Observation of resonance hyper-Raman scattering of all-trans-retinal

Journal of Physical Chemistry A

Volumn 106, Issue 14, 2002, Pages 3599-3604

  Mizuno, Misao ^a   Hamaguchi, Hiro O ^b   Tahara, Tahei ^c  

^a INSTITUTE FOR MOLECULAR SCIENCE   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

^c INST OF PHYS AND CHEMICAL RESEARCH   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ALL-TRANS RETINAL; EXCITATION ENERGY; HYPER-RAMAN SCATTERING; POLYENE;

MOLECULES; ORGANIC COMPOUNDS; PHOTONS; SOLUTIONS; TEMPERATURE;

RAMAN SCATTERING;

EID: 0037061936     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp013174r     Document Type: Article

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18. -2, and the pulse duration was 4 ps. Since the hyper-Raman intensity is proportional to the square of the incident excitation intensity, the intensity of the hyper-Raman scattering generated from unit area per pulse in our setup is expected to be 1600 times higher than theirs. However, our repetition rate (1 kHz) is 5 orders of magnitude lower than theirs (76 MHz), so that the intensity of hyper-Raman scattering generated from unit area per unit time in our setup is estimated to be even ∼50 times weaker than that in their setup. Although comparison for other experimental conditions (the focus size, the detection sensitivity) cannot be made, this estimation suggests that the high hyper-Raman intensity observed in the present measurement is not merely due to the difference in the excitation laser power.
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