Photorefractive Fe:LiNbO 3 crystal thin plates for optical information processing

Shiuan-Huei Lin, Mei Li Hsieh, Ken-Yuh Hsu, Tai Chiung Hsieh, Sheuan Perng Lin, Tung Sheng Yeh, Long Jang Hu, Chin Hwa Lin, Hong Chang

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The effect of dopant concentration in iron-doped lithium niobate (Fe:LiNbO 3 ) crystal plates on the diffraction efficiency and the recording time constant of the holographic grating was investigated. Results showed that the impurity doping concentration affects the grating diffraction efficiency and the temporal characteristics of the thin crystal plates. Two examples of optical image recognition with these crystal plates were demonstrated. Two different methods in these two cases of optimizing either the temporal response or the diffraction efficiency of the crystal were discussed.

Original languageEnglish
Pages (from-to)1112-1119
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Volume16
Issue number7
DOIs
StatePublished - 1 Jan 1999

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