Spatial fourier spectrum analysis of an induced thermal lens: A complementary method to thermal dynamic gratings

Thermal dynamic gratings (TDG) have been intensively used since the pioneering work of Pohl in 1973 for the study of thermal conductivity and diffusivity in solids, in liquid crystals, and in micellar liquids. The same thermodynamic quantities can be obtained from the so-called induced thermal lens...

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Veröffentlicht in:	IEEE journal of quantum electronics 1986-08, Vol.22 (8), p.1534-1538
Hauptverfasser:	Dorion, P., Lalanne, J.-R., Pouligny, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Fundamental areas of phenomenology (including applications) Gratings Heat pumps Laser excitation Lenses Liquid crystals Nonlinear optics Optical scattering Optics Other techniques and industries Physics Probes Refractive index Thermal conductivity Thermal lensing
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Beschreibung
Zusammenfassung:	Thermal dynamic gratings (TDG) have been intensively used since the pioneering work of Pohl in 1973 for the study of thermal conductivity and diffusivity in solids, in liquid crystals, and in micellar liquids. The same thermodynamic quantities can be obtained from the so-called induced thermal lens (ITL) technique. This paper reports on what we believe to be a method combining the advantages of ITL and TDG and avoiding their drawbacks. This method is based upon the time-resolved analysis of the transverse Fourier spectrum of an induced thermal lens.
ISSN:	0018-9197 1558-1713
DOI:	10.1109/JQE.1986.1073127