Infrared spectra recording, high pressure sample holder

Details Infrared spectra recording, high pressure sample holder Infrared spectra recording, high pressure sample holder

1989-12-26

1990-11-13

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250343, 356440, 356244, G01J 504, G01J 506

Patent

active

049703960

ABSTRACT:
An infrared absorption spectra recording, high pressure sample holder comprises a gasket for high compression between two diamond anvils, and an infrared light beam transmitting material partially filling a light passage through the gasket at a position between the two anvils to leave an infrared light beam transmitting, sample cavity adjacent one anvil. The surface of the filling is shaped, e.g. dished so that an infrared light beam passing through the sample will have light paths of different lengths, thereby avoiding optical interference fringes.

REFERENCES:
patent: 3509597 (1970-05-01), Kirk
Welber, Optical Microspectroscopic System for Use With a Diamond Anvil High Pressure Cell to 200 Kilobar, Rev. Sci. Instrum., vol. 47, No. 2, 2/76, pp. 183-186.
Clark et al., A Tetrahedral Anvil Apparatus for Optical Studies Under High Hydrostatic Pressures, J. Phys. E. (GB), vol. 6, No. 1, 1/73, pp. 43-47.

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