TY - JOUR
T1 - Determination of the electro-optical coefficient r33 and refractive index of para-substituted poly(γ-benzyl-l-glutamate) derivatives
AU - Choi, Dong Hoon
AU - Zand, Robert
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1994/1
Y1 - 1994/1
N2 - The electro-optical coefficient r33 and refractive index of films of poly(γ-benzyl-l-glutamate) and the p-nitro, p-fluoro and p-trifluoromethyl derivatives were determined as a way to assess the non-linear optical behaviour of these organic polymers. The p-fluoro-γ-benzyl and p-trifluoromethyl-γ-benzyl ester polymers are new materials synthesized for this study. The electro-optical coefficient r33 = 5.2 × 10-2 pm V-1 for the unsubstituted polymer, 13.9 × 10-2 pm V-1 for the p-nitro polymer, 3.0 × 102 pm V-1 for the p-fluoro polymer, and 1.6 × 10-2 pm V-1 for the p-trifluoromethyl polymer. The refractive indices, at a wavelength of 488 nm, of films of the polymer were determined to be 1.60, 1.61, 1.59, and 1.70, respectively, for the unsubstituted polymer and the p-nitro, p-fluoro, and p-trifluoromethyl derivatives. The frequency dependence of the dielectric constant, from 10 kHz to 4 MHz, for each of the polymer films was also determined. The waveguiding and other properties of each of the polymers were assessed in terms of the polymer structure.
AB - The electro-optical coefficient r33 and refractive index of films of poly(γ-benzyl-l-glutamate) and the p-nitro, p-fluoro and p-trifluoromethyl derivatives were determined as a way to assess the non-linear optical behaviour of these organic polymers. The p-fluoro-γ-benzyl and p-trifluoromethyl-γ-benzyl ester polymers are new materials synthesized for this study. The electro-optical coefficient r33 = 5.2 × 10-2 pm V-1 for the unsubstituted polymer, 13.9 × 10-2 pm V-1 for the p-nitro polymer, 3.0 × 102 pm V-1 for the p-fluoro polymer, and 1.6 × 10-2 pm V-1 for the p-trifluoromethyl polymer. The refractive indices, at a wavelength of 488 nm, of films of the polymer were determined to be 1.60, 1.61, 1.59, and 1.70, respectively, for the unsubstituted polymer and the p-nitro, p-fluoro, and p-trifluoromethyl derivatives. The frequency dependence of the dielectric constant, from 10 kHz to 4 MHz, for each of the polymer films was also determined. The waveguiding and other properties of each of the polymers were assessed in terms of the polymer structure.
KW - electro-optical coefficient
KW - poly(γ-benzyl-l-glutamate)
KW - refractive index
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U2 - 10.1016/0032-3861(94)90044-2
DO - 10.1016/0032-3861(94)90044-2
M3 - Article
AN - SCOPUS:5544226207
SN - 0032-3861
VL - 35
SP - 23
EP - 29
JO - Polymer (United Kingdom)
JF - Polymer (United Kingdom)
IS - 1
ER -