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Optical Engineering

Negative dispersion retarder with a wide viewing angle made by stacking reactive mesogen on a polymethylmethacrylate film
Author(s): Seungbin Yang; Hyojin Lee; Ji-Hoon Lee
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Paper Abstract

We experimentally demonstrated a retarder with a wide field-of-view as well as a negative dispersion (ND) of birefringence. We stacked reactive mesogen, which has a positive birefringence, and polymethylmethacrylate, which has a negative birefringence. The out-of-plane retardation (Rth) of the stacked film was 6 nm. This value is about a tenth of that of a general retarder and demonstrates a small change in the retardation (Re) at an oblique viewing angle. The stacked film showed an ND of the birefringence, where Re(450  nm)/Re(550  nm)=0.818 and Re(650  nm)/Re(550  nm)=1.110. The dispersion properties were close to the ideal dispersion of an achromatic retarder and showed a small Re-dependence on the wavelength of light.

Paper Details

Date Published: 18 February 2016
PDF: 6 pages
Opt. Eng. 55(2) 027106 doi: 10.1117/1.OE.55.2.027106
Published in: Optical Engineering Volume 55, Issue 2
Show Author Affiliations
Seungbin Yang, Chonbuk National Univ. (Korea, Republic of)
Hyojin Lee, Chonbuk National Univ. (Korea, Republic of)
Ji-Hoon Lee, Chonbuk National Univ. (Korea, Republic of)

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