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Dynamic properties and optical phase conjugation of two-photon pumped ultrashort blue stimulated emission in a chromophore solution

Guang S. He; Hai-Yan Qin; Qingdong Zheng; Paras N. Prasad; Steffen Jockusch; Nicholas J. Turro; Marlin Halim; Dalibor Sames; Hans Ågren; Sailing He

Title:
Dynamic properties and optical phase conjugation of two-photon pumped ultrashort blue stimulated emission in a chromophore solution
Author(s):
He, Guang S.
Qin, Hai-Yan
Zheng, Qingdong
Prasad, Paras N.
Jockusch, Steffen
Turro, Nicholas J.
Halim, Marlin
Sames, Dalibor
Ågren, Hans
He, Sailing
Date:
Type:
Articles
Department:
Chemistry
Volume:
77
Permanent URL:
Book/Journal Title:
Physical Review A
Abstract:
The dynamic properties of two-photon pumped blue lasing (~470 nm) in the solution of an organic chromophore [2-acetyl-6-(dimethylamino)naphthalene], excited by ~160-fs laser pulses at ~775 nm, have been studied. Both the forward and backward stimulated emission are enhanced by feedback from the reflection at the two optical windows of the solution filled cuvette. Under current experimental conditions, the lasing wavelengths in the forward and backward directions were almost the same, but both blueshifted compared to the fluorescence peak wavelength of the sample solution. The temporal behavior of the lasing output was recorded by a high-speed streak camera system. The multipulse structure and spectral properties of the output lasing are semiquantitatively explained. In addition, excellent optical phase-conjugation properties of the backward stimulated emission were observed; the aberration influences from an aberrator on the backward lasing beam were automatically removed.
Subject(s):
Chemistry
Publisher DOI:
http://dx.doi.org/10.1103/PhysRevA.77.013824
Item views:
253
Metadata:
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