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Compact design for two-dimensional electronic spectroscopy_上海光学精密机械研究所

上海光学精密机械研究所 免费考研网/2018-05-06

外文题目: Compact design for two-dimensional electronic spectroscopy
作者: Huang, Zheng; Wang, Peng; Shen, Xiong; Yan, Tian-Min; Zhang, Yizhu; Liu, Jun
刊名: Laser Phys.
年: 2016 卷: 26 期: 3 文章编号:35403
英文关键词:
nonlinear optical spectroscopy; two-dimensional electronic spectroscopy; sub-wavelength phase stability; spectral interferometry; self-referencing spectral interferometry (SRSI)
SPECTRAL INTERFEROMETRY; FEMTOSECOND SPECTROSCOPY; EXCITATION; COMPLEX; PULSE
英文摘要:
We present a passively phase-stabilized two-dimensional electronic spectroscopy (2DES) with a compact size, and the ease of implementation and maintenance. Our design relies on a mask beam-splitter with four holes to form non-collinear box geometry, and a homebuilt stacked retroreflector, which introduces the phase-locked pulse sequence, remedying the instability of commonly used translation stages. The minimized size of the setup suppresses the influences of optical path-length fluctuations during measurements, improving the phase stability and precise timing of pulse sequences. In our 2DES, only few conventional optical components are used, which make this sophisticated instrumentation convenient to establish and particularly easy to conduct alignment. In data analysis, the self-referencing spectral interferometry (SRSI) method is first introduced to extract the complex-valued signal from spectral interferometry in 2DES. The alternative algorithm achieves the improvement of the signal-to-noise ratio (SNR) and considerable reduction of data acquisition time. The new setup is suitable over a tunable range of spectroscopic wavelength, from ultraviolet (UV) to the near-infrared (NIR) regime, and for ultra-broadband bandwidth, few-cycle laser pulses.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1088/1054-660X/26/3/035403


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