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Longer titles found: Amplified spontaneous emission (view), Self-amplified spontaneous emission (view)

searching for Spontaneous emission 89 found (316 total)

alternate case: spontaneous emission

Laser diode rate equations (1,130 words) [view diff] exact match in snippet view article find links to article

where β0 is the spontaneous emission factor, λs is the centre wavelength for spontaneous emission and δλs is the spontaneous emission FWHM. Finally, λμ
Nitrogen laser (2,352 words) [view diff] exact match in snippet view article find links to article
the lower laser level: 40% optical: More stimulated emission than spontaneous emission The gain medium is nitrogen molecules in the gas phase. The nitrogen
Girish Saran Agarwal (900 words) [view diff] case mismatch in snippet view article find links to article
he published his first monograph "Quantum Statistical Theories of Spontaneous Emission and their Relation to other Approaches" at Springer. This book on
Ti-sapphire laser (1,504 words) [view diff] exact match in snippet view article find links to article
beam, thus increasing beam quality and cutting off some amplified spontaneous emission and to completely deplete the inversion in the gain medium. The pulses
Photoluminescence (3,340 words) [view diff] exact match in snippet view article find links to article
these conditions, coherent processes contribute significantly to the spontaneous emission. The decay of polarization creates excitons directly. The detection
Density of states (5,323 words) [view diff] exact match in snippet view article find links to article
different consequences for spontaneous emission. In photonic crystals, near-zero LDOS are expected, inhibiting spontaneous emission. Similar LDOS enhancement
Noise figure (2,217 words) [view diff] exact match in snippet view article find links to article
large n the variance of photons is Gn(2nsp(G-1)+1) where nsp is the spontaneous emission factor. One obtains SNRpnf,out = G2n2/(Gn(2nsp(G-1)+1)) = n/(2nsp(1-1/G)+1/G)
Peter E. Toschek (1,419 words) [view diff] exact match in snippet view article find links to article
difference frequency signal of two laser emission lines) by correlated spontaneous emission (1990), stochastic cooling of single ions (1995), the observation
Resonance fluorescence (5,338 words) [view diff] exact match in snippet view article find links to article
from the excited state to the ground state, Spontaneous Emission, can be examined. Spontaneous emission is when an excited electron arbitrarily decays
Maxwell–Bloch equations (1,580 words) [view diff] exact match in snippet view article find links to article
density matrix form. One arrives at the following equations, including spontaneous emission: dρggdt=γρee+i2(Ω∗ρ¯eg−Ωρ¯ge){\displaystyle {\frac {d\rho _{gg}}{dt}}=\gamma
Fred Cummings (975 words) [view diff] exact match in snippet view article find links to article
London, New York, Tokyo, 1987). F.W. Cummings, "On suppression of spontaneous emission" Phys. Rev. Lett. (1985*). F.W. Cummings and A.K. Rajagopal, "Production
Crosslight Software (963 words) [view diff] exact match in snippet view article find links to article
Optical properties such as quantum well/wire/dot optical gain and spontaneous emission rates are computed self-consistently. Advanced Physical Models of
Cavity switch (170 words) [view diff] exact match in snippet view article find links to article
Veldhoven, P.J.; Fiore, A. (Nov 2014). "Ultrafast non-local control of spontaneous emission". Nature Nanotechnology. 9 (11): 886–890. arXiv:1311.2233. Bibcode:2014NatNa
Quantum jump method (481 words) [view diff] exact match in snippet view article find links to article
(1992). "Monte Carlo simulation of the atomic master equation for spontaneous emission". Physical Review A. 45 (7): 4879–4887. Bibcode:1992PhRvA..45.4879D
Atomic line filter (3,698 words) [view diff] exact match in snippet view article find links to article
Weber to detect infrared radiation with very little noise. Zero spontaneous emission was already possible for x-ray and gamma ray amplifiers and Weber
Asım Orhan Barut (3,801 words) [view diff] case mismatch in snippet view article find links to article
1985 Quantum Electrodynamics Based on Self-Energy: Lamb Shift and Spontaneous Emission without Field Quantization 1985 Zitterbewegung of the Electron in
Thomas W. Mossberg (1,300 words) [view diff] exact match in snippet view article find links to article
Glauber, and R. J. (August 17, 1987). "Dynamical suppression of spontaneous emission". Physical Review Letters. 59 (7): 775–778. Bibcode:1987PhRvL..59
Excimer (1,166 words) [view diff] exact match in snippet view article find links to article
bonded exciplex state. Excimer lamp – Ultraviolet source based on spontaneous emission of excimer molecules. Excimer laser – Type of ultraviolet laser important
List of light sources (1,541 words) [view diff] exact match in snippet view article find links to article
descriptions of redirect targets Excimer lamp – Ultraviolet source based on spontaneous emission of excimer molecules. Fluorescent lamp – Lamp using fluorescence
Sophia Economou (423 words) [view diff] exact match in snippet view article find links to article
1103/PHYSREVLETT.94.227403. ISSN 0031-9007. PMID 16090438. Wikidata Q81032584. "Spontaneous emission and optical control of spins in quantum dots | WorldCat.org". www
Ortwin Hess (1,449 words) [view diff] exact match in snippet view article find links to article
slow light in semiconductor quantum dots and the dynamics of their spontaneous emission close to the stopped-light point in photonic crystals. Hess showed
Optical transistor (1,992 words) [view diff] exact match in snippet view article find links to article
Veldhoven, P.J.; Fiore, A. (Nov 2014). "Ultrafast non-local control of spontaneous emission". Nature Nanotechnology. 9 (11): 886–890. arXiv:1311.2233. Bibcode:2014NatNa
Bioelectrodynamics (1,097 words) [view diff] exact match in snippet view article find links to article
experimentally proven in optical range of electromagnetic spectrum. Spontaneous emission of photons by living cells, with intensity significantly higher than
Nabil M. Lawandy (1,624 words) [view diff] exact match in snippet view article find links to article
in glasses, announced the first observations of the inhibition of spontaneous emission in a 3D photonic lattice of self-organized colloidal crystals and
Quantum noise (3,504 words) [view diff] exact match in snippet view article find links to article
fsp{\displaystyle f_{sp}} is the spontaneous emission factor that typically corresponds relative strength of spontaneous emission to stimulated emission. A value
Laser guide star (1,726 words) [view diff] exact match in snippet view article find links to article
through optical pumping with circularly polarized light. Recoil from spontaneous emission, resulting in a momentum kick to the atom, causes a redshift in the
Dark state (1,458 words) [view diff] exact match in snippet view article find links to article
laser, even when the laser is exactly resonant with the transition. Spontaneous emission from |3⟩{\displaystyle |3\rangle } can result in an atom being in
Sound amplification by stimulated emission of radiation (7,513 words) [view diff] exact match in snippet view article find links to article
searching for materials in which stimulated emission rather than spontaneous emission, is the dominant decay process. A device was first experimentally
Vitaly Kocharovsky (2,033 words) [view diff] exact match in snippet view article find links to article
completing the habilitation thesis titled "Collective effects of spontaneous emission and quantum theory of dissipative instability". Kocharovsky started
Yuri Kivshar (720 words) [view diff] exact match in snippet view article find links to article
Dragomir N.; Kivshar, Yuri S. (12 December 2013). "Dual-channel spontaneous emission of quantum dots in magnetic metamaterials". Nature Communications
Graham Fleming (1,591 words) [view diff] no match in snippet view article find links to article
X.; Rosenthal, S. J.; Du, M. (15 September 1992). "Femtosecond spontaneous-emission studies of reaction centers from photosynthetic bacteria". Proceedings
Gamma-ray laser (1,920 words) [view diff] exact match in snippet view article find links to article
original on 2016-03-11. Retrieved 2016-02-24. Hien, P. Z. (1970). "Spontaneous emission of gamma quanta by a system containing identical nuclei". Journal
Victor Balykin (1,204 words) [view diff] exact match in snippet view article find links to article
V. I. Balykin, and K. Hakuta, Phys. Rev. A, 70, 063403 (2004). "Spontaneous emission of a cesium atom near a nanofiber: Efficient coupling of light to
Maxwell's demon (4,494 words) [view diff] exact match in snippet view article find links to article
of absorption of a photon at a specific wavelength, followed by spontaneous emission to a different internal state. The irreversible process is coupled
Tapered double-clad fiber (781 words) [view diff] exact match in snippet view article find links to article
non-linear effects including Brillouin and Raman scattering and spontaneous emission. Using tapered fiber with thick end core diameters of up to 200 µm
Trihydrogen cation (2,761 words) [view diff] exact match in snippet view article find links to article
to higher energy states from which it can relax by stimulated and spontaneous emission. The detection of the first H+ 3 emission lines was reported in 1989
Self-mixing interferometry (1,540 words) [view diff] exact match in snippet view article find links to article
is in turn linked to the random phase of the photons emitted by spontaneous emission. Compatibly with the noise associated with the electronics of the
Cluster decay (2,916 words) [view diff] exact match in snippet view article find links to article
Poenaru, D. N.; Ivascu, M.; Sandulescu, A.; Greiner, W. (1984). "Spontaneous emission of heavy clusters". Journal of Physics G. 10 (8): L183–L189. Bibcode:1984JPhG
János Hebling (563 words) [view diff] exact match in snippet view article find links to article
(1989-03-01). "Generation of femtosecond pulses by traveling-wave amplified spontaneous emission". Optics Letters. 14 (5): 278–280. Bibcode:1989OptL...14..278H. doi:10
Maiken Mikkelsen (507 words) [view diff] exact match in snippet view article find links to article
Jiani; Smith, David R.; Mikkelsen, Maiken H. (2015-07-27). "Ultrafast spontaneous emission source using plasmonic nanoantennas". Nature Communications. 6 (1)
L. M. Narducci (334 words) [view diff] exact match in snippet view article find links to article
Scully, M. O.; Oppo, G.-L.; Ru, P.; Tredicce, J. R. (1990-08-01). "Spontaneous emission and absorption properties of a driven three-level system" (PDF).
Raman scattering (4,052 words) [view diff] exact match in snippet view article find links to article
the phonon energies. The initial Raman spectrum is built up with spontaneous emission and is amplified later on. At high pumping levels in long fibers
Wheeler–Feynman absorber theory (3,590 words) [view diff] exact match in snippet view article find links to article
other oscillators. Jaynes has shown that it is easy to get both spontaneous emission and Lamb shift behavior in classical mechanics. Furthermore, Jaynes'
History of metamaterials (6,745 words) [view diff] exact match in snippet view article find links to article
dielectric structures (artificial dielectric). He noted that controlling spontaneous emission is desirable for semiconductor processes. Historically, and conventionally
Helen Freedhoff (1,859 words) [view diff] exact match in snippet view article find links to article
1986. Retrieved 17 June 2017. Freedhoff, H. S. (1987). "Cooperative spontaneous emission by a fully inverted array of N atoms: small-sample limit". Journal
Albert Polman (664 words) [view diff] case mismatch in snippet view article find links to article
Lagendijk, A.; Polman, A. (1995-03-27). "Measuring and Modifying the Spontaneous Emission Rate of Erbium near an Interface" (PDF). Physical Review Letters
Costas Soukoulis (646 words) [view diff] exact match in snippet view article find links to article
fabricate photonic crystals at optical wavelengths, enhance the spontaneous emission and produce nanolasers with low threshold limit. Soukoulis and Wegener
Sandra J. Rosenthal (1,236 words) [view diff] no match in snippet view article find links to article
J.; Xie, X.; Rosenthal, S. J.; Du, M. (1992-09-15). "Femtosecond spontaneous-emission studies of reaction centers from photosynthetic bacteria". Proceedings
Gallium arsenide (5,147 words) [view diff] exact match in snippet view article find links to article
Retrieved 2022-10-11. Schnitzer, I.; et al. (1993). "Ultrahigh spontaneous emission quantum efficiency, 99.7 % internally and 72 % externally, from AlGaAs/GaAs/AlGaAs
Decoherence-free subspaces (4,098 words) [view diff] exact match in snippet view article find links to article
that are invariant under a particular unitary time evolution in spontaneous emission. Shortly afterwards, L-M Duan and G-C Guo also studied this phenomenon
Lindbladian (3,483 words) [view diff] exact match in snippet view article find links to article
necessary for understanding many commonly observed phenomena like the spontaneous emission of light from excited atoms, or the performance of many quantum technological
Anthony E. Siegman (5,080 words) [view diff] exact match in snippet view article find links to article
Physics ??, 74-75 (November/December 1988). A. E. Siegman, "Excess spontaneous emission in non-hermitian optical systems. I. Laser amplifiers," Phys. Rev
Super radiant emission (916 words) [view diff] exact match in snippet view article find links to article
amplification of the excited radiation as occurring in self-amplified spontaneous emission (SASE). Instruments that uses the super radiant emission. Free Electron
Nuclear drip line (3,941 words) [view diff] exact match in snippet view article find links to article
particle separation energy is less than or equal to zero, for which the spontaneous emission of that particle is energetically allowed. Although the location
F. J. Duarte (3,092 words) [view diff] exact match in snippet view article find links to article
narrow-linewidth dispersive dye laser oscillators: very low amplified spontaneous emission levels and reduction of linewidth instabilities". Applied Optics
Jürgen Mlynek (1,238 words) [view diff] case mismatch in snippet view article find links to article
Mlynek, J. (29 August 1994). "Loss of Spatial Coherence by a Single Spontaneous Emission". Physical Review Letters. 73 (9). American Physical Society (APS):
Dicke model (4,296 words) [view diff] exact match in snippet view article find links to article
light scales as N2{\displaystyle N^{2}}. This is in contrast to the spontaneous emission of N{\displaystyle N} independent two-level systems, whose decay
Planck's law (17,409 words) [view diff] exact match in snippet view article find links to article
change of these densities in time will be due to three processes: Spontaneous emission (dn1dt)spon=A21n2{\displaystyle \left({\frac {dn_{1}}{dt}}\right)_{\mathrm
Magnetic resonance imaging (10,488 words) [view diff] case mismatch in snippet view article find links to article
Bahkar B (1998). "NMR Signal Reception: Virtual Photons and Coherent Spontaneous Emission". Concepts in Magnetic Resonance. 9 (5): 277–297. doi:10
James Chadwick (7,321 words) [view diff] case mismatch in snippet view article find links to article
doi:10.1038/143276a0. S2CID 4076376. Goldhaber, Maurice (1934). "Spontaneous Emission of Neutrons by Artificially Produced Radioactive Bodies". Nature
Single-photon source (3,417 words) [view diff] exact match in snippet view article find links to article
nanomaterials engineered into single quantum emitters where their spontaneous emission could be tuned by changing the local density of optical states in
Christoph Helmut Keitel (914 words) [view diff] case mismatch in snippet view article find links to article
Measurements, Phys. Rev. Lett. 92, (2004) 230802. C. H. Keitel, Narrowing Spontaneous Emission without Intensity Reduction, Phys. Rev. Lett. 83, (1999) 1307–1310
Autler–Townes effect (3,025 words) [view diff] exact match in snippet view article find links to article
energy imparted in an atom initially at rest by "recoil" during the spontaneous emission of a photon: εrecoil=ℏ2k22m,{\displaystyle \varepsilon _{recoil}={\frac
Ammonia (15,154 words) [view diff] exact match in snippet view article find links to article
in the galactic disk. By balancing and stimulated emission with spontaneous emission, it is possible to construct a relation between excitation temperature
Black-body radiation (9,107 words) [view diff] no match in snippet view article find links to article
The causal effect of thermodynamic absorption on thermodynamic (spontaneous) emission is not direct, but is only indirect as it affects the internal state
Ernest Titterton (3,900 words) [view diff] case mismatch in snippet view article find links to article
Frisch 1979, p. 129. Scharff-Goldhaber, G.; G. S., Klaiber (1946). "Spontaneous Emission of Neutrons from Uranium". Physical Review. 70 (3–4): 229. Bibcode:1946PhRv
Nuclear magnetic resonance (9,921 words) [view diff] exact match in snippet view article find links to article
B. (1997). "NMR signal reception: Virtual photons and coherent spontaneous emission". Concepts in Magnetic Resonance. 9 (5): 277–297. doi:10
Quantum Trajectory Theory (1,492 words) [view diff] exact match in snippet view article find links to article
(1992). "Monte Carlo simulation of the atomic master equation for spontaneous emission". Physical Review A. 45 (7): 4879–4887. Bibcode:1992PhRvA..45.4879D
Dirk Englund (770 words) [view diff] exact match in snippet view article find links to article
2023. Englund, D., Fattal, D., Waks, E., et al. Controlling the spontaneous emission rate of single quantum dots in a two-dimensional photonic crystal
Dorin N. Poenaru (2,375 words) [view diff] exact match in snippet view article find links to article
, Sandulescu, A., and Greiner, W., Atomic nuclei decay modes by spontaneous emission of heavy ions, Physical Review C 32 (1985) 572-581. W. Kutschera
Chernobyl disaster (29,872 words) [view diff] exact match in snippet view article find links to article
"Radiation damages and self-sputtering of high-radioactive dielectrics: spontaneous emission of submicronic dust particles" (PDF). Condensed Matter Physics. 5
Corium (nuclear reactor) (5,713 words) [view diff] exact match in snippet view article
"Radiation damages and self-spluttering of high radioactive dielectrics: Spontaneous emission of submicrometre dust particles". Condensed Matter Physics. 5 (3(31)):
Nanolaser (3,727 words) [view diff] exact match in snippet view article find links to article
wavelength scale. The appearance of photonic crystals makes the spontaneous emission in the photon gap completely suppressed. But the high cost of photonic
Uncertainty principle (18,054 words) [view diff] case mismatch in snippet view article find links to article
Gabrielse, Gerald; H. Dehmelt (1985). "Observation of Inhibited Spontaneous Emission". Physical Review Letters. 55 (1): 67–70. Bibcode:1985PhRvL..55.
Quantum dot (13,122 words) [view diff] case mismatch in snippet view article find links to article
S2CID 205236024. Van Driel, A. F. (2005). "Frequency-Dependent Spontaneous Emission Rate from CdSe and CdTe Nanocrystals: Influence of Dark States" (PDF)
Howard Carmichael (1,996 words) [view diff] exact match in snippet view article find links to article
and Walls, H. J. and D. F. (1975). "A comment on the treatment of spontaneous emission from a strongly driven two-level atom". Journal of Physics B: Atomic
Semiconductor optical gain (2,166 words) [view diff] exact match in snippet view article find links to article
intensity I A S E {\displaystyle I_{\mathrm {ASE} }} of the amplified spontaneous emission (ASE) of the sample out of this edge is measured as a function of
Project Y (16,871 words) [view diff] case mismatch in snippet view article find links to article
Frisch 1979, p. 129. Scharff-Goldhaber, G.; Klaiber, G. S. (1946). "Spontaneous Emission of Neutrons from Uranium". Physical Review. 70 (3–4): 229. Bibcode:1946PhRv
Extended periodic table (15,083 words) [view diff] exact match in snippet view article find links to article
nucleus will pull an electron out of the vacuum, resulting in the spontaneous emission of a positron. This diving of the 1s subshell into the negative continuum
Carlos Stroud (1,754 words) [view diff] exact match in snippet view article find links to article
1103/PhysRevA.1.106 C. R. Stroud, Jr., Quantum-electrodynamic treatment of spontaneous emission in the presence of an applied field, Physical Review A, 3 1044–1052
James Benjamin Rosenzweig (765 words) [view diff] case mismatch in snippet view article find links to article
S.; Carneiro, J.-P. (2000). "First Observation of Self-Amplified Spontaneous Emission in a Free-Electron Laser at 109 nm Wavelength". Physical Review Letters
Transparent ceramics (7,749 words) [view diff] exact match in snippet view article find links to article
determined by a combination of high emission cross section with long spontaneous emission lifetime, high damage threshold, mechanical strength, thermal conductivity
Perovskite nanocrystal (10,983 words) [view diff] exact match in snippet view article find links to article
Humer, Markus; et al. (20 August 2015). "Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites"
History of electromagnetic theory (20,867 words) [view diff] exact match in snippet view article find links to article
who, during 1920, was first able to compute the coefficient of spontaneous emission of an atom. Paul Dirac described the quantization of the electromagnetic
Incoherent broad-band cavity-enhanced absorption spectroscopy (3,720 words) [view diff] exact match in snippet view article find links to article
is used as a broadband source which is in our case the amplified spontaneous emission (ASE) of another gain medium. In the single coupler configuration
Xenon monochloride (22,319 words) [view diff] exact match in snippet view article find links to article
relaxation is complete other processes take over. Depopulation by spontaneous emission is very important as well as reactions (11) and (17). These two processes
Heat transfer physics (8,878 words) [view diff] exact match in snippet view article find links to article
frequency, γ˙ph,e,sp{\displaystyle {\dot {\gamma }}_{ph,e,sp}}: spontaneous emission rate (s−1), μe: transition dipole moment, ∫ωdω{\displaystyle \textstyle
History of mathematical notation (16,270 words) [view diff] exact match in snippet view article find links to article
who, during 1920, was first able to compute the coefficient of spontaneous emission of an atom. In 1928, the relativistic Dirac equation was formulated
James R. Biard (7,185 words) [view diff] exact match in snippet view article find links to article
April 29, 2008 U.S. patent 7,403,553 Absorbing layers for reduced spontaneous emission effects in an integrated photodiode, Issued: July 22, 2008 U.S. patent