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Portable double-sided pulsed laser heating system for time-resolved geoscience and materials science applications

MetadataDetails
Publication Date2017-08-01
JournalReview of Scientific Instruments
AuthorsGeorgios Aprilis, C. Strohm, Ilya Kupenko, S. Linhardt, Alexander Laskin
InstitutionsUniversity of Bayreuth, European Synchrotron Radiation Facility
Citations32

A portable double-sided pulsed laser heating system for diamond anvil cells has been developed that is able to stably produce laser pulses as short as a few microseconds with repetition frequencies up to 100 kHz. In situ temperature determination is possible by collecting and fitting the thermal radiation spectrum for a specific wavelength range (particularly, between 650 nm and 850 nm) to the Planck radiation function. Surface temperature information can also be time-resolved by using a gated detector that is synchronized with the laser pulse modulation and space-resolved with the implementation of a multi-point thermal radiation collection technique. The system can be easily coupled with equipment at synchrotron facilities, particularly for nuclear resonance spectroscopy experiments. Examples of applications include investigations of high-pressure high-temperature behavior of iron oxides, both in house and at the European Synchrotron Radiation Facility using the synchrotron Mössbauer source and nuclear inelastic scattering.

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