Related Experiment Videos
Thermal lens spectrum of organic dyes using optical parametric oscillator
Achamma Kurian1, K P Unnikrishnan, D Sajan George
1International School of Photonics, Cochin University of Science & Technology, Cochin 682022, India.
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
|January 14, 2003
Abstract:
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.