NONPARAXIAL EFFECTS IN LENSACON OPTICAL SYSTEMS
N. L. Kazanskii, S. N. Khonina
Image Processing Systems Institute, Russian Academy of Sciences, ul. Molodogvardeiskaya 151, Samara 443001
Keywords: линзакон, непараксиальный режим, преодоление дифракционного предела, коническая фокальная область, дробный аксикон, модовые и поляризационные преобразования, lensacon, nonparaxial mode, overcoming diffraction limit, conical focal domain, fractional axicon, modal and polarization transformation
Abstract
This paper presents a short analysis of papers devoted to the nonparaxial effects arising from the use of the lensacon proposed by Koronkevich with coworkers in 1993, as well as its analogs in a substantially nonparaxial mode. In this case, accounting for the vector character of electromagnetic radiation is required, allowing new effects to be detected, which, in turn, provides an additional impetus to expand the range of applications of the lensacon.
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