Laser heating in diamond anvil cells: developments in pulsed and continuous techniques

Developments in continuous and pulsed laser‐heating techniques, and finite‐element calculations for diamond anvil cell experiments are reported. The methods involve the use of time‐resolved (5 ns gated) incandescent light temperature measurements to determine the time dependence of heat fluxes, whil...

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Bibliographic Details
Published inJournal of synchrotron radiation Vol. 16; no. 6; pp. 769 - 772
Main Authors Goncharov, Alexander F., Montoya, Javier A., Subramanian, Natarajan, Struzhkin, Viktor V., Kolesnikov, Anton, Somayazulu, Maddury, Hemley, Russell J.
Format Journal Article
LanguageEnglish
Published 5 Abbey Square, Chester, Cheshire CH1 2HU, England International Union of Crystallography 01.11.2009
Subjects
Diamond anvil cell
Laser heating
Pulsed laser
Raman spectroscopy
Thermal conductivity
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Summary:Developments in continuous and pulsed laser‐heating techniques, and finite‐element calculations for diamond anvil cell experiments are reported. The methods involve the use of time‐resolved (5 ns gated) incandescent light temperature measurements to determine the time dependence of heat fluxes, while near‐IR incandescent light temperature measurements allow temperature measurements to as low as 500 K. Further optimization of timing in pulsed laser heating together with sample engineering will provide additional improvements in data collection in very high P–T experiments.
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ISSN:1600-5775
0909-0495
1600-5775
DOI:10.1107/S0909049509033433