TY - JOUR
T1 - Molecular Orientation-Induced Second-Harmonic Generation
T2 - Deciphering Different Contributions Apart
AU - Beer, Amit
AU - Damari, Ran
AU - Chen, Yun
AU - Fleischer, Sharly
N1 - Publisher Copyright:
© 2022 The Authors. Published by American Chemical Society.
PY - 2022/6/16
Y1 - 2022/6/16
N2 - We demonstrate and explore an all-optical technique for direct monitoring of the orientation dynamics in gas-phase molecular ensembles. The technique termed "MOISH"utilizes the transiently lifted inversion symmetry of polar gas media and provides a sensitive and spatially localized probing of the second-harmonic generation signal that is directly correlated with the orientation of the gas. Our experimental results reveal selective electronic and nuclear dynamical contributions to the overall nonlinear optical signal and decipher them apart using the "reporter gas"approach. "MOISH"provides new crucial means for implementing advanced coherent rotational control via concerted excitation by both terahertz and optical fields.
AB - We demonstrate and explore an all-optical technique for direct monitoring of the orientation dynamics in gas-phase molecular ensembles. The technique termed "MOISH"utilizes the transiently lifted inversion symmetry of polar gas media and provides a sensitive and spatially localized probing of the second-harmonic generation signal that is directly correlated with the orientation of the gas. Our experimental results reveal selective electronic and nuclear dynamical contributions to the overall nonlinear optical signal and decipher them apart using the "reporter gas"approach. "MOISH"provides new crucial means for implementing advanced coherent rotational control via concerted excitation by both terahertz and optical fields.
UR - http://www.scopus.com/inward/record.url?scp=85131964231&partnerID=8YFLogxK
U2 - 10.1021/acs.jpca.2c03237
DO - 10.1021/acs.jpca.2c03237
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C2 - 35654048
AN - SCOPUS:85131964231
SN - 1089-5639
VL - 126
SP - 3732
EP - 3738
JO - Journal of Physical Chemistry A
JF - Journal of Physical Chemistry A
IS - 23
ER -