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 |
|---|---|
| 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
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Kang, D. J., Park, J. U., Bae, B. S., Nishii, J., & Kintaka, K. (2003). Single-step photopatterning of diffraction gratings in highly photosensitive hybrid sol-gel films. Optics Express, 11(10), 1144-1148. https://doi.org/10.1364/OE.11.001144