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<i>n</i>/d<i>T</i>.

Collinear photothermal deflection spectroscopy with light-scattering samples

Jonathan D. Spear, Richard E. Russo, and Robert J. Silva
Appl. Opt. 29(28) 4225-4234 (1990)

Photothermal deflection spectroscopy and detection

W. B. Jackson, N. M. Amer, A. C. Boccara, and D. Fournier
Appl. Opt. 20(8) 1333-1344 (1981)

Characterization of some suitable deflecting liquids in photothermal deflection spectroscopy

Marco Montecchi and Enrico Masetti
Appl. Opt. 29(28) 3989-3990 (1990)

Measurements of absorption losses in TiO₂ films by a collinear photothermal deflection technique

Mireille Commandré and Emile Pelletier
Appl. Opt. 29(28) 4276-4283 (1990)

Sagnac interferometer for photothermal deflection spectroscopy

Naoyuki Shiokawa, Yuki Mizuno, Harumasa Tsuchiya, and Eiji Tokunaga
Opt. Lett. 37(13) 2655-2657 (2012)