Hyper spectral resolution stimulated Raman spectroscopy with amplified fs pulse bursts  

作　　者：Hongtao Hu Tobias Flöry Vinzenz Stummer Audrius Pugzlys Markus Zeiler Xinhua Xie Aleksei Zheltikov Andrius Baltuška 

机构地区：[1]Photonics Institute,Technische Universität Wien,Gußhausstraße 27-29,Vienna A-1040,Austria [2]SwissFEL,Paul Scherrer Institute,Villigen PSI 5232,Switzerland [3]Institute for Quantum Science and Engineering,Department of Physics and Astronomy,Texas A&M University,College Station,TX 77843,USA

出　　处：《Light(Science & Applications)》2024年第3期566-576,共11页光（科学与应用)（英文版）

基　　金：supported by Austrian Science Fund(FWF)under ZK 9100-N,I 4566 and I 5592;Prof.Zheltikov acknowledges the support from the Welch Foundation(Grant A-1801-20210327).

摘　　要：We present a novel approach for Stimulated Raman Scattering(SRS)spectroscopy in which a hyper spectral resolution and high-speed spectral acquisition are achieved by employing amplified offset-phase controlled fs-pulse bursts.We investigate the method by solving the coupled non-linear Schrödinger equations and validate it by numerically characterizing SRS in molecular nitrogen as a model compound.The spectral resolution of the method is found to be determined by the inverse product of the number of pulses in the burst and the intraburst pulse separation.The SRS spectrum is obtained through a motion-free scanning of the offset phase that results in a sweep of the Raman-shift frequency.Due to high spectral resolution and fast motion-free scanning the technique is beneficial for a number SRS-based applications such as gas sensing and chemical analysis.

关 键 词：COMPOUND SPECTRAL RESOLUTION 

分 类 号：O17[理学—数学]