Research output: Contribution to journal › Article › peer-review
Resonant four-wave mixing spectra: A fresh look at photodissociation dynamics. / Kouzov, A.; Radi, P.; Maksyutenko, P.; Kozlov, D.
In: Journal of Physics: Conference Series, Vol. 548, No. 1, 2014, p. 012016_1-5.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Resonant four-wave mixing spectra: A fresh look at photodissociation dynamics
AU - Kouzov, A.
AU - Radi, P.
AU - Maksyutenko, P.
AU - Kozlov, D.
PY - 2014
Y1 - 2014
N2 - Frequency- and polarization-resolved degenerate resonant four-wave mixing is used for the first time to study the rotational anisotropy of the OH radicals produced by photolysis of H2O2 by a plane-polarized laser radiation at 266 nm. For that, a flexible polarization setup is designed to directly isolate the rotationally anisotropic signals in the A2Σ+X2Π(0; 0) OH vibronic band. The results are quantitatively interpreted by using the line-space approach and accounting for all possible correlations between the electric field ED of the photolysis laser, the recoil velocity v and the angular momentum J of nascent particles. In so doing, the resonance amplitudes are decoupled into products of the polarization factors, the Doppler-broadened profiles and the Einstein B-coefficients. The anisotropic signals have characteristic shapes of well resolved Doppler doublets providing a direct evidence of translational helicity of the nascent OH radicals, a hitherto exprementally inaccessible key characteristic of the photo
AB - Frequency- and polarization-resolved degenerate resonant four-wave mixing is used for the first time to study the rotational anisotropy of the OH radicals produced by photolysis of H2O2 by a plane-polarized laser radiation at 266 nm. For that, a flexible polarization setup is designed to directly isolate the rotationally anisotropic signals in the A2Σ+X2Π(0; 0) OH vibronic band. The results are quantitatively interpreted by using the line-space approach and accounting for all possible correlations between the electric field ED of the photolysis laser, the recoil velocity v and the angular momentum J of nascent particles. In so doing, the resonance amplitudes are decoupled into products of the polarization factors, the Doppler-broadened profiles and the Einstein B-coefficients. The anisotropic signals have characteristic shapes of well resolved Doppler doublets providing a direct evidence of translational helicity of the nascent OH radicals, a hitherto exprementally inaccessible key characteristic of the photo
KW - Four-wave mixing
KW - photodissociation
U2 - doi:10.1088/1742-6596/548/1/012016
DO - doi:10.1088/1742-6596/548/1/012016
M3 - Article
VL - 548
SP - 012016_1-5
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
ER -
ID: 5754363