomb

    rely on two physical phenomena to work, stimulated emission and population inversion. An atom is made of a nucleus and a number of electrons orbiting

    Project Excalibur

    Project Excalibur

    Project_Excalibur

  • Megamaser
  • Astrophysical maser, source of stimulated spectral line emission

    occur in space both require population inversion in order to operate, but the conditions under which population inversion occurs are very different in

    Megamaser

    Megamaser

    Megamaser

  • Laser pumping
  • Powering mechanism for lasers

    number of particles in the ground state or a less-excited state, population inversion is achieved. In this condition, the mechanism of stimulated emission

    Laser pumping

    Laser pumping

    Laser_pumping

  • Pockels effect
  • Linear change in the refractive index of optical media due to an electric field

    allows the gain medium to have a high population inversion. When the gain medium has the desired population inversion, the Pockels cell is switched "open"

    Pockels effect

    Pockels effect

    Pockels_effect

  • Q-switching
  • Laser pulsing technique

    medium (producing an optical resonator with low Q). This produces a population inversion, but laser operation cannot yet occur since there is no feedback

    Q-switching

    Q-switching

  • Blue laser
  • Laser which emits light with blue wavelengths

    Blue gas lasers are large and expensive instruments relying on population inversion in rare gas mixtures which use high currents and large cooling due

    Blue laser

    Blue laser

    Blue_laser

  • Lasing without inversion
  • Laser generation technique

    without inversion (LWI), or lasing without population inversion, is a technique used for laser beam generation without the requirement of population inversion

    Lasing without inversion

    Lasing_without_inversion

  • Shiva laser
  • Infrared laser

    in the glass, raising them to an excited state and leading to a population inversion which readies the lasing medium for amplification of a laser beam

    Shiva laser

    Shiva laser

    Shiva_laser

  • Excimer laser
  • Type of ultraviolet laser important in chip manufacturing and eye surgery

    picosecond) dissociates back into two unbound atoms. This forms a population inversion.[citation needed] The wavelength of an excimer laser depends on the

    Excimer laser

    Excimer laser

    Excimer_laser

  • Dye laser
  • Equipment using an organic dye to emit coherent light

    laser-pumping conditions, the molecules emit their energy before a population inversion can properly build up, so dyes require rather specialized means of

    Dye laser

    Dye laser

    Dye_laser

  • Quantum heat engine
  • Device converting heat flow into usable work at the nanoscale

    thermodynamics. A 3-level amplifier uses hot and cold reservoirs to maintain population inversion between two energy levels, amplifying light via stimulated emission

    Quantum heat engine

    Quantum_heat_engine

  • Solid-state laser
  • Laser which uses a solid gain medium

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Solid-state laser

    Solid-state laser

    Solid-state_laser

  • Nova (laser)
  • High-power laser at the Lawrence Livermore National Laboratory

    light produced by the lamps is captured in the glass, leading to a population inversion that allows for amplification via stimulated emission. This process

    Nova (laser)

    Nova (laser)

    Nova_(laser)

  • Intersystem crossing
  • Excited state dynamic

    Internal conversion (chemistry) Jablonski diagram Michael Kasha Population inversion Vibrational energy relaxation IUPAC, Compendium of Chemical Terminology

    Intersystem crossing

    Intersystem crossing

    Intersystem_crossing

  • Optical pumping
  • Use of light to raise electrons to higher energy states

    laser construction to pump the active laser medium so as to achieve population inversion. The technique was developed by the 1966 Nobel Prize winner Alfred

    Optical pumping

    Optical pumping

    Optical_pumping

  • Deep Space Optical Communications
  • Spacecraft communication system using lasers

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Deep Space Optical Communications

    Deep Space Optical Communications

    Deep_Space_Optical_Communications

  • Spin echo
  • Response of spin to electromagnetic radiation

    doi:10.1063/1.1670306. Malcolm H. Levitt; Ray Freeman (1979). "NMR population inversion using a composite pulse". Journal of Magnetic Resonance. 33 (2):

    Spin echo

    Spin echo

    Spin_echo

  • M squared
  • Measure of laser beam quality

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    M squared

    M_squared

  • Laser tag
  • Recreational shooting sport and game

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser tag

    Laser tag

    Laser_tag

  • Laser construction
  • Laser fundamental design principles

    ones). The gain medium is excited by the pump source to produce a population inversion, and it is in the gain medium where spontaneous and stimulated emission

    Laser construction

    Laser construction

    Laser_construction

  • Intermediate state
  • Topics referred to by the same term

    matter physics that deals with materials of an intermediate size Population inversion, in statistical mechanics Quantum superposition, a fundamental principle

    Intermediate state

    Intermediate_state

  • Sleep inversion
  • Reversal of sleeping tendencies

    Sleep inversion or sleep-wake inversion is a reversal of sleeping tendencies. Individuals experiencing sleep-wake inversion replace diurnal habits for

    Sleep inversion

    Sleep_inversion

  • List of laser types
  • frequencies may be possible with different gas mixtures Spin state population inversion in carbon dioxide molecules caused by supersonic adiabatic expansion

    List of laser types

    List of laser types

    List_of_laser_types

  • Bloch sphere
  • Representation of a quantum mechanical system

    used in laser theory, where w {\displaystyle w} is known as the population inversion. In this basis, the values u , v , w {\displaystyle u,v,w} are the

    Bloch sphere

    Bloch sphere

    Bloch_sphere

  • Photorejuvenation
  • Skin treatment

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Photorejuvenation

    Photorejuvenation

  • Gain (laser)
  • simple quasi two-level system, the gain can be expressed in terms of populations   N 1   {\displaystyle ~N_{1}~} and   N 2   {\displaystyle ~N_{2}~} of

    Gain (laser)

    Gain_(laser)

  • International Conference of Laser Applications
  • organic lasers Laser dye photostability Laser crystals Lasing without population inversion Electromagnetically induced transparency Optics communications Digital

    International Conference of Laser Applications

    International Conference of Laser Applications

    International_Conference_of_Laser_Applications

  • Solar radio emission
  • Radio waves produced by the Sun

    electrons into a plasma produces a population inversion analogous to that of a maser in the sense that a high-energy population was added to an equilibrium distribution

    Solar radio emission

    Solar_radio_emission

  • Distant Populations
  • 2021 studio album by Quicksand

    Single 'Inversion'". Blabbermouth.net. April 13, 2021. Retrieved September 25, 2021. Grow, Kory (June 23, 2021). "Quicksand Tease 'Distant Populations' With

    Distant Populations

    Distant_Populations

  • DVD
  • Digital optical disc data storage format

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    DVD

    DVD

    DVD

  • Ali Javan
  • Iranian American physicist (1926–2016)

    amplification without requiring a population inversion. The effect was the precursor of a class of effects known as Lasers Without Inversion, or the LWI effect. He

    Ali Javan

    Ali Javan

    Ali_Javan

  • List of laser articles
  • laser Polarization ripples Polyus (spacecraft) Ponderomotive energy Population inversion Potassium titanyl phosphate Pound–Drever–Hall technique Power scaling

    List of laser articles

    List_of_laser_articles

  • Laser hair removal
  • Process of hair removal by exposure to laser pulses

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser hair removal

    Laser hair removal

    Laser_hair_removal

  • Optical isolator
  • Optical component allowing the transmission of light in only one direction

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Optical isolator

    Optical isolator

    Optical_isolator

  • Compact disc
  • Digital optical disc data storage format

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Compact disc

    Compact disc

    Compact_disc

  • Gas laser
  • Laser in which electricity is discharged through gas

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Gas laser

    Gas laser

    Gas_laser

  • Tax inversion
  • Corporate relocation to a lower tax location

    A tax inversion or corporate tax inversion is a form of tax avoidance where a corporation restructures so that the current parent is replaced by a foreign

    Tax inversion

    Tax inversion

    Tax_inversion

  • Laser damage threshold
  • Limit at which an optical material will be damaged by a laser

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser damage threshold

    Laser_damage_threshold

  • Laser medicine
  • Application of laser in medical field

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser medicine

    Laser medicine

    Laser_medicine

  • Lasing threshold
  • Input power level at which a laser generates light primarily by stimulated emission

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Lasing threshold

    Lasing_threshold

  • Laser acronyms
  • optical parametric chirped pulse amplification [citation needed] PI – population inversion RABBIT or RABBITT – reconstruction of attosecond beating by interference

    Laser acronyms

    Laser_acronyms

  • Selective laser sintering
  • 3D printing technique

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Selective laser sintering

    Selective laser sintering

    Selective_laser_sintering

  • Laser cutting
  • Technology that uses a laser to cut materials

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser cutting

    Laser cutting

    Laser_cutting

  • Pulsed laser
  • Any laser not classified as continuous-wave

    light as short as a few femtoseconds. In a Q-switched laser, the population inversion is allowed to build up by introducing loss inside the resonator which

    Pulsed laser

    Pulsed_laser

  • Chemical laser
  • Laser that obtains energy from chemical reactions

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Chemical laser

    Chemical_laser

  • ISKRA lasers
  • Short pulse lasers

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    ISKRA lasers

    ISKRA_lasers

  • Harmonic generation
  • Nonlinear optical process

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Harmonic generation

    Harmonic generation

    Harmonic_generation

  • Spectroscopy
  • Study involving matter and electromagnetic radiation

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Spectroscopy

    Spectroscopy

    Spectroscopy

  • Quantum optics
  • Sub-field of quantum physics and optics

    (and laser) many years later was dependent on a method to produce a population inversion. The use of statistical mechanics is fundamental to the concepts

    Quantum optics

    Quantum_optics

  • Gaussian beam
  • Monochrome light beam whose amplitude envelope is a Gaussian function

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Gaussian beam

    Gaussian beam

    Gaussian_beam

  • Laser warning receiver
  • Military warning system

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser warning receiver

    Laser_warning_receiver

  • Russell Targ
  • American physicist, parapsychologist, and author

    Targ 1965. Willett, Colin S. (1974). Introduction To Gas Lasers: Population Inversion Mechanisms: With Emphasis on Selective Excitation Processes. International

    Russell Targ

    Russell Targ

    Russell_Targ

  • Doppler cooling
  • Laser cooling technique

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Doppler cooling

    Doppler cooling

    Doppler_cooling

  • Janus laser
  • Laser in California, US

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Janus laser

    Janus laser

    Janus_laser

  • Alan David White
  • American physicist

    Gordon, E.I. (1963). "Excitation mechanisms and current dependence of population inversion in HeNe lasers". Applied Physics Letters. 3 (11): 197–199. Bibcode:1963ApPhL

    Alan David White

    Alan_David_White

  • HiPER
  • Planned ICF powered by lasers

    high-energy state with a series of xenon flash tubes, causing a population inversion of the neodymium (Nd) atoms in the glass. This readies them for amplification

    HiPER

    HiPER

    HiPER

  • Blu-ray
  • Digital optical disc format

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Blu-ray

    Blu-ray

    Blu-ray

  • Copper vapor laser
  • Laser using vapors of copper as the lasing medium

    types I. Smilanski, L.A. Levin, and G. Erez (1980). "Kinetics of population inversion in a copper-vapor laser investigated by a modified hook method".

    Copper vapor laser

    Copper vapor laser

    Copper_vapor_laser

  • Low-level laser therapy
  • Treatment using irradiation with light of low power intensity

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Low-level laser therapy

    Low-level laser therapy

    Low-level_laser_therapy

  • Ultrashort pulse laser
  • Laser capable of delivering picosecond (10^-12 s) pulses of light

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Ultrashort pulse laser

    Ultrashort_pulse_laser

  • Injection seeder
  • Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Injection seeder

    Injection_seeder

  • Continuous wave
  • Electromagnetic wave that is not pulsed

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Continuous wave

    Continuous_wave

  • Heterojunction
  • Interface between two layers or regions of dissimilar semiconductors

    Herbert Kroemer, a prominent scientist in this field, suggested that population inversion could be greatly enhanced by heterostructures. By incorporating a

    Heterojunction

    Heterojunction

  • Gross–Pitaevskii equation
  • Description of the ground state of a quantum system

    Sebastiano; Ventra, Massimiliano Di (2014-01-24). "Quantum shock waves and population inversion in collisions of ultracold atomic clouds". Physical Review A. 89

    Gross–Pitaevskii equation

    Gross–Pitaevskii_equation

  • Vulcan laser
  • Infrared laser

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Vulcan laser

    Vulcan laser

    Vulcan_laser

  • Chirped pulse amplification
  • Technique for amplifying ultrashort laser pulses

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Chirped pulse amplification

    Chirped_pulse_amplification

  • Abraham–Lorentz force
  • Recoil force on accelerating charged particle

    to the anisotropic pressure, and electron cyclotron maser due to population inversion in the rings. An alternate mechanism for radiation reaction on a

    Abraham–Lorentz force

    Abraham–Lorentz_force

  • Laser lighting display
  • Kind of show made with laser light

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser lighting display

    Laser lighting display

    Laser_lighting_display

  • Laser diode
  • Semiconductor laser

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser diode

    Laser diode

    Laser_diode

  • Bubble laser
  • Laser made of a bubble

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Bubble laser

    Bubble_laser

  • Raman laser
  • Type of laser

    lasers are optically pumped. However, this pumping does not produce a population inversion as in conventional lasers. Rather, pump photons are absorbed and

    Raman laser

    Raman_laser

  • Laser Mégajoule
  • French fusion research project

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Laser Mégajoule

    Laser_Mégajoule

  • Fluorescence
  • Emission of light by a substance that has absorbed light

    is "pumped" by exposing it to an intense light source, creating a population inversion, meaning that more of its atoms become in an excited state (high

    Fluorescence

    Fluorescence

    Fluorescence

  • Beam expander
  • Optical devices treating collimated light

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Beam expander

    Beam_expander

  • Olga Kocharovskaya
  • American physicist

    Bruxelles. She completed a habilitation thesis titled "Lasers without population inversion" in 1996, awarded by the Commission of the Russian Federation. In

    Olga Kocharovskaya

    Olga_Kocharovskaya

  • Magneto-optical trap
  • Apparatus for trapping and cooling neutral atoms

    be laser cooled, however, by using repump lasers which re-excite the population back into the optical loop after it has decayed to a state outside of

    Magneto-optical trap

    Magneto-optical trap

    Magneto-optical_trap

  • Raman spectroscopy
  • Spectroscopic technique

    can be identified by characteristic phonon modes. Information on the population of a phonon mode is given by the ratio of the Stokes and anti-Stokes intensity

    Raman spectroscopy

    Raman spectroscopy

    Raman_spectroscopy

  • Confocal microscopy
  • Optical imaging technique

    Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse

    Confocal microscopy

    Confocal microscopy

    Confocal_microscopy

AI & ChatGPT searchs for online references containing POPULATION INVERSION

POPULATION INVERSION

AI search references containing POPULATION INVERSION

POPULATION INVERSION

  • Patrick Padraig Padraic
  • Boy/Male

    Irish

    Patrick Padraig Padraic

    From the Latin patricius “”nobly born.”” The patron saint of Ireland, it is hard to differentiate between fact and myth. What is probably true is that he was born in Britain around 373 AD and was brought to Ireland as a slave at the age of seven, possibly by Niall of the Nine Hostages (read the legend). Forced to guard sheep on the Slemish Mountains in Country Antrim for six years he had a vision urging him to convert his captors. He escaped to France where he trained as a priest before returning to Ireland where he banished the snakes (i.e. paganism) and converted the population to Christianity. Both Patrick and Padraig are very popular names in Ireland.

    Patrick Padraig Padraic

  • Imaran
  • Boy/Male

    Indian

    Imaran

    Strong, Prosperity population, A prophets name

    Imaran

  • Padraig Padraic
  • Boy/Male

    Irish

    Padraig Padraic

    From the Latin patricius “”nobly born.”” The patron saint of Ireland, it is hard to differentiate between fact and myth. What is probably true is that he was born in Britain around 373 AD and was brought to Ireland as a slave at the age of seven, possibly by Niall of the Nine Hostages (read the legend). Forced to guard sheep on the Slemish Mountains in Country Antrim for six years he had a vision urging him to convert his captors. He escaped to France where he trained as a priest before returning to Ireland where he banished the snakes (i.e. paganism) and converted the population to Christianity. Both Patrick and Padraig are very popular names in Ireland.

    Padraig Padraic

  • Imaran | عیمران
  • Boy/Male

    Muslim

    Imaran | عیمران

    Strong, Prosperity population, A prophets name

    Imaran | عیمران

  • Imran | عیمران
  • Boy/Male

    Muslim

    Imran | عیمران

    Strong, Prosperity population, A prophets name

    Imran | عیمران

  • House
  • Surname or Lastname

    English (southwestern)

    House

    English (southwestern) : from Middle English hous ‘house’ (Old English hūs). In the Middle Ages the majority of the population lived in cottages or huts rather than houses, and in most cases this name probably indicates someone who had some connection with the largest and most important building in a settlement, either a religious house or simply the local manor house. In some cases it may be a status name for a householder, someone who owned his own dwelling as opposed to being a tenant, but more often it is an occupational name for a servant who worked in such a house, in particular a steward who managed one.English : respelling of Howes.Translation of German Haus.

    House

  • Ijliyah
  • Girl/Female

    Arabic, Muslim

    Ijliyah

    Population

    Ijliyah

  • Imrana |
  • Girl/Female

    Muslim

    Imrana |

    Population, Socialism

    Imrana |

  • Ireland
  • Surname or Lastname

    English and Scottish

    Ireland

    English and Scottish : ethnic name for someone from Ireland, Old English Īraland. The country gets its name from the genitive case of Old English Īras ‘Irishmen’ + land ‘land’. The stem Īr- is taken from the Celtic name for Ireland, Èriu, earlier Everiu. The surname is especially common in Liverpool, England, which has a large Irish population.

    Ireland

  • Imrana
  • Girl/Female

    Indian

    Imrana

    Population, Socialism

    Imrana

  • Imrana
  • Girl/Female

    Arabic, Muslim

    Imrana

    Population; Socialism; Powerful; Prosperous

    Imrana

  • Imran
  • Boy/Male

    Indian

    Imran

    Strong, Prosperity population, A prophets name

    Imran

  • Norman
  • Surname or Lastname

    English, Irish (Ulster), Scottish, and Dutch

    Norman

    English, Irish (Ulster), Scottish, and Dutch : name applied either to a Scandinavian or to someone from Normandy in northern France. The Scandinavian adventurers of the Dark Ages called themselves norðmenn ‘men from the North’. Before 1066, Scandinavian settlers in England were already fairly readily absorbed, and Northman and Normann came to be used as bynames and later as personal names, even among the Saxon inhabitants. The term gained a new use from 1066 onwards, when England was settled by invaders from Normandy, who were likewise of Scandinavian origin but by now largely integrated with the native population and speaking a Romance language, retaining only their original Germanic name.French : regional name for someone from Normandy.Dutch : ethnic name for a Norwegian.Jewish (Ashkenazic) : variant of Nordman.Jewish : Americanized form of some like-sounding Ashkenazic name.Swedish : from norr ‘north’ + man ‘man’.Albert Andriessen Bradt, a settler in Rensselaerswijck on the upper Hudson River in NY, was originally from Norway and was known as de Norrman (‘the Norwegian’). The waterway south of Albany which powered his mills became known as the Normanskill (‘the Norman’s Waterway’), by which name it is still known today.

    Norman

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Online names & meanings

  • Vanaveer
  • Boy/Male

    Indian, Telugu

    Vanaveer

    Jungle Courageous

  • Hallums
  • Surname or Lastname

    English

    Hallums

    English : probably a habitational name from Hallams Farm in Wonersh, Surrey, Middle English Hullehammes ‘hill enclosures’, ‘enclosures (by the) hill’, or alternatively a variant of Hallum, with the addition of a genitive -s indicating ‘servant of’, ‘widow of’, etc.

  • Groce
  • Surname or Lastname

    English

    Groce

    English : variant spelling of Gross.Respelling of German Gross.

  • Shakshi
  • Girl/Female

    Gujarati, Hindu, Indian

    Shakshi

    Evidence; Witness

  • Blatchford
  • Surname or Lastname

    English (chiefly Devon)

    Blatchford

    English (chiefly Devon) : habitational name from Blatchford in Sourton, Devon, which is probably named with the Old English personal name Blæcca + Old English ford ‘ford’.

  • HELEEN
  • Female

    Dutch

    HELEEN

    ,the bright, or, the light.

  • Sujoy
  • Boy/Male

    Hindu, Indian

    Sujoy

    Happy; Winner

  • Santanu
  • Boy/Male

    Bengali, Hindu, Indian, Sanskrit

    Santanu

    Auspicious Form; Father of Bhisma

  • Suhith | ஸுஹீத
  • Boy/Male

    Tamil

    Suhith | ஸுஹீத

    Positive, Suitable

  • Darbhi
  • Boy/Male

    Indian, Sanskrit

    Darbhi

    Witj Sacrifical Grass; An Ascetic

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Other words and meanings similar to

POPULATION INVERSION

AI search in online dictionary sources & meanings containing POPULATION INVERSION

POPULATION INVERSION

  • Repopulation
  • n.

    The act of repeopling; act of furnishing with a population anew.

  • Malthusianism
  • n.

    The system of Malthusian doctrines relating to population.

  • Retrocopulation
  • n.

    Copulation from behind.

  • Criminology
  • n.

    A treatise on crime or the criminal population.

  • Sparseness
  • n.

    The quality or state of being sparse; as, sparseness of population.

  • Vapulation
  • n.

    The act of beating or whipping.

  • Sodomy
  • n.

    Carnal copulation in a manner against nature; buggery.

  • Population
  • n.

    The whole number of people, or inhabitants, in a country, or portion of a country; as, a population of ten millions.

  • Fractional
  • a.

    Relatively small; inconsiderable; insignificant; as, a fractional part of the population.

  • Tread
  • n.

    The act of copulation in birds.

  • Coition
  • n.

    A coming together; sexual intercourse; copulation.

  • Inhabitation
  • n.

    Population; inhabitants.

  • Rut
  • v. t.

    To cover in copulation.

  • Copulation
  • n.

    The coming together of male and female in the act of generation; sexual union; coition.

  • Leap
  • n.

    Copulation with, or coverture of, a female beast.

  • Modulation
  • n.

    The act of modulating, or the state of being modulated; as, the modulation of the voice.

  • Population
  • n.

    The act or process of populating; multiplication of inhabitants.

  • Copulation
  • n.

    The act of coupling or joining; union; conjunction.

  • Impeople
  • v. t.

    To people; to give a population to.

  • Depopulacy
  • n.

    Depopulation; destruction of population.