Optics Express

Local laser cooling of Yb:YLF to 110 K

Denis V. Seletskiy, Seth D. Melgaard, Richard I. Epstein, Alberto Di Lieto, Mauro Tonelli, Mansoor Sheik‐Bahae

Published Sep 1, 2011• 65 citations

Abstract

Minimum achievable temperature of ~110 K is measured in a 5% doped Yb:YLF crystal at λ = 1020 nm, corresponding to E4-E5 resonance of Stark manifold. This measurement is in excellent agreement with the laser cooling model and was made possible by employing a novel and sensitive implementation of differential luminescence thermometry using balanced photo-detectors.

DOI: 10.1364/oe.19.018229

Related papers

High Sensitivity Optical Refrigeration Spectroscopy: Local Cooling of Yb:YLF Crystal to 110 K

Seth D. Melgaard, Denis V. Seletskiy, Alberto Di Lieto +2 more

Utilizing a novel implementation of differential luminescence thermometry we accurately measure laser cooling efficiency spectra of solids. Cooling to 110K is shown in Yb:YLF at the E4-E5 Stark manifold resonance as predicted by theory.

Jan 1, 20112 citations

Optical Refrigeration to NIST Cryogenic Temperature at 123K

Seth D. Melgaard, Denis V. Seletskiy, Alberto Di Lieto +2 more

A record low temperature in optical refrigeration is demonstrated by cooling Yb:YLF crystal to 128K ± 5K (∼−150 C) at λ=1020 nm corresponding to its E4-E5 Stark manifold resonance. The estimated cooling power is 165 mW.

Conference on Lasers and Electro-OpticsJan 1, 20122 citations

Laser cooling of a semiconductor load using a Yb:YLF optical refrigerator

Denis V. Seletskiy, Seth D. Melgaard, Mansoor Sheik‐Bahae +3 more

We demonstrate cooling of a 2 micron thick GaAs/InGaP double-heterostructure to 165 K from ambient using an all-solid-state optical refrigerator. Cooler is comprised of Yb3+-doped YLF crystal, pumped by 9 Watt near E4-E5 Stark manifold transition.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEFeb 8, 20104 citations

Laser Cooling of a Semiconductor Load to 165 K

Denis V. Seletskiy, Seth D. Melgaard, Mansoor Sheik‐Bahae +3 more

We demonstrate cooling of a 2 micron thick GaAs/InGaP double - heterostructure to 165 K by means of an optical refrigerator. Cooler is comprised of Yb3+-doped YLF crystal, pumped by 9 Watt near E4-E5 Stark manifold transition.

Conference on Lasers and Electro-OpticsJan 1, 20102 citations

Laser cooling of a semiconductor load to 165 K

Denis V. Seletskiy, Seth D. Melgaard, Alberto Di Lieto +2 more

We demonstrate cooling of a 2 micron thick GaAs/InGaP double-heterostructure to 165 K from ambient using an all-solid-state optical refrigerator. Cooler is comprised of Yb(3+)-doped YLF crystal, utilizing 3.5 Watts of absorbed power near the E4-E5 Stark manifold transition.

Optics ExpressAug 6, 201039 citations

Temperature-dependent spectroscopy of Yb:YLF and prospects for laser cooling

Stefan Püschel, Sascha Kalusniak, Christian Kränkel +1 more

Ytterbium-doped materials are promising for high power solid-state lasers as well as laser cooling [1] . Cooling of Yb-doped fluoride crystals, particularly LiYF 4 (YLF), has been very successful, achieving cooling of high purity Yb:YLF crystals to below 100 K [2] . Here, we revisit the detailed temperature-dependent spectroscopy of Yb:YLF in order to fully reveal its potential as a laser cooling medium and to address requirements to achieve the liquid nitrogen temperature at 77 K.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)Jun 21, 20211 citation