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Proceedings Paper

Multiphoton absorption studies in aqueous solutions of rhodamine 6G laser dye using transient thermal lens technique
Author(s): C. V. Bindhu; S. S. Harilal; V. Bindu; V. P. N. Nampoori; C. P. G. Vallabhan
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Paper Abstract

Dual beam transient thermal lens studies were carried out in aqueous solutions of rhodamine 6G using 532 nm pulses from a frequency doubled Nd:YAG laser. Analysis of thermal lens signal shows the existence of different nonlinear processes like two photon absorption and three photon absorption phenomena along with one photon absorption as well as excited state absorption. Concentration of the dye in the solution has been found to influence the occurrence of the different processes in a significant way.

Paper Details

Date Published: 29 April 1999
PDF: 6 pages
Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); doi: 10.1117/12.346802
Show Author Affiliations
C. V. Bindhu, Cochin Univ. of Science and Technology (India)
S. S. Harilal, Sree Narayana College (India)
V. Bindu, Cochin Univ. of Science and Technology (India)
V. P. N. Nampoori, Cochin Univ. of Science and Technology (India)
C. P. G. Vallabhan, Cochin Univ. of Science and Technology (India)


Published in SPIE Proceedings Vol. 3729:
Selected Papers from International Conference on Optics and Optoelectronics '98
Kehar Singh; Om Prakash Nijhawan; Arun Kumar Gupta; A. K. Musla, Editor(s)

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