THz diffractive focusing structures for broadband application

Karolina Liebert, Martyna Rachoń, Jarosław Bomba, Artur Sobczyk, Przemysław Zagrajek, Maciej Sypek, Jarosław Suszek, Agnieszka Siemion

Abstract


Analysis of optical structures that can work for broadband range of THz radiation is the aim of this article. Such structures can be designed as kinoforms of higher order or elements with extended depth of focus, like axicons or light sword elements. The theoretical and experimental comparison of different optical elements for three significantly different frequencies is performed.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
Published in cooperation with SPIE

ISSN: 2080-2242