Large spectral birefringence in photoaddressable polymer films

Beth L. Lachut, Stefan A. Maier, Harry A. Atwater, Michiel J.A. De Dood, Albert Polman, Rainer Hagen, Sergej Kostromine

Research output: Contribution to journalArticleResearchpeer-review

42 Citations (Scopus)

Abstract

An azobenzene-functionalized photoaddressable polymer films that has been engineered to maximize birefringence were analyzed. The extinction spectrum of a thin polymer film calculated from transmission and reflectance data obtained via spectroscopic ellipsometry was shown. A writing intensity of 1.5 W cm -2 produced maximal birefringence due to enhancement of polymer-side-chain mobility at room temperature, and the saturation dose was largely dependent on film thickness. It was found that polymer rewriteability is directly correlated to the degree of photobleaching that occurs during writing.

Original languageEnglish
Pages (from-to)1746-1750
Number of pages5
JournalAdvanced Materials
Volume16
Issue number19
DOIs
Publication statusPublished - 4 Oct 2004
Externally publishedYes

Cite this