Large photoinduced refractive index changes of a polymer containing photochromic norbornadiene groups

Journal Article · Sun Jun 01 00:00:00 EDT 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.118750· OSTI ID:575885

Kinoshita, K; Horie, K ^[1]; Morino, S ^[2]; Nishikubo, T ^[3]

---

1. Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113 (Japan)
2. Photofunctional Chemistry Division, Research Laboratory of Resources Utilization, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226 (Japan)
3. Department of Applied Chemistry, Faculty of Engineering, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221 (Japan)

We prepared a polymer containing pendant norbornadiene (NBD) moieties, P(MMA{sub 0.43}-co-GMA{sub 0.57}-PNCA), and measured absorbance and refractive index spectra before and after photoisomerization of norbornadiene moieties. Large photoinduced refractive index changes of {approximately}0.01 were obtained at 632.8 nm, the region far from the absorption band. A quantum yield of 0.50 was obtained for the photoisomerization of NBD moieties in this polymer. These values are sufficient to make efficient channel waveguides by photoisomerization. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 575885
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 22 Vol. 70; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
40 CHEMISTRY
ABSORPTION SPECTRA
ISOMERIZATION
PHOTOCHEMISTRY
PHOTOCHROMIC MATERIALS
PMMA
QUANTUM EFFICIENCY
REFRACTIVE INDEX