| 000 | 02977nlm1a2200349 4500 | ||
|---|---|---|---|
| 001 | 666089 | ||
| 005 | 20231030042025.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\37293 | ||
| 090 | _a666089 | ||
| 100 | _a20211203a2021 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aGeneration of hard twisted photons by charged particles in cholesteric liquid crystals _fO. V. Bogdanov, P. O. Kazinsky, P. S. Korolev, G. Yu. Lazarenko |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 84 tit.] | ||
| 330 | _aWe study the radiation from charged particles crossing a cholesteric plate in the shortwave approximation when the wavelength of photons is much smaller than the pitch of the cholesteric helix, whereas the escaping angle of the photon and the anisotropy of the permittivity tensor can be arbitrary. The radiation of photons is treated in the framework of quantum electrodynamics with classical currents. The radiation of the plane-wave photons and the photons with definite projection of the angular momentum (the twisted photons) produced by charged particles crossing the cholesteric plate and moving rectilinearly and uniformly is considered. The explicit expressions for the average number of radiated photons and their spectra with respect to the energy and the projection of the angular momentum are obtained in this case. It turns out that in the paraxial approximation the projection of the orbital angular momentum, l, of radiated twisted photons is related to the harmonic number n∈Z as l=2n+1, i.e., the given system is a pure source of twisted photons as expected. It is shown that in the paraxial shortwave regime the main part of radiated photons is linearly polarized with l=±1 at the harmonics n={−1,0}. The applicability conditions of the approach developed are discussed. As the examples, we consider the production of 6.3 eV twisted photons from uranium nuclei and the production of x-ray twisted photons from 120 MeV electrons. | ||
| 461 | _tPhysical Review E | ||
| 463 |
_tVol. 104, iss. 2 _v[024701, 18 p. ] _d2021 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 701 | 1 |
_aBogdanov _bO. V. _cphysicist _cassociate professor of Tomsk Polytechnic University _f1981- _gOleg Viktorovich _2stltpush _3(RuTPU)RU\TPU\pers\31518 |
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| 701 | 1 |
_aKazinsky _bP. O. _gPetr Olegovich |
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| 701 | 1 |
_aKorolev _bP. S. _gPetr Sergeevich |
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| 701 | 1 |
_aLazarenko _bG. Yu. _gGeorgy Yurjevich |
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| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bШкола базовой инженерной подготовки _bОтделение математики и информатики _h8031 _2stltpush _3(RuTPU)RU\TPU\col\23555 |
| 801 | 2 |
_aRU _b63413507 _c20211203 _gRCR |
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| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevE.104.024701 | |
| 942 | _cCF | ||