Linear optical properties of polydiacetylene para-toluene sulfonate thin films

Citation
A. Feldner et al., Linear optical properties of polydiacetylene para-toluene sulfonate thin films, OPT COMMUN, 195(1-4), 2001, pp. 205-209
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
00304018 → ACNP
Volume
195
Issue
1-4
Year of publication
2001
Pages
205 - 209
Database
ISI
SICI code
0030-4018(20010801)195:1-4<205:LOPOPP>2.0.ZU;2-E
Abstract
We report measurements of the dispersion in the linear optical properties ( linear absorption coefficient and refractive index) of polydiacetylene para -toluene sulfonate (PDA-PTS) single crystal waveguide films prepared by the rmal polymerization of the monomer free floating in solution and subsequent attachment of the film to the substrate. A maximum absorption coefficient > 10(5) cm(-1) at a wavelength of 620 nm is measured for polarization paral lel to the polymer chains, in agreement with previous measurements. The ref ractive index parallel to the polymer axis is significantly lower in these thin films as compared to bulk PDA-PTS crystals, whereas the index perpendi cular to the chains is comparable to that of bulk crystals. Sellmeier param eters describing the dispersion of the refractive index in the near-infrare d spectral range are given. (C) 2001 Published by Elsevier Science B.V.