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YbVO4晶体的受激拉曼散射
  • 期刊名称:物理学报, 57(3), 1714-1718, 2008.3.
  • 时间:0
  • 分类:O437.3[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构:[1]山东大学晶体材料国家重点实验室,济南250100
  • 相关基金:国家自然科学基金(批准号:60508010.50590401)、山东省自然科学基金(批准号:Y2004F05)、山东省泰山学者计划资助的课题.
  • 相关项目:几种钨酸、钒酸盐晶体的受激拉曼散射
中文摘要:

采用腔外单次通过方式,研究了一种新型晶体YbVO4的受激拉曼散射.当抽运激光为532nm皮秒脉冲时获得了3级斯托克斯线(558.47nm,587.92nm,620.67nm)和1级反斯托克斯线(507.58nm),测得YbVO4晶体1级斯托克斯受激拉曼散射的稳态增益系数为17.8±0.2cm/GW,受激拉曼散射的整体转换效率达到37%.实现了YbVO4晶体对355nm皮秒激光的受激拉曼散射,观察到1级斯托克斯线(366.11nm),根据抽运阈值得到相应的拉曼增益为29.0±0.3cm/GW.

英文摘要:

With an ultra-cavity single-pass configuration, the stimulated Raman scattering (SRS) of a new crystal YbVO4 was investigated. When the pump source was a 532 nm pico-seconds laser, as many as three Stokes lines (558.47, 587.92 and 620.67 nm) and one anti-tokes line (507.58 nm) were observed. The steady-state Raman gain coefficient for the first Stokes line was measured to be 17.8 ± 0.2 cm/GW, and the total conversion efficiency reached 37%. For the first time, the SRS of YbVO4 crystal for 355 nm pump laser was realized. The first Stokes line (366.11 nm) was observed, and according to the pumping thresholds, the steady-state Raman gain coefficient was determined to be 29.0 ±0.3 cm/GW.

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