Optical Spectral Filter Based on a Deep Periodic Relief Reflection Structure

Abstract: A filter based on a reflecting periodic relief diffraction structure with a relief depth of greater than one half of optical wavelength is proposed. The input-output power transfer coefficient is studied versus the optical wavelength. The filter can be configured to completely suppress radiation at a specified wavelength, and the spectral characteristic can be changed due to variation in the angle of incidence of the input beam. A method for calculation of the filter parameters is proposed, and a filter that suppresses radiation at a specified wavelength and transmits radiation at another wavelength is calculated. The filter is easy-to-implement in both visible and IR spectral ranges. © 2020, Pleiades Publishing, Inc.

Авторы
Номер выпуска
2
Язык
Английский
Страницы
205-210
Статус
Опубликовано
Том
65
Год
2020
Организации
  • 1 Russian University of Peoples’ Friendship (RUDN University), Moscow, 117198, Russian Federation
Ключевые слова
deep diffraction periodic structure; optical signal filter; optical spectral filter; spatial filter
Дата создания
02.11.2020
Дата изменения
02.11.2020
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/64963/