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Updated: Jun 19, 2026

An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

Published on: June 18, 2020

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

Alexander F Goncharov¹, Javier A Montoya, Natarajan Subramanian

¹Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA. goncharov@gl.ciw.edu

Journal of Synchrotron Radiation

|October 22, 2009

Summary

Developments in laser heating and finite-element calculations enhance diamond anvil cell experiments. These advanced techniques improve temperature measurements and data collection for high-pressure, high-temperature research.

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$Synthesis and Microdiffraction at Extreme Pressures and Temperatures$

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Published on: October 7, 2013

Area of Science:

Geophysics
Materials Science
Experimental Physics

Background:

Diamond anvil cells (DAC) are crucial for simulating extreme conditions.
Accurate temperature measurement is vital for understanding material behavior under pressure.

Purpose of the Study:

To report advancements in continuous and pulsed laser-heating techniques for DAC experiments.
To present finite-element calculations aiding these experiments.
To improve temperature measurement accuracy and data acquisition.

Main Methods:

Utilizing time-resolved (5 ns gated) incandescent light for temperature measurements.
Employing near-infrared incandescent light for measurements down to 500 K.
Integrating finite-element calculations with experimental setups.

Main Results:

Demonstrated capability for precise temperature measurements under extreme conditions.
Established methods for determining time-dependent heat fluxes.
Achieved temperature measurements as low as 500 K.

Conclusions:

Optimized timing in pulsed laser heating and sample engineering are key for future improvements.
These developments will enhance data collection in very high pressure-temperature (P-T) experiments.
The reported techniques offer significant potential for advancing high-P-T research.