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Park, Jang-Ung
Flexible Nano-electronics & Biotechnology Lab
Research Interests
  • Wireless wearable electronics, flexible electronics, printed electronics, nano-bio interfaces

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

Cited 14 times inthomson ciCited 16 times inthomson ci
Title
Single-step photopatterning of diffraction gratings in highly photosensitive hybrid sol-gel films
Author
Kang, DJPark, Jang-UngBae, BSNishii, JKintaka, K
Keywords
Diffraction efficiency; Energy density; Photopatterning; Surface relief gratings (SRG)
Issue Date
2003-05
Publisher
OPTICAL SOC AMER
Citation
OPTICS EXPRESS, v.11, no.10, pp.1144 - 1148
Abstract
Inorganic-organic hybrid materials prepared by a sol-gel process showed a large photoinduced negative refractive-index change (2x10(-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.
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ISSN
1094-4087
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MSE_Journal Papers
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