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Title: First demonstration of an all-solid-state optical cryocooler

Abstract

Solid-state optical refrigeration uses anti-Stokes fluorescence to cool macroscopic objects to cryogenic temperatures without vibrations. Crystals such as Yb3+-doped YLiF4 (YLF:Yb) have previously been laser-cooled to 91 K. In this study, we show for the first time laser cooling of a payload connected to a cooling crystal. A YLF:Yb crystal was placed inside a Herriott cell and pumped with a 1020-nm laser (47 W) to cool a HgCdTe sensor that is part of a working Fourier Transform Infrared (FTIR) spectrometer to 135 K. This first demonstration of an all-solid-state optical cryocooler was enabled by careful control of the various desired and undesired heat flows. Fluorescence heating of the payload was minimized by using a single-kink YLF thermal link between the YLF:Yb cooling crystal and the copper coldfinger that held the HgCdTe sensor. The adhesive-free bond between YLF and YLF:Yb showed excellent thermal reliability. This laser-cooled assembly was then supported by silica aerogel cylinders inside a vacuum clamshell to minimize undesired conductive and radiative heat loads from the warm surroundings. Our structure can serve as a baseline for future optical cryocooler devices.

Authors:
ORCiD logo [1];  [2];  [2];  [2]; ORCiD logo [2];  [3];  [3];  [2];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Physics & Astronomy
  2. Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Physics & Astronomy
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; US Air Force Office of Scientific Research (AFOSR)
OSTI Identifier:
1457311
Report Number(s):
LA-UR-18-20886
Journal ID: ISSN 2047-7538
Grant/Contract Number:  
AC52-06NA25396; FA9550-15-1-024; FA9550-16-1-0362
Resource Type:
Accepted Manuscript
Journal Name:
Light, Science & Applications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2047-7538
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Hehlen, Markus P., Meng, Junwei, Albrecht, Alexander R., Lee, Eric R., Gragossian, Aram, Love, Steven P., Hamilton, Christopher E., Epstein, Richard I., and Sheik-Bahae, Mansoor. First demonstration of an all-solid-state optical cryocooler. United States: N. p., 2018. Web. doi:10.1038/s41377-018-0028-7.
Hehlen, Markus P., Meng, Junwei, Albrecht, Alexander R., Lee, Eric R., Gragossian, Aram, Love, Steven P., Hamilton, Christopher E., Epstein, Richard I., & Sheik-Bahae, Mansoor. First demonstration of an all-solid-state optical cryocooler. United States. doi:10.1038/s41377-018-0028-7.
Hehlen, Markus P., Meng, Junwei, Albrecht, Alexander R., Lee, Eric R., Gragossian, Aram, Love, Steven P., Hamilton, Christopher E., Epstein, Richard I., and Sheik-Bahae, Mansoor. Wed . "First demonstration of an all-solid-state optical cryocooler". United States. doi:10.1038/s41377-018-0028-7. https://www.osti.gov/servlets/purl/1457311.
@article{osti_1457311,
title = {First demonstration of an all-solid-state optical cryocooler},
author = {Hehlen, Markus P. and Meng, Junwei and Albrecht, Alexander R. and Lee, Eric R. and Gragossian, Aram and Love, Steven P. and Hamilton, Christopher E. and Epstein, Richard I. and Sheik-Bahae, Mansoor},
abstractNote = {Solid-state optical refrigeration uses anti-Stokes fluorescence to cool macroscopic objects to cryogenic temperatures without vibrations. Crystals such as Yb3+-doped YLiF4 (YLF:Yb) have previously been laser-cooled to 91 K. In this study, we show for the first time laser cooling of a payload connected to a cooling crystal. A YLF:Yb crystal was placed inside a Herriott cell and pumped with a 1020-nm laser (47 W) to cool a HgCdTe sensor that is part of a working Fourier Transform Infrared (FTIR) spectrometer to 135 K. This first demonstration of an all-solid-state optical cryocooler was enabled by careful control of the various desired and undesired heat flows. Fluorescence heating of the payload was minimized by using a single-kink YLF thermal link between the YLF:Yb cooling crystal and the copper coldfinger that held the HgCdTe sensor. The adhesive-free bond between YLF and YLF:Yb showed excellent thermal reliability. This laser-cooled assembly was then supported by silica aerogel cylinders inside a vacuum clamshell to minimize undesired conductive and radiative heat loads from the warm surroundings. Our structure can serve as a baseline for future optical cryocooler devices.},
doi = {10.1038/s41377-018-0028-7},
journal = {Light, Science & Applications},
number = ,
volume = 7,
place = {United States},
year = {2018},
month = {6}
}

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    Works referencing / citing this record:

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    Optical refrigeration: the role of parasitic absorption at cryogenic temperatures
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