CHOI, DH SONG, SY LIM, SJ PARK, SY KIM, N 2024-01-21T20:42:21Z 2024-01-21T20:42:21Z 2022-01-11 1995-04-01 0379-6779 https://pubs.kist.re.kr/handle/201004/145109 We synthesized alpha-methylstyrene copolymers containing the organic salt chromophore and investigated their second-order nonlinear optical properties in terms of the linear electrooptic coefficient, r(33). The measured electrooptic coefficients of poly [1-[(N-ethylenepiperazyl)-stilbazolium tetraphenyl borate]-N-[(1,1-dimethyl-m-isopropenyl) benzyl]]carbamate-co-methylmethacrylate methylmethacrylate (POLYMER I & II), and poly [1-[(N-ethylenepiperazyl)-stilbazolium tetraphenyl borate]-N-[(1,1-dimethyl-m-isopropenyl)benzyl]]carbamate-co-N-vinylcarbazole (POLYMER III) were determined around 30-40 pm/V at 632 nm wavelength. The observed temporal stabilities of linear electro-optic coefficients of these copolymers were observed much better than that of guest-host system or other NLO side chain polymers due to their outstanding physical properties. English ELSEVIER SCIENCE SA 2ND-ORDER NONLINEAR-OPTICAL PROPERTIES OF NOVEL ALPHA-METHYLSTYRENE COPOLYMERS CONTAINING THE ORGANOBORON SALT DYE CHROMOPHORE IN THE SIDE-CHAIN Article 10.1016/0379-6779(94)03026-3 1 SYNTHETIC METALS, v.71, no.1-3, pp.1731 - 1732 SYNTHETIC METALS 71 1-3 1731 1732 scie scopus A1995QT32600084 2-s2.0-0029289228 Materials Science, Multidisciplinary Physics, Condensed Matter Polymer Science Materials Science Physics Polymer Science Article; Proceedings Paper