Laser Refrigeration of Sodium Yttrium Fluoride Nanoparticles in a Vacuum Optical Tweezer
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)(2021)
摘要
Laser refrigeration of rare-earth doped optically levitated nanoparticles allows for cooling of 42 K. Cooling is calibrated using a cryostat. Cooling efficiency decreases at pressures below 5 mbar as thermal contact with gas molecules decreases. (C) 2021 The Author(s)
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