Clean sub-8-fs pulses at 400 nm generated by a hollow fiber compressor for ultraviolet ultrafast pump-probe spectroscopy.
Clean sub-8-fs pulses at 400 nm generated by a hollow fiber compressor for ultraviolet ultrafast pump-probe spectroscopy.
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DOI：
10.1364/oe.18.020645
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发表时间：
2010-09
期刊：
影响因子：
3.8
通讯作者：
Jun Liu;K. Okamura;Y. Kida;T. Teramoto;Takayoshi Kobayashi
中科院分区：
文献类型：
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作者：
Jun Liu;K. Okamura;Y. Kida;T. Teramoto;Takayoshi Kobayashi
利用空心光纤的光谱展宽和棱镜对与变形镜系统相结合的色散补偿技术，获得了400 nm、7.5fs、能量小于3%的卫星光脉冲。作为一个例子，这种稳定和清洁的脉冲被用来研究超快泵浦探测光谱的光敏黄蛋白。此外，自衍射信号显示出平滑和加宽的激光光谱，并有望具有进一步清洁的激光脉冲，这使得它在未来的超快泵浦-探测光谱学中更有用。
Clean 7.5 fs pulses at 400 nm with less than 3% energy in tiny satellite pulses were obtained by spectral broadening in a hollow fiber and dispersive compensating using a prism pair together with a deformable mirror system. As an example, this stable and clean pulse was used to study the ultrafast pump-probe spectroscopy of photoactive yellow protein. Moreover, the self-diffraction signal shows a smoothed and broadened laser spectrum and is expected to have a further clean laser pulse, which makes it more useful in the ultrafast pump-probe spectroscopy in the future.