Measurement of Thermal Diffusivity of Nonlinear Optical Polymer Thin Films Using Photoacoustic Method

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Takao Tsukada²  Masahide Sato¹  Hiroaki Kobayashi²  Mitsunori Hozawa²  Kin-ichi Yoshida²  Masaki Kubo¹ 

[1] Department of Chemical Engineering, Tohoku University;Institute for Chemical Reaction Science, Tohoku University

关键词: Thermal Diffusivity;    Nonlinear Optical Polymer;    Photoacoustic Method;    Thin Film;    Heat Transfer;   

DOI  :  10.1252/jcej.33.918

来源: Maruzen Company Ltd

【 摘 要 】

References(10)We developed an apparatus to measure the thermal diffusivity of a nonlinear optical (NLO) polymer thin film where the measurement was based on the photoacoustic method. The validity of the measured data was verified by comparison with published ones for Ti and Pt metallic foils. The thermal diffusivity of a polymer thin film, polymethyl methacrylate (PMMA) with Disperse Red 1 (DR1) chromophore side group, is independent of the thickness and the percentage of the chromophore, and is almost constant at 6 × 10–8 m2/s. The thermal diffusivity of the electrically poled NLO polymer thin film is independent of the intensity of the applied electric field.

【 授权许可】

Unknown