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Inelastic optical scattering phenomenon
Raman amplification /ˈrɑːmən/ is a way of increasing the signal strength in an optical fiber. It is often used in a fiber that carries a signal for a long
Raman_amplification
Inelastic scattering of photons by matter
In chemistry and physics, Raman scattering or the Raman effect (/ˈrɑːmən/) is the inelastic scattering of photons by matter, meaning that there is both
Raman_scattering
Device that amplifies an optical signal
causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron–hole recombination occurs. In Raman amplifiers, Raman scattering
Optical_amplifier
Indian physicist (1888–1970)
Raman was played by T. M. Karthik. Coherent anti-Stokes Raman spectroscopy Inverse Raman effect Journal of Raman Spectroscopy Raman amplification Raman
C._V._Raman
Spectroscopic technique
Raman spectroscopy (/ˈrɑːmən/; named after physicist C. V. Raman) is a spectroscopic technique typically used to determine vibrational modes of molecules
Raman_spectroscopy
Type of laser
A Raman laser is a specific type of laser in which the fundamental light-amplification mechanism is stimulated Raman scattering. In contrast, most "conventional"
Raman_laser
Technique for amplifying ultrashort laser pulses
velocity Mode locking Raman amplification Regenerative amplification Paschotta, Rüdiger (July 1, 2017). "Chirped-pulse Amplification". RP Photonics Encyclopedia
Chirped_pulse_amplification
achieve high gain. Chirped pulse amplification Gain-switching Modelocking Optical amplifier Q-switching Raman amplification Paschotta, Dr Rüdiger (2006-03-11)
Regenerative_amplification
Optical imaging method
employs the Photonic Time Stretch with internal Raman amplification to realize optical image amplification to circumvent the fundamental trade-off between
Serial time-encoded amplified microscopy
Serial_time-encoded_amplified_microscopy
Device that emits light via optical amplification
optical amplification based on the stimulated emission of electromagnetic radiation. The word laser originated as an acronym for light amplification by stimulated
Laser
M. C.; et al. (2001). "Hollow cathode ion lasers for deep ultraviolet Raman spectroscopy and fluorescence imaging". Review of Scientific Instruments
List_of_laser_types
Name list
of which C. V. Raman was awarded the Nobel Prize Raman spectroscopy, a technique which relies on Raman scattering Raman amplification, used in optical
Raman_(name)
Chinese-American physicist
high-energy laser pulses with solid matter, and the use of Raman amplification in plasma to amplify lasers. Ping was a student at the University of Science
Yuan_Ping_(physicist)
Quantum optics in silicon
such as Raman lasers. Early studies of Raman amplification and Raman lasers started at UCLA which led to demonstration of net gain Silicon Raman amplifiers
Silicon_photonics
Azure blue pigment made in pre-Columbian Mesoamerica
study techniques (diffraction studies, infrared spectroscopies, Raman amplification, optical spectroscopies, voltammetry, nuclear magnetic resonance
Maya_blue
Fiber-optic communications technology
amplification for the C-band, Raman amplification adds a mechanism for amplification in the L-band. For CWDM, wideband optical amplification is not available, limiting
Wavelength-division multiplexing
Wavelength-division_multiplexing
Japanese electrical engineer
reported the highest gain of 46.5 dB in 1989 after employing the LD for Raman amplification at 1.55 μm in 1988. He invented the LD pumped erbium-doped fiber
Masataka_Nakazawa
Spectroscopic technique
include the signal resulting from two-photon absorption and stimulated Raman amplification. Two-photon absorption occurs in samples that are generally transparent
Time-resolved_spectroscopy
Transoceanic communication line placed on the seabed
1480 nm laser. The noise has to be filtered using optical filters. Raman amplification can be used to extend the reach or the capacity of an unrepeatered
Submarine communications cable
Submarine_communications_cable
Interacting phenomenon between light and matter
generated Sample non-parametric nonlinear processes: Stimulated Raman scattering Raman amplification Two-photon absorption, simultaneous absorption of two photons
Parametric_process_(optics)
Branch of physics
difference between two other frequencies. Optical parametric amplification (OPA), amplification of a signal input in the presence of a higher-frequency pump
Nonlinear_optics
Zouheir; Kawata, Satoshi (September 2000). "Metallized tip amplification of near-field Raman scattering". Optics Communications. 183 (1–4): 333–336. Bibcode:2000OptCo
Tip-enhanced Raman spectroscopy
Tip-enhanced_Raman_spectroscopy
American physicist (1943–2023)
of linear and nonlinear Si-nanowire-photonics, including in 2001 Raman amplification (optical amplifier) in SOI technology (silicon-on-insulator, that
Richard_M._Osgood_Jr.
Type of filament material used in telecommunications
"Module for simultaneous C + L-band dispersion compensation and Raman amplification". Optical Fiber Communications Conference (2002), Paper TuJ6. Optical
All-silica_fiber
laser Radial polarisation Radiometry radius of curvature Rainbow Raman amplification Raman amplifier Ray (optics) Rayleigh criterion Rayleigh scattering
Index_of_optics_articles
Light technique
waveform is simultaneously amplified in the dispersive fiber by the process of stimulated Raman scattering. This optical amplification overcomes the thermal
Time stretch dispersive Fourier transform
Time_stretch_dispersive_Fourier_transform
advocate of plasma cosmology Yuan Ping inertial confinement fusion, Raman amplification of lasers in plasma Weimer Award (2011) APS Fellow (2015) Maxim G
List_of_plasma_physicists
Sub-field in optics consisting of lenses and mirrors
processes, the optical Kerr effect, cross-phase modulation, and Raman amplification, are a few examples of nonlinear effects in optics. One currently
Linear_optics
System with capability to digitize very high bandwidth signals
cost of larger loss—a problem that has been overcome by employing Raman amplification within the dispersive fiber itself, leading to the world's fastest
Time-stretch analog-to-digital converter
Time-stretch_analog-to-digital_converter
All-optical regenerator used in optical communications
intrinsic energy loss. In order to compensate those losses, distributed Raman amplification can be involved. The 2R regeneration can be combined with an additional
Mamyshev_2R_regenerator
Form of spectroscopy employed in physics, chemistry, biology, and other fields
Stimulated Raman spectroscopy, also referred to as stimulated Raman scattering (SRS), is a form of spectroscopy employed in physics, chemistry, biology
Stimulated_Raman_spectroscopy
Laser using an optical fiber as the active gain medium
fiber amplifiers, which provide light amplification without lasing. Fiber nonlinearities, such as stimulated Raman scattering or four-wave mixing, can also
Fiber_laser
Application of laser in medical field
photorejuvenation, and laser surgery. The word laser stands for "light amplification by stimulated emission of radiation". The laser was invented in 1960
Laser_medicine
Device that emites acoustic radiation
Sound amplification by stimulated emission of radiation (SASER) refers to a device that emits acoustic radiation. It focuses sound waves in a way that
Sound amplification by stimulated emission of radiation
Sound_amplification_by_stimulated_emission_of_radiation
Study involving matter and electromagnetic radiation
reaction intermediates in the femtosecond timescale. Raman optical activity spectroscopy exploits Raman scattering and optical activity effects to reveal
Spectroscopy
Indian folklore character
and folk tales of Travancore. Neeli also appears in Marthandavarma, CV Raman Pillai's historical novel. Even though she is a Yakshi (Ghost), Neeli is
Kalliyankattu_Neeli
Swiss physicist
Gb/S) Transmission over 40x100 km NZDSF Using RZ-DPSK Format and All-Raman-Amplified Spans". 2002-03-17. pp. FC2. "100 Gbit/S All-Optical Wavelength Conversion
Juerg_Leuthold
Laser using electron beam in vacuum as gain medium
single pass of radiation through the undulator. This requires enough amplification over a single pass to produce a useful beam. XFELs use undulator sections
Free-electron_laser
Monochrome light beam whose amplitude envelope is a Gaussian function
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Gaussian_beam
Type of light that can be emitted by an optical amplifier
compression of the laser pulse, which is temporally stretched during the amplification, the ASE causes a quasi-continuous pedestal which is partly located
Amplified spontaneous emission
Amplified_spontaneous_emission
Laser cooling technique
non-Rydberg neutral atoms was demonstrated in 1998 by S. E. Hamann et al. via Raman cooling. Resolved sideband cooling is a laser-cooling technique that can
Resolved_sideband_cooling
Skin treatment
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Photorejuvenation
Refractive eye surgery procedure
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Photorefractive_keratectomy
amplification Clementine (spacecraft) Cloud seeding Coherence (physics) Coherence length Coherence time Coherent addition Coherent anti-Stokes Raman spectroscopy
List_of_laser_articles
Process of hair removal by exposure to laser pulses
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_hair_removal
Technical applications of optics
through emission, transmission, modulation, signal processing, switching, amplification, and sensing. Even though photonics is a commonly used term, there is
Photonics
French fusion research project
amplifiers twice by an optical switch in front of a mirror. When the amplification is complete, the beams travel towards the "line end", closest to the
Laser_Mégajoule
3D printing technique
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Selective_laser_sintering
3D printing technique
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Selective_laser_melting
may mean logarithm of the amplification coefficient. In many articles on laser physics, which do not use the amplification coefficient K {\displaystyle
Gain_(laser)
Treatment using irradiation with light of low power intensity
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Low-level_laser_therapy
Optical component allowing the transmission of light in only one direction
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Optical_isolator
Transmitting information over optical fiber
Jun-ichi & Suto, Ken (2004). "Terahertz wave generation and light amplification using Raman effect". In Bhat, K. N. & DasGupta, Amitava (eds.). Physics of
Fiber-optic_communication
Fast, high sensitivity, low noise electronic photon detector
emission amplification stage in a single vacuum envelope and the first to characterize its performance as a photomultiplier with electron amplification gain
Photomultiplier_tube
Laser capable of delivering picosecond (10^-12 s) pulses of light
and dye lasers. High output peak power usually requires chirped pulse amplification of a seed pulse from a modelocked laser. Dealing with high optical powers
Ultrashort_pulse_laser
Arrangement of mirrors
the mirrors is larger than in any other cavity design. This prevents amplified spontaneous emission and is important for designing high power amplifiers
Optical_cavity
Canadian physicist, engineer, and Nobel laureate
with Gérard Mourou, for the practical implementation of chirped pulse amplification. She is a professor at the University of Waterloo in Ontario, Canada
Donna_Strickland
Process that removes material from an object by heating it with a laser
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_ablation
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser-hybrid_welding
Recreational shooting sport and game
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_tag
Electromagnetic wave that is not pulsed
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Continuous_wave
Type of optical fiber
enables amplification of ultrafast lasers by very short amplifiers only tens of centimeters long, providing high fidelity ultrashort pulse amplification. One
Tapered_double-clad_fiber
parametric amplifier / optical parametric amplification OPCPA – optical parametric chirped pulse amplification [citation needed] PI – population inversion
Laser_acronyms
Handheld device that emits a laser beam
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_pointer
Surface engineering process
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_peening
Measure of laser beam quality
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
M_squared
Way to produce very short laser bursts
the cavity oscillates, this process repeats, leading to the selective amplification of the high-intensity spikes and the absorption of the low-intensity
Mode_locking
Type of atomic emission spectroscopy
fluorescence List of surface analysis methods Photoacoustic spectroscopy Raman spectroscopy Spectroscopy Radziemski, Leon J.; Cremers, David A. (2006)
Laser-induced breakdown spectroscopy
Laser-induced_breakdown_spectroscopy
Infrared laser
the pulse duration. A novel front end amplification system based on Optical Parametric Chirped Pulse Amplification (OPCPA), involving the pulse being stretched
Vulcan_laser
When a system has more excited-state members than ground-state
coherent photon. In effect, this results in optical amplification. If the number of photons being amplified per unit time is greater than the number of photons
Population_inversion
Welding technique
doped optical fiber serves as the gain medium in which laser light is amplified. Such lasers are capable of power up to 50 kW and are increasingly being
Laser_beam_welding
Optical spectroscopic technique
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Cavity_ring-down_spectroscopy
Apparatus for trapping and cooling neutral atoms
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Magneto-optical_trap
Infrared laser
the glass. These effects became so severe after just the first few amplification stages of early lasers, that it was seen as essentially impossible to
Argus_laser
Military warning system
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_warning_receiver
Type of ultraviolet laser important in chip manufacturing and eye surgery
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Excimer_laser
Type of sensor
other distributed fiber techniques such as those based on Brillouin or Raman scatter, distributed acoustic sensing is only able to detect changes in
Distributed_acoustic_sensing
Laser which emits light with blue wavelengths
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Blue_laser
Process of creating thru-holes using laser cutting methods
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_drilling
Spectroscopy with lasers with very short pulses
70-100 MHz. Chirped pulse amplification through regenerative amplification can be used to attain higher pulse energies. For amplification, laser pulses from
Ultrafast_laser_spectroscopy
Laser in which electricity is discharged through gas
femtometers), making them candidates for use in fluorescence suppressed Raman spectroscopy. The Copper vapor laser, with two spectral lines of green (510
Gas_laser
Optical imaging technique
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Confocal_microscopy
Technology for measuring geometrical dimensions of particle
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_diffraction_analysis
Laser which uses a solid gain medium
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Solid-state_laser
American nuclear fusion facility
into 48 Preamplifier Modules (PAMs). Each PAM conducts a two-stage amplification process via xenon flash lamps. The first stage is a regenerative amplifier
National_Ignition_Facility
Input power level at which a laser generates light primarily by stimulated emission
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Lasing_threshold
High-power laser
fusion research. The name refers to the twelve individual beamlines used to amplify the laser energy. Unlike most other modern ICF lasers, which are frequency
GEKKO_XII
Planned ICF powered by lasers
inversion of the neodymium (Nd) atoms in the glass. This readies them for amplification via stimulated emission when a small amount of laser light, generated
HiPER
Medical use of laser to cut tissues
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_surgery
Engraving objects using lasers
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Laser_engraving
Technique for measuring chemical composition of a gas
Martin, Philip A.; Holdsworth, Robert J. (2006). "Effect of broadband amplified spontaneous emission on absorption measurements in phase-shift off-axis
Tunable diode laser absorption spectroscopy
Tunable_diode_laser_absorption_spectroscopy
doi:10.1021/la001401v. Hayazawa, N (2000). "Metallized tip amplification of near-field Raman scattering". Optics Communications. 183 (1–4): 333–336. Bibcode:2000OptCo
Vibrational analysis with scanning probe microscopy
Vibrational_analysis_with_scanning_probe_microscopy
Technology that uses a laser to cut materials
a gas or liquid. The "seed laser" produces the laser beam and is then amplified within a glass fiber. With a wavelength of only 1064 nanometers fiber
Laser_cutting
Infrared laser
leading to a population inversion which readies the lasing medium for amplification of a laser beam. A small amount of laser light, generated externally
Shiva_laser
Laser pulsing technique
changed from low to high Q, allowing feedback and the process of optical amplification by stimulated emission to begin. Because of the large amount of energy
Q-switching
Source of optical gain in a laser
low temperatures or well energetically split groups. In the case of amplification of optical signals, the lasing frequency is called signal frequency
Active_laser_medium
High-power short pulse laser facility
C, that could be operated either in longpulse or in chirped pulse amplification (CPA) shortpulse mode. Longpulse beams A and B, were laser chains capable
Trident_laser
Laser that obtains energy from chemical reactions
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Chemical_laser
Form of laser based refractive eye surgery
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Small incision lenticule extraction
Small_incision_lenticule_extraction
Scientific instruments
Free-electron Diode Solid-state Er:YAG Nd:YAG Raman Ruby Ti-sapphire X-ray Science Active medium Amplified spontaneous emission Continuous wave Laser ablation
Optical_tweezers
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