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Laser techniques in high-pressure geophysicsLaser techniques in conjunction with the diamond-anvil cell can be used to study high-pressure properties of materials important to a wide range of problems in earth and planetary science. Spontaneous Raman scattering of crystalline and amorphous solids at high pressure demonstrates that dramatic changes in structure and bonding occur on compression. High-pressure Brillouin scattering is sensitive to the pressure variations of single-crystal elastic moduli and acoustic velocities. Laser heating techniques with the diamond-anvil cell can be used to study phase transitions, including melting, under deep-earth conditions. Finally, laser-induced ruby fluorescence has been essential for the development of techniques for generating the maximum pressures now possible with the diamond-anvil cell, and currently provides a calibrated in situ measure of pressure well above 100 gigapascals.
Document ID
19870063930
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hemley, R. J.
(Carnegie Institution of Washington Washington, DC, United States)
Bell, P. M.
(Carnegie Institution of Washington Washington, DC, United States)
Mao, H. K.
(Carnegie Institution of Washington Washington, DC, United States)
Date Acquired
August 13, 2013
Publication Date
August 7, 1987
Publication Information
Publication: Science
Volume: 237
ISSN: 0036-8075
Subject Category
Lasers And Masers
Accession Number
87A51204
Funding Number(s)
CONTRACT_GRANT: NSF EAR-83-19209
CONTRACT_GRANT: NSF EAR-83-14064
CONTRACT_GRANT: DE-AS05-80ER-10754
CONTRACT_GRANT: NAGW-214
CONTRACT_GRANT: NSF EAR-84-18706
Distribution Limits
Public
Copyright
Other

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