Share Email Print
cover

Optical Engineering • Open Access

Thin-form birefringence quarter-wave plate for lower terahertz range based on silicon grating
Author(s): Banghong Zhang; Yandong Gong; Hui Dong

Paper Abstract

We have developed a thin quarter-wave plate (QWP) operating at low terahertz frequency of 0.51 THz by etching micro-grating on a silicon substrate. The grating period is 30 μm, and the etching depth is 156 μm. Stokes parameters are used to characterize the QWP. The QWP shows a high transmission coefficient of 0.93 and a low polarization dependent loss (PDL) of 1.4 dB at 0.51 THz.

Paper Details

Date Published: 25 February 2013
PDF: 3 pages
Opt. Eng. 52(3) 030502 doi: 10.1117/1.OE.52.3.030502
Published in: Optical Engineering Volume 52, Issue 3
Show Author Affiliations
Banghong Zhang, A*STAR Institute for Infocomm Research (Singapore)
Yandong Gong, Institute for Infocomm Research (Singapore)
Hui Dong, Institute for Infocomm Research (Singapore)


© SPIE. Terms of Use
Back to Top