Nonlinear Optical Properties of Poled Polymer of Phenoxy Resin   Containing α-Cyano Unsaturated Carboxylate

Sugihara, Okihiro; Nakayama, Hideki; Okamoto, Naoya; Sakakibara, Taro; Taketani, Yutaka

doi:10.1143/jjap.33.l321

Cited by 2 publications

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“…21 This phenomenon of T g temperature increase due to hydrogen bonding formation also appeared in the phenoxy polymer containing the R-cyano unsaturated carboxylate. 22 The T g temperature of the phenoxy polymer containing the R-cyano unsaturated carboxylate was increased to 123 °C. The cutoff wavelength of the synthesized polymer was largely shifted compared with that of the phenoxy polymer due to the introduction of the nitro group.…”

Section: Resultsmentioning

confidence: 99%

Control of Three-Dimensional Refractive Indices by Both Drawing and Poling of Functionalized Phenoxy Side-Chain Polymers

et al. 1996

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The novel functionalized side-chain polymer wherein p-nitrophenylcarbamate is imbedded into phenoxy resin backbone was synthesized. The orientation of the nonlinear optical chromophore of drawn and poled polymers was analyzed by measuring linear and nonlinear optical properties. The chromophore ratio, i.e., the ratio of monomer unit substituted by 4-nitrophenylcarbamate, was varied from about 28% to 100%, and then physical properties of polymers were characterized. The glass transition temperature (T g) increased up to 130 °C with increasing chromophore ratio due to the formation of hydrogen bonding. We demonstrated that the poling and drawing can control both the in-plane and out-of-plane birefringence by using the functionalized side-chain polymer having a large dipole moment μ and linear molecular polarizability α. The measurement of nonlinear optical properties was carried out to confirm the poling condition and orientation of polymer. The ideally uniaxially oriented films were poled parallel to the film-thickness direction by the contact poling method at T g − 17 °C. As the result, the out-of-plane birefringence (ΔnZ -Y , X = drawing direction, Z = film thickness direction) of the drawn and poled polymer films was increased with increasing applied electric voltage and was independent of the draw ratio. It has been shown that most of the drawn and poled polymer films satisfy the relation of refractive indices such as nX > nZ > nY .

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Section: Resultsmentioning

confidence: 99%