Precise determination of minimum achievable temperature for solid-state optical refrigeration

Abstract We measure the minimum achievable temperature (MAT) as a function of excitation wavelength in anti-Stokes fluorescence cooling of high purity Yb 3+ -doped LiYF 4 (Yb:YLF) crystal. Such measurements were obtained by developing a sensitive noncontact thermometry that is based on a two-band differential luminescence spectroscopy using balanced photo-detectors. These measurements are in excellent agreement with the prediction of the laser cooling model and identify MAT of 110 K at 1020 nm, corresponding to E4–E5 Stark manifold transition in Yb:YLF crystal.

[1]  T. R. Gosnell,et al.  Observation of laser-induced fluorescent cooling of a solid , 1995, Nature.

[2]  Steven R. Bowman,et al.  Lasers without internal heat generation , 1999 .

[3]  Mauro Tonelli,et al.  Laser cooling of a semiconductor load to 165 K , 2010, CLEO/QELS: 2010 Laser Science to Photonic Applications.

[4]  Galina Nemova,et al.  Laser cooling of solids , 2009, 0907.1926.

[5]  Mansoor Sheik-Bahae,et al.  Optical refrigeration : science and applications of laser cooling of solids , 2009 .

[6]  D. Mccumber,et al.  Einstein Relations Connecting Broadband Emission and Absorption Spectra , 1964 .

[7]  Allan J. Mord,et al.  Performance modeling of optical refrigerators , 2006 .

[8]  Mansoor Sheik-Bahae,et al.  Progress toward sub-100 Kelvin operation of an optical cryocooler , 2011, OPTO.

[9]  L Bonelli,et al.  Diode-pumped passively mode-locked Yb:YLF laser. , 2008, Optics express.

[10]  B. C. Edwards,et al.  Spectroscopic evaluation of Yb/sup 3+/-doped glasses for optical refrigeration , 1998 .

[11]  Mansoor Sheik-Bahae,et al.  Laser cooling of solids to cryogenic temperatures , 2010 .

[12]  R. Epstein,et al.  Demonstration of a solid-state optical cooler: An approach to cryogenic refrigeration , 1999 .

[13]  B. C. Edwards,et al.  Determination of spectral linewidths by Voigt profiles in Yb 3+ -doped fluorozirconate glasses , 1998 .

[14]  S. Greenfield,et al.  Cooling to 208K by optical refrigeration , 2005 .

[15]  T. R. Gosnell,et al.  Laser cooling of a solid by 65K starting from room temperature. , 1997, Optics letters.

[16]  T. R. Gosnell,et al.  Internal laser cooling of Yb3+-doped glass measured between 100 and 300 K , 1997 .

[17]  M. A. Arriandiaga,et al.  On the origin of anti-Stokes laser-induced cooling of Yb3+-doped glass , 2001 .

[18]  Mansoor Sheik-Bahae,et al.  Local laser cooling of Yb:YLF to 110 K. , 2011, Optics express.

[19]  Mansoor Sheik-Bahae,et al.  Laser cooling of solids , 2009 .

[20]  Mansoor Sheik-Bahae,et al.  Measurement of solid-state optical refrigeration by two-band differential luminescence thermometry , 2010 .

[21]  Markus P. Hehlen,et al.  Model of laser cooling in theYb3+-doped fluorozirconate glass ZBLAN , 2007 .

[22]  P. Pringsheim.  Zwei Bemerkungen über den Unterschied von Lumineszenz- und Temperaturstrahlung , 1929 .