Generation of tunable sub-45 femtosecond pulses by noncollinear four-wave mixing.
Generation of tunable sub-45 femtosecond pulses by noncollinear four-wave mixing.
复制标题
通过非共线四波混频生成可调谐亚 45 飞秒脉冲。
DOI：
10.1364/ol.38.000486
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发表时间：
2013
期刊：
影响因子：
3.6
通讯作者：
F. Noack
中科院分区：
文献类型：
--
作者：
Masood Ghotbi;P. Trabs;M. Beutler;F. Noack
报道了可在146-151 nm光谱范围内以1 kHz重复频率调谐的亚45ps真空紫外(VUV)脉冲的产生。利用掺钛蓝宝石激光器的三次谐波与红外光学参量放大器的信号波长(ω(VUV)=2ω(TH)-ω(IR))之间的非共线差频四波混频产生脉冲。产生的真空紫外光脉冲的能量高达90nJ。脉冲宽度的测量是通过利用氙气中的泵浦-探测电离实现真空紫外光脉冲与激光基波波长之间的互相关来实现的。
Generation of sub-45 fs vacuum UV (VUV) pulses tunable across the spectral range of 146-151 nm at 1 kHz repetition rate is reported. The pulses are produced using noncollinear difference-frequency four-wave mixing between the third-harmonic of an amplified Ti:sapphire laser and the signal wavelength of an infrared optical parametric amplifier (ω(VUV)=2ω(TH)-ω(IR)) in krypton and argon. The generated VUV pulses have energies as high as 90 nJ. Pulse duration measurements are realized by cross correlation between the VUV pulses and the laser fundamental wavelength using pump-probe ionization in xenon.