Broadband Waveplate Lenses

Abstract

We report on lenses that operate over the visible wavelength band from 450 nm to beyond 700 nm, and other lenses that operate over a wide region in the near-infrared from 650 nm to beyond 1000 nm. Lenses were recorded in liquid crystal polymer layers only a few micrometers thick, using laser-based photoalignment and UV photopolymerization. Waveplate lenses allowed focusing and defocusing laser beams depending on the sign of the circularity of laser beam polarization. Diffraction efficiency of recorded waveplate lenses was up to 90% and contrast ratio was up to 500:1.

Publication Date

4-4-2016

Publication Title

Optics Express

Volume

24

Issue

7

Number of Pages

7091-7102

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OE.24.007091

Socpus ID

84964543860 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84964543860

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