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Use of light to raise electrons to higher energy states
Optical pumping is a process in which light is used to raise (or "pump") electrons from a lower energy level in an atom or molecule to a higher one. It
Optical_pumping
Powering mechanism for lasers
can act as a laser or an optical amplifier. The pump power must be higher than the lasing threshold of the laser. The pump energy is usually provided
Laser_pumping
Device that emits light via optical amplification
suggested optical pumping of a multi-level system as a method for obtaining the population inversion, later a main method of laser pumping. Townes reports
Laser
Type of laser cooling
kinetic energy as they move to a potential maximum, at which point optical pumping moves them back to a lower energy state, thus lowering the total energy
Sisyphus_cooling
Spin polarization of atomic nuclei beyond thermal equilibrium
interaction studies, and neutron polarizing experiments. Spin exchange optical pumping (SEOP) is one of several hyperpolarization techniques discussed on
Hyperpolarization_(physics)
German-born French physicist (1902–1984)
and Nobel laureate in Physics. He is known for the development of optical pumping. Kastler was born in Guebwiller (Alsace, at the time part of the German
Alfred_Kastler
Solid-state laser
gain/amplification medium) is a synthetic ruby rod that is energized through optical pumping, typically by a xenon flashtube. Ruby has very broad and powerful absorption
Ruby_laser
Medical imaging technique
demonstrated in diluted mixtures. The process of optical pumping uses rubidium (Rb) contained in a glass optical cell. This cell is placed in an oven with two
Hyperpolarized_gas_MRI
Topics referred to by the same term
Look up pumping in Wiktionary, the free dictionary. Pumping may refer to: The operation of a pump, for moving a liquid from one location to another The
Pumping
Device that amplifies an optical signal
The pump light can be sent into the fiber in the same direction (forward pumping) or opposite direction of the signal (backwards pumping). An optical isolator
Optical_amplifier
American physicist (born 1939)
Emeritus. Walker, Thad G.; Happer, William (1997). "Spin-exchange optical pumping of noble-gas nuclei". Reviews of Modern Physics. 69 (2): 629–642. Bibcode:1997RvMP
William_Happer
Semiconductor laser
Another method of powering some diode lasers is the use of optical pumping. Optically pumped semiconductor lasers (OPSL) use a III-V semiconductor chip
Laser_diode
American physicist (1920–2005)
Fabry–Pérot optical resonators, as well as optical pumping, pumping by collisions in a gas discharge (as in helium–neon lasers), optical amplifiers, Q-switching
Gordon_Gould
Laser cooling technique
approximations of atoms, temperature below this limit can be achieved. Optical pumping between the sublevels that make up an atomic state introduces a new
Sub-Doppler_cooling
Type of magnetometer
diode lasers to polarize and monitor spin precession. Circularly polarized pumping light tuned to the D 1 {\displaystyle D_{1}} spectral resonance line polarizes
SERF
Technical applications of optics
devices include optical data recording, fiber optic telecommunications, laser printing (based on xerography), displays, and optical pumping of high-power
Photonics
Laser technique cooling atoms to temperatures lower than a magneto-optical trap
of optical pumping between these sublevels allow the cooling of atoms below the Doppler limit. The best explanation of the phenomenon of optical molasses
Optical_molasses
Device that measures magnetism
"Swarm Absolute Scalar and Vector Magnetometer Based on Helium 4 Optical Pumping". Procedia Chemistry. Proceedings of the Eurosensors XXIII conference
Magnetometer
Light-conducting fiber
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers are widely used
Optical_fiber
When a system has more excited-state members than ground-state
the pumping transition is greater than that of the laser transition. This means that, if the laser is optically pumped, the frequency of the pumping light
Population_inversion
Clock that monitors the resonant frequency of atoms
1949, Alfred Kastler and Jean Brossel developed a technique called optical pumping for electron energy level transitions in atoms using light. This technique
Atomic_clock
Set of techniques to measure and visualize aspects of the nervous system
Bason MG, James TM, Orucevic F, Kruger P (10 June 2021). "Modular optically-pumped magnetometer system". arXiv:2106.05877 [physics.atom-ph]. Crosson B
Neuroimaging
American telecommunications equipment company
184 km system. Optical cesium atomic clocks: Adtran's Oscilloquartz division has introduced atomic clocks that leverage optical pumping technology. The
Adtran
tunable metamaterials. Magnetostatic control for tunable metamaterials. Optical pumping for tunable metamaterials. Yttrium iron garnet (YIG) films allow for
Tunable_metamaterial
Method of sub-Doppler laser cooling of atoms
Chu's group likewise modeled sub-Doppler cooling as fundamentally an optical pumping scheme. As a result of their efforts, Phillips, Cohen-Tannoudji, and
Gray_molasses
Chemical element with atomic number 54 (Xe)
process of hyperpolarizing the xenon is called optical pumping (although the process is different from pumping a laser). Because a 129Xe nucleus has a spin
Xenon
long (1–3 meters) waveguide filled with gaseous organic molecules, optically pumped or via HV discharge. They are highly inefficient, often require helium
Far-infrared_laser
type of pumping, such as optical pumping. The lasing medium must be long enough for the radiation to persist and excite more of the same. In optical systems
Gravity_laser
Scientific law describing absorption of light
particular, this implies that the light should not cause optical saturation or optical pumping, since such effects will deplete the lower level and possibly
Beer–Lambert_law
Laser using an optical fiber as the active gain medium
modes. It should provide sufficient cladding to confine the core and optical pump section over a relatively short piece of the fiber. Tapered double-clad
Fiber_laser
Type of semiconductor laser diode
wavelengths are experimental and usually optically pumped. 1310 nm VCSELs are desirable as the dispersion of silica-based optical fiber is minimal in this wavelength
Vertical-cavity surface-emitting laser
Vertical-cavity_surface-emitting_laser
; Klar, Thomas A. (2018-09-19). "Power Balance and Temperature in Optically Pumped Spasers and Nanolasers". ACS Photonics. 5 (9): 3695–3703. Bibcode:2018ACSP
List_of_laser_types
Chemical element with atomic number 68 (Er)
crystals can be used as optical amplification media, where Er3+ ions are optically pumped at around 980 or 1480 nm and then radiate light at 1530 nm in stimulated
Erbium
Chemical element with atomic number 60 (Nd)
threshold and with excellent mechanical and temperature properties. For optical pumping of this material it is possible to use non-coherent flashlamp radiation
Neodymium
Chemical compound
hyperpolarized through interactions with an optically pumped caesium vapor in a process known as spin-exchange optical pumping (SEOP). SEOP can increase the nuclear
Caesium_hydride
Experimental area in semiconductors
245410. S2CID 51933139. "Valley polarization in MoS2 monolayers by optical pumping". Hualing Zeng, Junfeng Dai, Wang Yao, Di Xiao and Xiaodong Cui. Nature
Valleytronics
Artificial star image used by telescopes
atom before a two-level cycling transition can be established through optical pumping with circularly polarized light. Recoil from spontaneous emission,
Laser_guide_star
Quantum mechanical phenomenon
suitably adjusted time intervals. Atomic coherence Bloch sphere Laser pumping Optical pumping Rabi problem Vacuum Rabi oscillation Neutral particle oscillation
Rabi_cycle
Helium isotope with two protons and one neutron
be hyperpolarized using non-equilibrium means such as spin-exchange optical pumping. During this process, circularly polarized infrared laser light, tuned
Helium-3
Microchip manipulating light instead of electricity
A photonic integrated circuit (PIC) or integrated optical circuit is a microchip containing two or more photonic components that form a functioning circuit
Photonic_integrated_circuit
Proposed quantum computer implementation
states can be prepared in a specific qubit state using a process called optical pumping. In this process, a laser couples the ion to some excited states which
Trapped-ion_quantum_computer
Technology used to provide broadband to the end consumer via fiber
A passive optical network (PON) is a fiber-optic telecommunications network that uses only unpowered devices to carry signals, as opposed to electronic
Passive_optical_network
Type of quantum computer built out of Rydberg atoms
qubits are prepared in some initial state using optical pumping. Logic gates are performed using optical or microwave frequency fields and the measurements
Neutral_atom_quantum_computer
Parametric oscillator that oscillates at optical frequencies
optical parametric oscillator (OPO) is a parametric oscillator that oscillates at optical frequencies. It converts an input laser wave (called "pump")
Optical_parametric_oscillator
Criteria for a usable quantum computer
than the initialisation time. Alternate approaches (usually involving optical pumping) have been developed to reduce the initialisation time and improve
DiVincenzo's_criteria
Electrochemical processes involving photons and the emission or absorption of light
into other forms of energy. These processes apply to photochemistry, optically pumped lasers, sensitized solar cells, luminescence, and photochromism. Electron
Photoelectrochemical_process
Fluoropolymer which has the highest diffuse reflectance of any known material
shapes for the construction of optical components such as calibration targets, integrating spheres, and optical pump cavities for lasers. Spectralon's
Spectralon
Equipment using an organic dye to emit coherent light
this usually requires replacing other optical components in the laser as well, such as dielectric mirrors or pump lasers. Dye lasers were independently
Dye_laser
Anti-missile system using an X-ray laser powered by a nuclear bomb
first excited to even higher energy. This is accomplished through optical pumping, using the white light of a flash lamp to increase the electron energy
Project_Excalibur
Point defect in diamonds
and quadrupole interactions) also split the ms = ±1 energy levels. Optical pumping can coherently map of the spin states of the nitrogen nucleus to that
Nitrogen-vacancy_center
Medical imaging technique
equivalence. Hyperpolarized 129Xe is achieved through spin-exchange optical pumping, a technique developed by Grover et al. in 1978 and improved by Happer
Xenon_gas_MRI
Indian physicist
mainly concerned with the theory of effects found in experiments on optical pumping, e.g. double refraction in a gas due to spin alignment. Professor Series
S._Pancharatnam
Radiation. Using Gould's light amplification method (patented as "Optically Pumped Laser Amplifier"), Theodore Maiman made the first working laser on
History_of_the_Internet
Medical imaging technique
include increasing magnetic field strength and hyperpolarization via optical pumping or dynamic nuclear polarization. There are also a variety of signal
Magnetic_resonance_imaging
High-voltage capacitor used in photographic flashes
briefly power a flash lamp, used to illuminate a photographic subject or optically pump a laser rod. As flash tubes require very high current for a very short
Photoflash_capacitor
Physical phenomenon
state has been achieved by other means (e.g., hyperpolarization by optical pumping).[citation needed] The relaxation time, T 1 {\displaystyle T_{1}} (the
Spin–lattice_relaxation
1908. Darrieus wind turbine by Georges Jean Marie Darrieus in 1931. Optical pumping by Alfred Kastler in the early 1950s. The multiwire proportional chamber
List of French inventions and discoveries
List_of_French_inventions_and_discoveries
Physical equations of light emission in semiconductors
include the possibility to study resonance fluorescence resulting from optical pumping with coherent laser light. At this level, one is often interested to
Semiconductor luminescence equations
Semiconductor_luminescence_equations
Subatomic physics phenomenon
such as chemical reactions (known as chemical-induced DNP or CIDNP), optical pumping, and spin injection. A polarizing agent (PA)—either an endogenous or
Dynamic_nuclear_polarization
Quantum measurement phenomenon
Kitano, M. (2001). "Absorption-free optical control of spin systems: the quantum Zeno effect in optical pumping". Physical Review A. 65 (1) 013404.
Quantum_Zeno_effect
Laser which uses a solid gain medium
state lasing media are typically optically pumped, using either a flashlamp or arc lamp, or by laser diodes. Diode-pumped solid-state lasers tend to be much
Solid-state_laser
Laser light source
emission is based on the nonlinear optical principle. The photon of an incident laser pulse (pump) is, by a nonlinear optical crystal, divided into two lower-energy
Optical_parametric_amplifier
Acquisition of NMR spectra of chemicals
Examples include parahydrogen-induced polarization, spin-exchange optical pumping of noble gas atoms, dissolution dynamic nuclear polarization, and chemically-induced
Zero_field_NMR
Thin semiconductors
Xiao, D.; Cui, X. (2012). "Valley polarization in MoS2 monolayers by optical pumping". Nature Nanotechnology. 7 (8): 490–3. arXiv:1202.1592. Bibcode:2012NatNa
Transition metal dichalcogenide monolayers
Transition_metal_dichalcogenide_monolayers
Physics of many interacting particles
friction, dissipation, quantum decoherence, systems being pumped by external forces (optical pumping, etc.), and irreversible processes in general. All of
Statistical_mechanics
Particle and Nuclear Physics
apparatus for the measurement of spin and magnetic moment Laser-induced optical pumping Collinear laser spectroscopy Resonance ionization mass spectroscopy
Synchro-Cyclotron_(CERN)
Furthermore, lasers are used for state preparation and measurement: optical pumping initializes qubits into well-defined states, while state-dependent
Optical_manipulation_of_atoms
State of matter
yttrium-iron-garnet thin film was seen even at room temperature, with optical pumping. Excitons, electron–hole pairs, were predicted to condense at low temperature
Bose–Einstein_condensate
Cable assembly containing one or more optical fibers that are used to carry light
cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to
Fiber-optic_cable
Type of laser
A diode-pumped solid-state laser (DPSSL) is a solid-state laser made by pumping a solid gain medium, for example, a ruby or a neodymium-doped YAG crystal
Diode-pumped solid-state laser
Diode-pumped_solid-state_laser
Alloy
ISSN 0003-6951. Hermann, Claudine; Pearsall, Thomas P. (1981-03-15). "Optical pumping and the valence-band light-hole effective mass in GaxIn1−xAsyP1−y (y≃2
Indium_gallium_arsenide
Photons that excite electrons to a higher energy level in an atom
by means of the photovoltaic effect. Optically pumped lasers, devices that emit light through a process of optical amplification based on the stimulated
Photoexcitation
Type of laser
Raman lasers are optically pumped. However, this pumping does not produce a population inversion as in conventional lasers. Rather, pump photons are absorbed
Raman_laser
Colour between violet and cyan on the visible spectrum of light
lasers are also still commonly used for holography, DNA sequencing, optical pumping, among other scientific and medical applications. Blue is the colour
Blue
complexity of the experiments. Larmor precession Resonance fluorescence Optical pumping Kastler, Alfred (1974). "50 Jahre Hanle-Effekt: Rückblick und Vorblick"
Hanle_effect
Branch of physics
Nonlinear optics (NLO) is a branch of optics that studies the case when optical properties of matter depend on the intensity of the input light. Nonlinear
Nonlinear_optics
Occurrence in collective excitations
{\displaystyle \tau } = 10s. For an achievable T = 0.01K, a manageable optical pumping rate of 105/s should produce a condensate. More detailed calculations
Bose–Einstein condensation of quasiparticles
Bose–Einstein_condensation_of_quasiparticles
Semiconductor material
of AlGaInP diode lasers are in optical disc readers, laser pointers, and gas sensors, as well as for optical pumping, and machining. The toxicology of
Aluminium gallium indium phosphide
Aluminium_gallium_indium_phosphide
US 1960s-era study into nuclear weapons to create beams of plasma
1980s. These replaced the pusher plate material with metal rods; when optically pumped by the atomic bomb's X-rays, the rods would theoretically produce collimated
Casaba-Howitzer
Imaging molecules within living patients
include increasing magnetic field strength, and hyperpolarization via optical pumping, dynamic nuclear polarization or parahydrogen induced polarization
Molecular_imaging
power budget Optical pumping Optical recording Optical ring resonators Optical storage Optical table Optical tape Optical train Optical tweezers Optimax
List_of_laser_articles
Crystal used as a lasing medium for solid-state lasers
usefulness as a practical solid state laser source". Nd:YAG lasers are optically pumped using a flashtube or laser diodes. These are one of the most common
Nd:YAG_laser
temperature operation of an optically pumped polariton laser was demonstrated, promising the development of future electrically pumped polariton lasers for room
Polariton_laser
ionization scheme development: The first observed autoionizing states and optical pumping effects in the hot cavity environment". Spectrochimica Acta Part B:
CRIS_experiment
Chemical element with atomic number 70 (Yb)
Ytterbium lasers commonly radiate in the 1.03–1.12 μm band being optically pumped at wavelength 900 nm–1 μm, dependently on the host and application
Ytterbium
Type of semiconductor laser
to the external mirror would be 1 cm. Several workers demonstrated optically pumped VECSELs, and they continue to be developed for many applications including
Vertical-external-cavity surface-emitting-laser
Vertical-external-cavity_surface-emitting-laser
Device converting heat flow into usable work at the nanoscale
pump heat from a cold to a hot reservoir using power, in the same year. Wineland and Hänsch suggested laser-driven processes, termed optical pumping or
Quantum_heat_engine
Physical principle
The analysis below will discuss ETU in the context of an optically pumped [see optical pumping] solid-state laser. A solid-state laser [see also laser]
Energy_transfer_upconversion
Laser cooling technique
moves along z, it will be optically pumped to the state with the largest negative light shift. However, the optical pumping process takes some finite
Polarization_gradient_cooling
Semiconductor laser that uses quantum dots as the active laser medium
fluctuations and less relative intensity noise. Lasers exploiting optically pumped nanocrystal quantum dots as their active medium exhibit device performance
Quantum_dot_laser
common for all projects and is devoted to atomic polarisation via optical pumping with circularly polarised laser light. The singly-charged ion beam
VITO_experiment
Laser technology
the outgoing beam pass an optical filter. The quantum dots can be excited both electrically and optically. For optical pumping, a pulsed laser can be used
Quantum dot single-photon source
Quantum_dot_single-photon_source
Scientific instruments
Optical tweezers (originally called single-beam gradient force trap) are scientific instruments that use a highly focused laser beam to hold and move
Optical_tweezers
Polariton condensation
always observed out of equilibrium. All of the above studies used optical pumping to create the condensate. Electrical injection, which enables a polariton
Bose–Einstein condensation of polaritons
Bose–Einstein_condensation_of_polaritons
Non-linear optical imaging modality
Pump–probe microscopy is a non-linear optical imaging modality used in femtochemistry to study chemical reactions. It is a kind of ultrafast laser spectroscopy
Pump–probe_microscopy
Laser cooling technique
enough with respect to the pumping beam frequencies, the atom is very likely not to change its vibrational state during the pumping process. Thus it ends up
Raman_cooling
Local variation in the Earth's magnetic field
surveys except for boreholes and high-resolution gradiometer surveys. Optically pumped magnetometers, which use alkali gases (most commonly rubidium and caesium)
Magnetic_anomaly
Spintronics-related effect
a ferromagnet in order to perform spin pumping or with a semiconductor where it is possible to perform optical orientation. As for the direct effect,
Rashba–Edelstein_effect
Device for producing coherent EM waves in the sub-visible spectrum
developed a solid-state maser that operated at room temperature by using optically pumped, pentacene-doped p-Terphenyl as the amplifier medium. It produced pulses
Maser
American physicist and businessman
Goddard Space Flight Center, Lawandy was part of a team that developed optically pumped far-infrared molecular lasers for use as local oscillators in astronomical
Nabil_M._Lawandy
OPTICAL PUMPING
OPTICAL PUMPING
OPTICAL PUMPING
Surname or Lastname
English
English : from Old English bord ‘board’, ‘plank’, ‘table’, hence a metonymic occupational name for a carpenter or a topographic name for someone who lived in a plank-built cottage.
Girl/Female
Greek Latin
Named for Dionysus god of wine.
Boy/Male
Hindu, Indian, Sanskrit, Telugu
One who can Command an Elephant; Elephant Tamer
Girl/Female
Hindu, Indian
Star
Boy/Male
Bengali, Hindu, Indian, Marathi, Oriya, Sanskrit, Telugu
Son of Himalaya; Submerged Mountain; A Mountain; A Himalayan Peak
Boy/Male
Indian
Confident; Great
Boy/Male
Biblical
The right hand.
Boy/Male
Tamil
Yahweh has remembered
Girl/Female
Arabic, Muslim
Victorious
Female
Greek
(ΘÎτις) Greek name THETIS means "one who places." In mythology, this is the name of a sea goddess, one of the fifty Nereids.
OPTICAL PUMPING
OPTICAL PUMPING
OPTICAL PUMPING
OPTICAL PUMPING
OPTICAL PUMPING
adv.
By optics or sight; with reference to optics.
a.
One who deals in optical glasses and instruments.
a.
Alt. of Optical
a.
Relating to the science of optics; as, optical works.
a.
Expressed in metrical form; exhibiting the imaginative or the rhythmical quality of poetry; as, a poetical composition; poetical prose.
a.
One skilled in optics.
a.
Of or pertaining to a vortex or vortexes; resembling a vortex in form or motion; whirling; as, a vortical motion.
n.
Of or pertaining to the science of vision; optical.
n.
A reflecting optical glass or instrument; a mirror.
n.
An optical glass that is convex on both sides.
n.
An instrument for showing the optical effects of color.
a.
Involving an option; depending on the exercise of an option; left to one's discretion or choice; not compulsory; as, optional studies; it is optional with you to go or stay.
a.
Belonging to, or consisting of, bark or rind; resembling bark or rind; external; outer; superficial; as, the cortical substance of the kidney.
n.
The space covered by an optical instrument at one view.
n.
An optical toy similar to the phenakistoscope. See Phenakistoscope.
a.
Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of Brain, and Eye.
n.
An optical glass; a telescope.
n.
Of or pertaining to a place; limited; logical application; as, a topical remedy; a topical claim or privilege.
a.
Topical.
a.
Of or pertaining to vision or sight.