Abstract

Infrared spectra were recorded of organic and inorganic solids with a Fourier transform spectrometer built to operate with a photothermal beam deflection detector. No sample preparation or cells per se is needed to examine milligram quantities of powder. The total absence of sample-containing devices makes it possible to examine portions of the surfaces of objects which are very large in size. Sample heating may occur, so that care must be taken with heat-sensitive materials.

Photothermal deflection spectroscopy and detection

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

Photothermal deflection Fourier transform spectroscopy: a tool for high-sensitivity absorption and dichroism measurements

D. Fournier, A. C. Boccara, and J. Badoz
Appl. Opt. 21(1) 74-76 (1982)

Sagnac interferometer for photothermal deflection spectroscopy

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

Optical ray tracing for crossed beam photothermal deflection spectroscopy

Jeffrey A. Sell
Appl. Opt. 26(2) 336-342 (1987)

Solid State Studies by Means of Fourier Transform Spectroscopy

C. H. Perry, R. Geick, and E. F. Young
Appl. Opt. 5(7) 1171-1177 (1966)