Articles

Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry

[+] Author Affiliations
C. V. Bindhu, S. S. Harilal, V. P. N. Nampoori, C. P. G. Vallabhan

Cochin University of Science and Technology, International School of Photonics, Laser Division, Cochin?682?022, India

Opt. Eng. 37(10), 2791-2794 (Oct 01, 1998). doi:10.1117/1.601825
History: Received Dec. 4, 1997; Revised Apr. 17, 1998; Accepted Apr. 18, 1998
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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-switchedNd: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. © 1998 Society of Photo-Optical Instrumentation Engineers.

© 1998 Society of Photo-Optical Instrumentation Engineers

Topics

Calorimetry ; Lenses

Citation

C. V. Bindhu ; S. S. Harilal ; V. P. N. Nampoori and C. P. G. Vallabhan
"Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry", Opt. Eng. 37(10), 2791-2794 (Oct 01, 1998). ; http://dx.doi.org/10.1117/1.601825


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