Petitgirard, SylvainSalamat, AshkanBeck, PierreWeck, GunnarBouvier, Pierre2016-07-142014Petitgirard, Sylvain, Ashkan Salamat, Pierre Beck, Gunnar Weck, and Pierre Bouvier. 2014. “Strategies for in situ laser heating in the diamond anvil cell at an X-ray diffraction beamline.” Journal of Synchrotron Radiation 21 (Pt 1): 89-96. doi:10.1107/S1600577513027434. http://dx.doi.org/10.1107/S1600577513027434.0909-0495http://nrs.harvard.edu/urn-3:HUL.InstRepos:27662252An overview of several innovations regarding in situ laser-heating techniques in the diamond anvil cell at the high-pressure beamline ID27 of the European Synchrotron Radiation Facility is presented. Pyrometry measurements have been adapted to allow simultaneous double-sided temperature measurements with the installation of two additional online laser systems: a CO2 and a pulsed Nd:YAG laser system. This reiteration of laser-heating advancements at ID27 is designed to pave the way for a new generation of state-of-the-art experiments that demand the need for synchrotron diffraction techniques. Experimental examples are provided for each major development. The capabilities of the double pyrometer have been tested with the Nd:YAG continuous-wave lasers but also in a time-resolved configuration using the nanosecond-pulsed Nd:YAG laser on a Fe sample up to 180 GPa and 2900 K. The combination of time-resolved X-ray diffraction with in situ CO2 laser heating is shown with the crystallization of a high-pressure phase of the naturally found pyrite mineral MnS2 (11 GPa, 1100–1650 K).en-USlaser heatingdiamond anvil cellCONd:YAG pulsed laserID27 beamlineJournal Article2016-07-1410.1107/S1600577513027434