CLEAR Lab "The Color of the Earth's Mantle"
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Within the research group CLEAR we endeavor to understand large scale geological processes that operate deep inside planets. Our approach is to recreate high pressure-temperature conditions in the laboratory and examine various physical properties of minerals and rocks (in situ) using state-of-the-art spectroscopic techniques. Specifically, we use statically- and dynamically-heated diamond anvil cells together with a pulsed time-resolved broadband optical probe and a precisely-synchronized detector to explore the optical properties of planetary mantles and technological materials at extreme conditions. Details on the experimental setup and its capabilities are provided here.
Categories
Disciplinary Keywords
Instrumentation
Laboratory instrumentation
Instruments
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Camera
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Diamond Anvil Cell
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Laser
LASERS (Light Amplification by Stimulated Emission of Radiation): Any of several devices that emit highly amplified and coherent radiation of one or more discrete frequencies. One of the most common lasers makes use of atoms in a metastable energy state that, as they decay to a lower energy level, stimulate others to decay, resulting in a cascade of emitted radiation.
[Source: The American Heritage® Dictionary of the English Language, Fourth Edition]
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Spectrograph
Spectrographs are spectroscopes with a photographic or other recording device to capture an image of the entire spectrum, or portions thereof, at one instant in time. [Source: Glossary of Meteorology] (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects pision, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords)
Links
Key Publication
- Lobanov, S. S., & Speziale, S. (2019). Radiometric temperature measurements in nongray ferropericlase with pressure- spin- and temperature-dependent optical properties. Journal of Geophysical Research: Solid Earth, 124, 12825–12836.
- Sergey S. Lobanov, Lukas Schifferle, Reiner Schulz; Gated detection of supercontinuum pulses enables optical probing of solid and molten silicates at extreme pressure–temperature conditions. Rev. Sci. Instrum. 1 May 2020; 91 (5): 053103.