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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

SrWO4晶体的紫外受激拉曼散射

王正平1， 胡大伟1,2， 张怀金1， 许心光1， 王继扬1， 邵宗书1   

  1. 山东大学 1. 晶体材料国家重点实验室； 2. 国防科学技术研究院， 济南 250100
  • 收稿日期:2008-08-25 修回日期:2008-09-26 出版日期:2009-05-20 网络出版日期:2009-05-20

Ultra-violet Stimulated Raman Scattering of SrWO4 Crystal

WANG Zheng-Ping1, HU Da-Wei1,2, ZHANG Huai-Jin1, XU Xin-Guang1, WANG Ji-Yang1,SHAO Zong-Shu1   

  1. 1. State Key Lab of Crystal Materials, Shandong University, Jinan 250100, China; 2. Institute of Science Technology for National Defence, Shandong University, Jinan 250100, China
  • Received:2008-08-25 Revised:2008-09-26 Published:2009-05-20 Online:2009-05-20

PDF (PC)

1535

被引次数

2

摘要： 使用提拉法生长了高光学质量的SrWO4晶体，尺寸为22mm×40mm，重72.3g.测量了SrWO4 晶体的透过光谱，其短波截止边为263nm，长波截止边大于3200nm，因此可在较宽波长范围内实现拉曼频移.采用无腔的单次通过方式，在SrWO4晶体中实现了紫外光激发的受激拉曼散射.当抽运光为355nm皮秒激光脉冲时获得了3级斯托克斯谱线（366.44、379.25、392.98nm），其中一级斯托克斯线的抽运阈值仅为169.76MW/cm2，相应的拉曼增益高达49.09cm/GW.实验表明，SrWO4具有透光波段宽、抗光损伤能力强、拉曼阈值低、增益系数大等优点，在紫外激光的拉曼变频方面表现出良好应用前景.

关键词: 受激拉曼散射, 增益系数, SrWO4晶体, 紫外激光

Abstract: SrWO4 crystal with high optical quality was grown by Czochralski pulling method. The crystal sizes reached 22mm×40mm, and the weight was 72.3g. The transmittance range of SrWO4 crystal was measured to be 263-3200nm. By the singlepass configuration, ultraviolet stimulated Raman scattering (SRS) of SrWO4 crystal was realized. When the pump source was a 355nm picoseconds laser, three Stokes lines （366.44, 379.25, 392.98nm）were obtained. The pump threshold of the first Stokes line was only 169.76MW/cm2, and the corresponding Raman gain was 49.09cm/GW. The results show that SrWO4 crystal possesses many advantages such as wide transmittance spectrum, high optical damage threshold, low Raman pump threshold, and large gain coefficient, so the material will have good applications in Raman frequency shifting of ultra-violet laser.

Key words: stimulated Raman scattering, gain coefficient, SrWO4 crystal, ultra-violet laser

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