Tracking coherent population transfer and thermal population relaxation in condensed system by broad-band transient grating spectroscopy

Wei Zhang; Xiaosong Liu; Honglin Wu; Yunfei Song; Weilong Liu; Yanqiang Yang

doi:10.1088/1361-6455/aab1aa

Tracking coherent population transfer and thermal population relaxation in condensed system by broad-band transient grating spectroscopy

Wei Zhang
, Xiaosong Liu
, Honglin Wu
, Yunfei Song
, Weilong Liu
, Yanqiang Yang

School of Physics

Harbin Institute of Technology
China Academy of Engineering Physics

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Broad-band transient grating (BB-TG) spectroscopy was proposed to track both coherent population transfer (CPT) and thermal population relaxation processes in a condensed system of solvated molecules in solution (Rhodamine101 in methanol). A broad band around 1500 cm^-1 and a relative narrow band near 2900 cm^-1 emerge in TG and transient absorption contour plots when pump and probe pulses overlap in the sample. The experimental results matched well with the vibrational modes of Rhodamine101 that were obtained by theoretical calculation. In addition, it was found that the population of CPT particles can be evaluated quantitatively through the intensity of the TG signal.

Original language	English
Article number	075101
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	51
Issue number	7
DOIs	https://doi.org/10.1088/1361-6455/aab1aa
State	Published - 19 Mar 2018

Keywords

coherent population transfer
molecular dynamics
transient grating
ultrafast spectroscopy

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10.1088/1361-6455/aab1aa

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title = "Tracking coherent population transfer and thermal population relaxation in condensed system by broad-band transient grating spectroscopy",

abstract = "Broad-band transient grating (BB-TG) spectroscopy was proposed to track both coherent population transfer (CPT) and thermal population relaxation processes in a condensed system of solvated molecules in solution (Rhodamine101 in methanol). A broad band around 1500 cm-1 and a relative narrow band near 2900 cm-1 emerge in TG and transient absorption contour plots when pump and probe pulses overlap in the sample. The experimental results matched well with the vibrational modes of Rhodamine101 that were obtained by theoretical calculation. In addition, it was found that the population of CPT particles can be evaluated quantitatively through the intensity of the TG signal.",

keywords = "coherent population transfer, molecular dynamics, transient grating, ultrafast spectroscopy",

author = "Wei Zhang and Xiaosong Liu and Honglin Wu and Yunfei Song and Weilong Liu and Yanqiang Yang",

note = "Publisher Copyright: {\textcopyright} 2018 IOP Publishing Ltd.",

year = "2018",

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doi = "10.1088/1361-6455/aab1aa",

language = "英语",

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TY - JOUR

T1 - Tracking coherent population transfer and thermal population relaxation in condensed system by broad-band transient grating spectroscopy

AU - Zhang, Wei

AU - Liu, Xiaosong

AU - Wu, Honglin

AU - Song, Yunfei

AU - Liu, Weilong

AU - Yang, Yanqiang

PY - 2018/3/19

Y1 - 2018/3/19

N2 - Broad-band transient grating (BB-TG) spectroscopy was proposed to track both coherent population transfer (CPT) and thermal population relaxation processes in a condensed system of solvated molecules in solution (Rhodamine101 in methanol). A broad band around 1500 cm-1 and a relative narrow band near 2900 cm-1 emerge in TG and transient absorption contour plots when pump and probe pulses overlap in the sample. The experimental results matched well with the vibrational modes of Rhodamine101 that were obtained by theoretical calculation. In addition, it was found that the population of CPT particles can be evaluated quantitatively through the intensity of the TG signal.

AB - Broad-band transient grating (BB-TG) spectroscopy was proposed to track both coherent population transfer (CPT) and thermal population relaxation processes in a condensed system of solvated molecules in solution (Rhodamine101 in methanol). A broad band around 1500 cm-1 and a relative narrow band near 2900 cm-1 emerge in TG and transient absorption contour plots when pump and probe pulses overlap in the sample. The experimental results matched well with the vibrational modes of Rhodamine101 that were obtained by theoretical calculation. In addition, it was found that the population of CPT particles can be evaluated quantitatively through the intensity of the TG signal.

KW - coherent population transfer

KW - molecular dynamics

KW - transient grating

KW - ultrafast spectroscopy

UR - https://www.scopus.com/pages/publications/85044416275

U2 - 10.1088/1361-6455/aab1aa

DO - 10.1088/1361-6455/aab1aa

M3 - 文章

AN - SCOPUS:85044416275

SN - 0953-4075

VL - 51

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

IS - 7

M1 - 075101

ER -

Tracking coherent population transfer and thermal population relaxation in condensed system by broad-band transient grating spectroscopy

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Keywords

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