Thermal lens spectrum of organic dyes using optical parametric oscillator.
The wavelength dependence of thermal lens signal from organic dyes are studied using dual beam thermal lens technique. It is found that the profile of thermal lens spectrum widely differ from the conventional absorption spectrum in the case of rhodamine B unlike in the case of crystal violet. This is explained on the basis of varying contribution of nonradiative relaxations from the excited vibronic levels.
Kurian
Achamma
A
International School of Photonics, Cochin University of Science & Technology, Cochin 682022, India.
Unnikrishnan
K P
KP
George
D Sajan
DS
Gopinath
Pramod
P
Nampoori
V P N
VP
Vallabhan
C P G
CP
D004396:Coloring Agents / Q000737:chemistry*; D005840:Gentian Violet / Q000737:chemistry; D000432:Methanol; D055095:Optics and Photonics / Q000295:instrumentation; D012235:Rhodamines / Q000737:chemistry; D012997:Solvents; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry
D004396:Coloring Agents; D012235:Rhodamines; D012997:Solvents; D005840:Gentian Violet; C029773:rhodamine B; D000432:Methanol