Collinear Photothermal Deflection Spectroscopy of Liquid Samples at Varying Temperature

Author:

Spear Jonathan D.1,Silva Robert J.1,Klunder Gregory L.1,Russo Richard E.1

Affiliation:

1. Lawrence Berkeley Laboratory, Berkeley, California 94720 (J.D.S, G.L.K., R.E.R.); and Lawrence Livermore National Laboratory, Livermore, California 94550 (R.J.S.)

Abstract

The method of photothermal beam deflection was demonstrated for measuring the absorption spectrum of an aqueous Nd3+ solution at temperatures between 25°C and 90°C. Changes in the magnitude of the observed deflection can be correlated with the temperature dependence of both the absorptivity of the Nd3+ ions and the physical properties of the solvent, most notably the thermo-optic coefficient d n/d T.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

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