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Cho, Minhaeng
분자 분광학 및 동력학 연구단
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Coherent Nonlinear Spectroscopy with Multiple Mode-Locked Lasers

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Title
Coherent Nonlinear Spectroscopy with Multiple Mode-Locked Lasers
Author(s)
Minhaeng Cho
Publication Date
2021-10-28
Journal
Journal of Physical Chemistry Letters, v.12, no.42, pp.10284 - 10294
Publisher
American Chemical Society
Abstract
© 2021 American Chemical Society. All rights reserved.Coherent multidimensional spectroscopy has been widely used to study the structure and dynamics of chemical and biological systems. Each ultrashort pulse from a single mode-locked laser is split into multiple pulses by beam splitters. Their arrival times at a given molecular sample are controlled with mechanical time-delay generators for time-resolved measurements of molecular responses. Such nonlinear vibrational, electronic, or vibrational-electronic spectroscopy can now be carried out with multiple mode-locked lasers with highly stabilized repetition and sometimes carrier-envelope-offset frequencies. By precisely controlling the repetition frequencies of multiple mode-locked lasers, one can achieve automatic delay time scanning, known as asynchronous optical sampling, to investigate various relaxation processes associated with photochemical or photobiological phenomena at one sweep in time. In this Perspective, the current developments and applications of multiple mode-locked laser-based techniques to time-resolved nonlinear spectroscopy of chromophores in condensed phases are discussed. The author's perspective on this approach is also presented.
URI
https://pr.ibs.re.kr/handle/8788114/10920
DOI
10.1021/acs.jpclett.1c01492
ISSN
1948-7185
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > 1. Journal Papers (저널논문)
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