Can the radiance increase in a noninverted medium?

The possibility of the brightness and temperature of scattered radiation exceeding the attendant magnitudes for the incident radiation is predicted for the case of a noninverted medium, based on the analysis of radiation transfer equations. The irreversible nature of the process and impossibility of introducing ray approximation are identified as the necessary conditions.

PACS: 42.25.−p
DOI: 10.1070/PU1999v042n02ABEH000569
URL: https://ufn.ru/en/articles/1999/2/e/
Web of Science

000079341200005
Citation: Shepelev A V "Can the radiance increase in a noninverted medium?" Phys. Usp. 42 203–204 (1999)

BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Шепелев А В «Возможно ли увеличение яркости излучения в неинверсной среде?» УФН 169 213–215 (1999); DOI: 10.3367/UFNr.0169.199902f.0213

References (13) Cited by (1) Similar articles (20) ↓

A.P. Potylitsyn, D.Yu. Sergeeva et al “Diffraction radiation from a charge as radiation from a superluminal source in a vacuum” Phys. Usp. 63 303–308 (2020)
A.G. Shalashov, E.D. Gospodchikov “'Anomalous' dissipation of a paraxial wave beam propagating along an absorbing plane” Phys. Usp. 65 1303–1312 (2022)
A.A. Kolokolov “Fresnel formulas and the principle of causality” Phys. Usp. 42 931 (1999)
V.S. Olkhovsky “On the multiple internal reflections of particles and phonons tunneling in one, two, or three dimensions” Phys. Usp. 57 1136–1145 (2014)
N.V. Selina “Light diffraction in a plane-parallel layered structure with the parameters of a Pendry lens” Phys. Usp. 65 406–414 (2022)
V.N. Tsytovich “On the physical interpretation of Thomson scattering in a plasma” Phys. Usp. 56 180–191 (2013)
B.Ya. Zel’dovich, M.J. Soileau “Bi-frequency pendulum on a rotary platform: modeling various optical phenomena” Phys. Usp. 47 1239–1255 (2004)
F.V. Ignaovich, V.K. Ignatovich “Optics of anisotropic media” Phys. Usp. 55 709–720 (2012)
N.P. Klepikov “Radiation damping forces and radiation from charged particles” Sov. Phys. Usp. 28 506–520 (1985)
G.D. Fleishman “Transition radiation of a relativistic particle moving along a curve” Sov. Phys. Usp. 34 (1) 86–96 (1991)
K.Yu. Platonov, I.N. Toptygin, G.D. Fleishman “Emission of radiation by particles in media with inhomogeneities and coherent bremsstrahlung” Sov. Phys. Usp. 33 (4) 289–295 (1990)
B.M. Bolotovskii, A.V. Serov “Features of the transition radiation field” Phys. Usp. 52 487–493 (2009)
I.I. Abbasov, B.M. Bolotovskii, V.A. Davydov “High-frequency asymptotic behavior of radiation spectra of moving charges in classical electrodynamics” Sov. Phys. Usp. 29 788–796 (1986)
L.A. Apresyan, Yu.A. Kravtsov “Photometry and coherence: wave aspects of the theory of radiation transport” Sov. Phys. Usp. 27 301–313 (1984)
H. Paul, R. Fischer “Light absorption by a dipole” Sov. Phys. Usp. 26 923–926 (1983)
S.S. Kalmykova “Mechanism of induced transition radiation in fields of regular waves” Sov. Phys. Usp. 25 620–630 (1982)
V.S. Malyshevsky “Is it possible to measure the electromagnetic radiation of an instantly started charge?” Phys. Usp. 60 1294–1301 (2017)
L.Kh. Ingel’ “Self-action of a heat-releasing admixture in a liquid medium” Phys. Usp. 41 95–99 (1998)
V.F. Gantmakher “Chemical localization” Phys. Usp. 45 1165–1174 (2002)
V.N. Tsytovich “Collective effects of plasma particles in bremsstrahlung” Phys. Usp. 38 87–108 (1995)

The list is formed automatically.