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Dual-comb spectroscopy of molecular electronic transitions in condensed phases

Authors
Cho, ByungmoonYoon, Tai HyunCho, Minhaeng
Issue Date
16-3월-2018
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW A, v.97, no.3
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW A
Volume
97
Number
3
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/76712
DOI
10.1103/PhysRevA.97.033831
ISSN
2469-9926
Abstract
Dual-comb spectroscopy (DCS) utilizes two phase-locked optical frequency combs to allowscanless acquisition of spectra using only a single point detector. Although recent DCS measurements demonstrate rapid acquisition of absolutely calibrated spectral lines with unprecedented precision and accuracy, complex phase-locking schemes and multiple coherent averaging present significant challenges for widespread adoption of DCS. Here, we demonstrate Global Positioning System (GPS) disciplined DCS of a molecular electronic transition in solution at around 800 nm, where the absorption spectrum is recovered by using a single time-domain interferogram. We anticipate that this simplified dual-comb technique with absolute time interval measurement and ultrabroad bandwidth will allow adoption of DCS to tackle molecular dynamics investigation through its implementation in time-resolved nonlinear spectroscopic studies and coherent multidimensional spectroscopy of coupled chromophore systems.
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