scholarly journals Single-crystal diffractometer coupled with double-sided laser heating system at the Extreme Conditions Beamline P02.2 at PETRAIII

2019 ◽  
Vol 90 (7) ◽  
pp. 073907 ◽  
Author(s):  
Elena Bykova ◽  
Georgios Aprilis ◽  
Maxim Bykov ◽  
Konstantin Glazyrin ◽  
Mario Wendt ◽  
...  
Keyword(s):  
Single Crystal ◽  
Laser Heating ◽  
Heating System ◽  
Extreme Conditions

scholarly journals Laser heating system at the Extreme Conditions Beamline, P02.2, PETRA III

2021 ◽  
Vol 28 (6) ◽  
Author(s):  
Zuzana Konôpková ◽  
Wolfgang Morgenroth ◽  
Rachel Husband ◽  
Nico Giordano ◽  
Anna Pakhomova ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Laser Heating ◽  
Melting Curve ◽  
Heating System ◽  
Laser Source ◽  
Extreme Conditions ◽  
Diamond Anvil Cells ◽  
X Ray ◽  
Diamond Anvil ◽  
Pulsed Laser Heating

A laser heating system for samples confined in diamond anvil cells paired with in situ X-ray diffraction measurements at the Extreme Conditions Beamline of PETRA III is presented. The system features two independent laser configurations (on-axis and off-axis of the X-ray path) allowing for a broad range of experiments using different designs of diamond anvil cells. The power of the continuous laser source can be modulated for use in various pulsed laser heating or flash heating applications. An example of such an application is illustrated here on the melting curve of iron at megabar pressures. The optical path of the spectroradiometry measurements is simulated with ray-tracing methods in order to assess the level of present aberrations in the system and the results are compared with other systems, that are using simpler lens optics. Based on the ray-tracing the choice of the first achromatic lens and other aspects for accurate temperature measurements are evaluated.

Single-crystal Brillouin spectroscopy with CO2 laser heating and variable q

2015 ◽  
Vol 86 (6) ◽  
pp. 063905 ◽  
Author(s):  
Jin S. Zhang ◽  
Jay D. Bass ◽  
Gaohua Zhu
Keyword(s):  
Single Crystal ◽  
Co2 Laser ◽  
Laser Heating ◽  
Brillouin Spectroscopy
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