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

Schmidt, Jan; Raab, Timo; Oelmann, Jannis; Seletskiy, Denis V.

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

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Date

2017

Publication type

Contribution to a conference collection

Publication status

Published

Published in

Optical and Electronic Cooling of Solids II / Epstein, Richard I.; Seletskiy, Denis V.; Sheik-Bahae, Mansoor (ed.). - Bellingham : SPIE, 2017. - (Proceedings of SPIE ; 10121). - 101210G. - ISSN 0277-786X. - ISBN 978-1-5106-0683-8

Abstract

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.

Subject (DDC)

530 Physics

Conference

Optical and Electronic Cooling of Solids II, Feb 1, 2017 - Feb 2, 2017, San Francisco, California

Cite This

ISO 690

SCHMIDT, 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, Feb 1, 2017 - Feb 2, 2017. In: EPSTEIN, Richard I., ed., Denis V. SELETSKIY, ed., Mansoor SHEIK-BAHAE, ed.. Optical and Electronic Cooling of Solids II. Bellingham:SPIE, 101210G. 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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Bibliography of Konstanz

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