ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
We report the combination of a high-pressure sample chamber and a stable, nonscanning, angle-dispersive Fabry–Perot interferometer allowing the rapid measurement of inelastic light scattering from acoustic phonon modes in solid and liquid samples at high pressure. The primary components of the apparatus are a (i) narrow frequency gas ion laser, (ii) a solid or air-spaced etalon, (iii) a multichannel charge coupled device detector, and (iv) a large volume, high-pressure cell. The fundamental principle of this spectrometer is based on the angular dispersion of light through an etalon, whereupon the multiple-order frequency dispersed spectrum can be acquired with an array detector. Typical acquisition times are less than 1 s using low to moderate laser power. © 2002 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1445869
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