Generation of Far‐Infrared Radiation by Picosecond Light Pulses in LiNbO3
Generation of Far‐Infrared Radiation by Picosecond Light Pulses in LiNbO3
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DOI：
10.1063/1.1653935
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发表时间：
1971-11
影响因子：
4
通讯作者：
Kei-Hsiung Yang;P. Richards;Yaochun Shen
中科院分区：
文献类型：
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作者：
Kei-Hsiung Yang;P. Richards;Yaochun Shen
我们已经观察到由皮秒脉冲在LiNbO 3中产生的远红外辐射，具有几种不同的相位匹配条件。通过远红外迈克尔逊干涉仪和法布里-珀罗干涉仪分析的输出光谱与理论计算吻合得很好。从这些测量中推导出的激光脉冲宽度约为2皮秒，而从双光子荧光测量中获得的激光脉冲宽度为5皮秒。
We have observed far‐infrared radiation generated by picosecond pulses in LiNbO3 with several different phase‐matching conditions. The output spectra, analyzed by a far‐infrared Michelson interferometer and by a Fabry‐Perot interferometer, agree well with theoretical calculations. The laser pulsewidth deduced from these measurements was about 2 psec in comparison with 5 psec obtained from two‐photon fluorescence measurements.