Abstract
Inorganic-organic hybrid materials prepared by a sol-gel process showed a large photoinduced negative refractive-index change (2×10-2) and a volume change. Diffraction gratings were made directly by irradiation with a KrF excimer laser (248 nm) through a phase mask without any etching process. The dependence of diffraction efficiency on irradiation conditions was investigated. The maximum diffraction efficiency, measured by the Littrow configuration with a He-Ne laser (633 nm), was 3.4% in reflection mode.
Original language | English |
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Pages (from-to) | 1144-1148 |
Number of pages | 5 |
Journal | Optics Express |
Volume | 11 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2003 May |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics