| Presentation | 1999/6/24 Formation of refractive grating in azo-polymer waveguide and its coupling characteristic. Toshiaki Hattori, Tomoaki Shibata, Shinji Onodera, Toshikuni Kaino, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We report on the formation of refractive grating in azo-polymer waveguide by photobleaching. The grating was formed into azo-polymer core layer by interference of 532 nm wavelength laser lights. We attained a maximum diffraction efficiency of 35 %. From IR spectroscopy, it was confirmed that the interference causes scission of azo-bond. The modulation depth, less than 30 nm, of relief structure observed by AFM was very small. So, the effect of relief structure on the diffraction efficiency is negligible. From these results, we confirmed that the grating obtained here was mainly caused by photobleaching. This grating can be used as an input/output coupler. We observed that coupling efficiency of the grating is dependent on polarization direction of guiding beam. This is considered to be related to anisotropic refractive index change induced by photobleaching in vertical plane of film. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Photobleaching / Interference / Refractive grating / Input / output coupler |
| Paper # | OME99-23 |
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| Conference Information | |
| Committee | OME |
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| Conference Date | 1999/6/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Organic Material Electronics (OME) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Formation of refractive grating in azo-polymer waveguide and its coupling characteristic. |
| Sub Title (in English) | |
| Keyword(1) | Photobleaching |
| Keyword(2) | Interference |
| Keyword(3) | Refractive grating |
| Keyword(4) | Input |
| Keyword(5) | output coupler |
| 1st Author's Name | Toshiaki Hattori |
| 1st Author's Affiliation | Institute for Chemical Reaction Science, Tohoku University:Corporate Research Laboratories, Mitsubishi Rayon Co., Ltd.() |
| 2nd Author's Name | Tomoaki Shibata |
| 2nd Author's Affiliation | Institute for Chemical Reaction Science, Tohoku University |
| 3rd Author's Name | Shinji Onodera |
| 3rd Author's Affiliation | Institute for Chemical Reaction Science, Tohoku University |
| 4th Author's Name | Toshikuni Kaino |
| 4th Author's Affiliation | Institute for Chemical Reaction Science, Tohoku University |
| Date | 1999/6/24 |
| Paper # | OME99-23 |
| Volume (vol) | vol.99 |
| Number (no) | 137 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |