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101 0 _aeng
102 _aUS
135 _adrnn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aAsymmetry of the angular distribution of radiation of channeled relativistic electrons in optically transparent crystals
_fK. B. Korotchenko, Yu. L. Pivovarov
203 _aText
_celectronic
225 1 _aOptics And Laser Physics
300 _aTitle screen
320 _a[References: p. 93 (17 tit.)]
330 _aIt has been shown that optical and ultraviolet radiation from relativistic electrons at planar channeling in optically transparent crystals is characterized by an unusual dependence on the polar and azimuth angles. A fraction of radiation with the frequency ω near which the derivative of the refractive index is nonzero, n'(ω) = dn(ω)/dω ≠ 0, should be observed at an angle close to π/2 with respect to the electron beam. For normal dispersion (n'(ω) > 0), this angle is smaller than π/2, whereas for anomalous dispersion (n'(ω) < 0), it is larger than π/2 (“backward” radiation). A pronounced dependence of the radiation intensity on the azimuth angle φ, i.e., azimuthal asymmetry, appears beyond the region of normal and anomalous dispersion at a fixed polar angle θ. In particular, the ratio of radiation intensities at angles φ = 0 and π/2 at θ = π/2 reaches a maximum value of about the square of the refractive index.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJETP Letters
_oScientific Journal
_d1996-
463 _tVol. 103, iss. 2
_v[P. 87-93]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aасимметрия
610 1 _aпрозрачные кристаллы
610 1 _aрелятивистские электроны
700 1 _aKorotchenko
_bK. B.
_cphysicis
_cProfessor of Tomsk Polytechnic University, doctor of physical and mathematical Sciences
_f1949-
_gKonstantin Borisovich
_2stltpush
_3(RuTPU)RU\TPU\pers\31536
701 1 _aPivovarov
_bYu. L.
_cphysicist
_cprofessor of Tomsk Polytechnic University
_f1953-
_gYuriy Leonidovich
_2stltpush
_3(RuTPU)RU\TPU\pers\31522
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра теоретической и экспериментальной физики (ТиЭФ)
_h138
_2stltpush
_3(RuTPU)RU\TPU\col\18726
801 2 _aRU
_b63413507
_c20160523
_gRCR
856 4 _uhttp://dx.doi.org/10.1134/S0021364016020077
942 _cCF