Investigation of the laser cooling cycle in the time domain (Conference Presentation)

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EPSTEIN, Richard I., ed., Denis V. SELETSKIY, ed., Mansoor SHEIK-BAHAE, ed.. Optical and Electronic Cooling of Solids II. Bellingham: SPIE, 2017, 101210G. Proceedings of SPIE. 10121. ISSN 0277-786X. ISBN 978-1-5106-0683-8. Available under: doi: 10.1117/12.2251938
Zusammenfassung

Upon excitation of a material below its fundamental transition, cooling of the lattice results if the subsequent emission is predominantly radiative. Despite overwhelming experimental success, it remains a challenge to understand the microscopic nature of detrimental processes that can even prevent cooling. We apply ultrafast spectroscopy to resolve the laser refrigeration cycle in the time domain. Strong evidence for lattice cooling on picosecond timescales in bulk GaAs/InGaP double-heterostructures and GaAs/AlGaAs quantum wells establishes the non-local nature of the parasitic mechanisms. Further precision measurements investigating long-time dynamics are currently underway to resolve detrimental heating in bulk GaAs for the first time.

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530 Physik
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Optical and Electronic Cooling of Solids II, 1. Feb. 2017 - 2. Feb. 2017, San Francisco, California
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ISO 690SCHMIDT, Jan, Timo RAAB, Jannis OELMANN, Denis V. SELETSKIY, 2017. Investigation of the laser cooling cycle in the time domain (Conference Presentation). Optical and Electronic Cooling of Solids II. San Francisco, California, 1. Feb. 2017 - 2. Feb. 2017. In: EPSTEIN, Richard I., ed., Denis V. SELETSKIY, ed., Mansoor SHEIK-BAHAE, ed.. Optical and Electronic Cooling of Solids II. Bellingham: SPIE, 2017, 101210G. Proceedings of SPIE. 10121. ISSN 0277-786X. ISBN 978-1-5106-0683-8. Available under: doi: 10.1117/12.2251938
BibTex
@inproceedings{Schmidt2017Inves-39621,
  year={2017},
  doi={10.1117/12.2251938},
  title={Investigation of the laser cooling cycle in the time domain (Conference Presentation)},
  number={10121},
  isbn={978-1-5106-0683-8},
  issn={0277-786X},
  publisher={SPIE},
  address={Bellingham},
  series={Proceedings of SPIE},
  booktitle={Optical and Electronic Cooling of Solids II},
  editor={Epstein, Richard I. and Seletskiy, Denis V. and Sheik-Bahae, Mansoor},
  author={Schmidt, Jan and Raab, Timo and Oelmann, Jannis and Seletskiy, Denis V.},
  note={Article Number: 101210G}
}
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