Laser Refrigeration of Solids III  (Jan. 23-28, 2010, San Francisco)

 Deadline

July 13 2009

 UNM Today

Physics Today's Search & Discovery Article  (PDF)

UNM reports a major milestone in Optical Refrigeration: T<160K !

   Presented at IQEC'09  (postdeadline),  Published:  Nature Photonics - January 2010

UNM researchers, in collaboration with their coworkers at the University of Pisa (Italy) and LANL have now achieved the first ever all-solid-state cryogenic operation using laser cooling of a Yb-doped crystal down to 155 K ! (April 28 2009).  Graduate students Denis Seletskiy and Seth Melgaard (Sheik-Bahae's Group ) achieved this by exploiting sharp resonance in the Stark manifold of Yb:YLF, thermal load management and a resonant cavity enhanced approach. Another new redord that was achieved in this experiemnt was a cooling power  of 120 mW, nearly twice the earlier record obtained in Tm:ZBLAN (also by UNM). The Yb:YLF cystals were grown by Mauro Tonelli's group (Dr. Stefanao Bigotta) at EST-CNR, Dipartimento di Fisica, Universita di Pisa, Italy.

Earlier record cooling down to 195K was reported in a paper at the SPIE's Photonics West conference in San Jose, CA on Jan. 29.  Paper 7228-14 (Seletskiy, et al.).

Laser Focus Wolrd (LFW) highlights laser cooling of semiconductor load..
 

UNM Today 2010  UNM TODAY         CAMPUS NEWS     ALBQ. JOURNAL

MURI Review and LCS '05 Workshop

LCS '05

LCS '04

AFOSR

G. Rupper, N. H. Kwong, Ch.-Y. Li, R. Binder, and M. Sheik-Bahae, " Effect of n-p-n heterostructures on interface recombination and semiconductor laser cooling "  J. Appl. Phys.  108, 113118  (2010)  (pdf)

D. Seletskiy, M.P. Hasselbeck, and M. Sheik-Bahae, �Resonant cavity-enhanced absorption for optical refrigeration�, Appl. Phys.  Lett.  96, 181106 (2010)

  W.M. Patterson, M. Sheik-Bahae, R.I. Epstein, M.P. Hehlen, �Model of laser-induced temperature changes in solid-state optical refrigerators,� J. of Appl.  Phys107, 063108 (2010)

W.M. Patterson, Denis Seletskiy, M. Sheik-Bahae, R.I. Epstein, M.P. Hehlen, �Measurement of Solid-State Optical Refrigeration by Two-Band Differential Luminescence Thermometry,�  J. Opt. Soc. Am. B 27, 611-618 (2010).

D. V. Seletskiy, S. D. Melgaard A. Di Lieto, M.  Tonelli, and M. Sheik-Bahae, "Laser cooling of a semiconductor load to 165 K," Optics Express, Vol. 18, pp.18061-18066 (2010) .

M. Sheik-Bahae and Denis Seletskiy �Laser Cooling in Dense Atomic Media�, Nature Photonics, 3, 680-681 (2009).

Denis V. Seletskiy, Seth D. Melgaard, Stefano Bigotta, Alberto Di Lieto, Mauro Tonelli & Mansoor Sheik-Bahae, "Laser Cooling of Solids to Cryogenic Temperatures," Nature Photonics, Januray 2010 (Online)    (pdf)

M. Sheik-Bahae and R.I. Epstein, "Laser Cooling of Solids", Review Article,  Laser & Photonics Reviews, (2008) (pdf)

M. Sheik-Bahae and R.I. Epstein, "Optical Refrigeration: Advancing toward an all-solid-state cryocooler", Invited Progress Article, Nature (Photonics), Vol. 1, 693-699 (2007) (pdf)

W. Patterson, M. Sheik-Bahae, S. Bigotta, D. Parisi, M. Tonelli, and R. I. Epstein, "Anti-Stokes luminescence cooling of Tm³⁺-doped BaY₂F₈," Optics Express, Vol. 16, No. 3, 1704 (2008) (pdf)

B. Imangholi, M.P. Hasselbeck, M. Sheik-Bahae,R. I. Epstein, S. Kurtz, "Effects of epitaxial lift-off on interface recombination and laser cooling in GaInP/GaAs heterostructures”  Appl. Phys. Lett. 86, 81104 (2005) (pdf)

M. Sheik-Bahae and R. I. Epstein, “Can Laser Light Cool Semiconductors?, Phys. Review Lett. . 92, 247403 (2004) (pdf)

B. Imangholi, M. P. Hasselbeck, and M. Sheik-Bahae, “Absorption Spectra of Wide Gap Semiconductors in the Transparency Region” Opt. Comm. 227,  337-341 (2003). (pdf)

Hoyt, C., M. Sheik-Bahae, et al., Advances in laser cooling of thulium-doped glass. J. Opt. Soc. Am. B ,. 20,  1066-1074(2003). (pdf)

C. W. Hoyt, M. Sheik-Bahae, R. I. Epstein, B. Edwards, J. Anderson “Observation of anti-Stokes fluorescence cooling in Tm-dopes glass”,  Phys. Rev. Lett. Vol. 17, 3600 (2000)  (pdf)

New Book

Optical Refrigeration, edited by: Sheik-Bahae and Epstein (Now Available)