Broadband photophoretic spectroscopy.
A means for obtaining broadband photophoretic spectra is described. The sensitivity of the technique is found in accordance with radiometric theory to increase markedly with pressure reduction below 1 atm. Noise oscillation induced by radiometric torques is contained through the use of electronic damping. The first broadband spectrum on a single crystallite (approximtely 5 microm) of CdS is presented.
Arnold
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S
Physics Department and Institute for Imaging Science, Polytechnic Institute of New York, Brooklyn, New York 11201, USA.
Amani
Y
Y