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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009

Выпуски:
Том 78, 2019 Том 77, 2018 Том 76, 2017 Том 75, 2016 Том 74, 2015 Том 73, 2014 Том 72, 2013 Том 71, 2012 Том 70, 2011 Том 69, 2010 Том 68, 2009 Том 67, 2008 Том 66, 2007 Том 65, 2006 Том 64, 2005 Том 63, 2005 Том 62, 2004 Том 61, 2004 Том 60, 2003 Том 59, 2003 Том 58, 2002 Том 57, 2002 Том 56, 2001 Том 55, 2001 Том 54, 2000 Том 53, 1999 Том 52, 1998 Том 51, 1997

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v74.i7.60
pages 629-640

PROPAGATION AND FOCUSING OF MODES OF DIELECTRIC RESONATORS OF TERAHERTZ RANGE LASERS

O. V. Gurin
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkiv, 61077
А. V. Degtyarev
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkiv, 61022, Ukraine
V. A. Maslov
V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61022, Ukraine
V. A. Svich
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkiv, 61077
V. S. Senyuta
V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61022, Ukraine
A. N. Topkov
V. Karazin Kharkiv National University 4, Svoboda Sq., 61077 Kharkiv, Ukraine

Краткое описание

Cylindrical vectorial beams have a great number of applications, including electron acceleration, material processing, high-resolution metrology, microellipsometry and spectroscopy. Nevertheless, there are practically no results of investigating specific features of their propagation and focusing in the terahertz frequency range. In the paper the physical features of free-space propagation and effects of moderate and sharp focusing of laser radiation beams are investigated both theoretically (based on the Rayleigh-Sommerfeld vector theory) and experimentally (using emission of a waveguide terahertz range (λ = 0.4326 mm) laser). The beams are excited by the modes of a dielectric resonator with a circular waveguide with different spatial polarization of the field. The obtained results improve the knowledge of specific features of propagation in different zones of diffraction and focusing of terahertz range laser beams.


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