| Oval-Shaped Spectrogram Formed by Randomly Oriented Refractive Index Gratings in Photorefractive Crystals |
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| 引用本文： | SHE Weilong YU Zhenxin(State Key Laboratory of Ultrafast Laser Spectroscopy,Zhongshan University,Guangzhou 510275,China)LEE Wingkee(Department of Physics,The Chinese University of Hong Kong,Shatin,N.T.,Hong Kong,China)Received July 1. Oval-Shaped Spectrogram Formed by Randomly Oriented Refractive Index Gratings in Photorefractive Crystals[J]. Chinese Journal of Lasers, 1998, 7(1): 35-40 |
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| 作者姓名： | SHE Weilong YU Zhenxin(State Key Laboratory of Ultrafast Laser Spectroscopy Zhongshan University Guangzhou 510275 China)LEE Wingkee(Department of Physics The Chinese University of Hong Kong Shatin N.T. Hong Kong China)Received July 1 |
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| 作者单位： | SHE Weilong YU Zhenxin(State Key Laboratory of Ultrafast Laser Spectroscopy，Zhongshan University，Guangzhou 510275，China)LEE Wingkee(Department of Physics，The Chinese University of Hong Kong，Shatin，N.T.，Hong Kong，China)Received July 1 |
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| 基金项目： | Supported by Strategic Grant from the Chinese University of Hong Kong |
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| 摘 要： | Ｏｖａｌ┐ＳｈａｐｅｄＳｐｅｃｔｒｏｇｒａｍＦｏｒｍｅｄｂｙＲａｎｄｏｍｌｙＯｒｉｅｎｔｅｄＲｅｆｒａｃｔｉｖｅＩｎｄｅｘＧｒａｔｉｎｇｓｉｎＰｈｏｔｏｒｅｆｒａｃｔｉｖｅＣｒｙｓｔａｌｓＳＨＥＷｅｉｌｏｎｇＹＵＺｈｅｎｘｉｎ（ＳｔａｔｅＫｅｙＬａ...
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| 关 键 词： | ovalshaped spectrogram refractive index grating photorefractive crystal |
| 收稿时间： | 1997-07-16 |
Oval-Shaped Spectrogram Formed by Randomly Oriented Refractive Index Gratings in Photorefractive Crystals |
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| Abstract: | The oval-shaped spectrogram can be formed by diffraction of light waves from randomly oriented photorefractive gratings in a crystal, along directions in which phase matching conditions are satisfied. The gratings are formed by amplification of scattered noise by two wave coupling. The experimental results are in good agreement with the theoretical analysis. A method for measuring the refractive indices of the birefringent photorefractive crystal is proposed. |
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| Keywords: | oval-shaped spectrogram refractive index grating photorefractive crystal |
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