Photoassisted poling vs thermal poling in copolymides for second-order nonlinear optics

Jerome Chauvin; Keitaro Nakatani; Jacques A. Delaire; C. Marestin; Regis Mercier; Bernard Sillion

doi:10.1117/12.264182

23 January 1997 Photoassisted poling vs thermal poling in copolymides for second-order nonlinear optics

Jerome Chauvin, Keitaro Nakatani, Jacques A. Delaire, C. Marestin, Regis Mercier, Bernard Sillion

Proceedings Volume 2998, Photosensitive Optical Materials and Devices; (1997) https://doi.org/10.1117/12.264182
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

Thin films of new side-chain polyimides bearing disperse red one (DR1) groups have been poled by the corona technique assisted by visible irradiation at low temperatures, far below the high glass transition temperature (T_g) of these polymers. The second harmonic generation (SHG) signal reached at the end of this photoassisted poling process is higher than with thermal poling. Furthermore, by a simple method based on absorption measurements with polarized light at variable incidence, it has been shown that the degradation ratio of the chromophores is much lower with photoassisted poling than with thermal poling at a temperature near T_g.

Citation Download Citation

Jerome Chauvin, Keitaro Nakatani, Jacques A. Delaire, C. Marestin, Regis Mercier, and Bernard Sillion "Photoassisted poling vs thermal poling in copolymides for second-order nonlinear optics", Proc. SPIE 2998, Photosensitive Optical Materials and Devices, (23 January 1997); https://doi.org/10.1117/12.264182

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