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Optical Engineering

Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry
Author(s): C. V. Bindhu; S. S. Harilal; V. P. N. Nampoori; C. P. G. Vallabhan
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Paper Abstract

Thermal diffusivity measurements are carried out in certain organic liquids using the pulsed dual beam thermal lens technique. The 532 nm pulses from a frequency doubled Q-switched Nd:YAG laser are used as the heating source and an intensity stabilized He-Ne laser serves as the probe beam. Experimental determination of the characteristic time constant of the transient thermal lens signal is verified theoretically. Measured thermal diffusivity values are in excellent agreement with literature values.

Paper Details

Date Published: 1 October 1998
PDF: 4 pages
Opt. Eng. 37(10) doi: 10.1117/1.601825
Published in: Optical Engineering Volume 37, Issue 10
Show Author Affiliations
C. V. Bindhu, Cochin Univ. of Science and Technology (India)
S. S. Harilal, 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)

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