Single-step photopatterning of diffraction gratings in highly photosensitive hybrid sol-gel films

Dong Jun Kang, Jang Ung Park, Byeong Soo Bae, Junji Nishii, Kenji Kintaka

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

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 languageEnglish
Pages (from-to)1144-1148
Number of pages5
JournalOptics Express
Volume11
Issue number10
DOIs
Publication statusPublished - 2003 May

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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