Open AccessLENS QUASI-OPTICAL TRANSMISSION LINE WITH OPTICAL CONTRAST CLOSE TO 1
Author(s) -
Oleg Minin Oleg Minin,
Igor Minin Igor Minin
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-8-93-99
Subject(s) - optics , lens (geology) , refractive index , focal length , materials science , wavelength , gradient index optics , laser , optical axis , contrast (vision) , reflection (computer programming) , physics , computer science , programming language
The quasi-optical transmission line with optical contrast close to 1 is considered. Such devices can be used to study the effect of laser radiation on biological media, in microwave, terahertz, optical and X-ray wavelength ranges, as well as in acoustics. The use of composite refractive lenses, which are a set of identical spherical lenses arranged one after another on the same optical axis and with a refractive index close to one, reduces the loss of reflection in such a lens. Reducing the focal length in such refractive lenses is possible by increasing the number of refractive surfaces.