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 img1.gifOptical Refrigeartion by Epstein & Sheik-Bahae


Seth D. Melgaard, , Alexander R. Albrecht, , Markus P. Hehlen,  & Mansoor Sheik-Bahae, "Solid-state optical refrigeration to sub-100 Kelvin regime," Nature Scientific Reports 6, Article number: 20380 (2016) link pdf




Intra-cavity cryogenic optical refrigeration using high power vertical external-cavity surface-emitting lasers (VECSELs)

M Ghasemkhani, AR Albrecht, SD Melgaard, DV Seletskiy, JG Cederberg, M. Sheik-Bahae

Optics express 22 (13), 16232-16240  (2014)


Identification of parasitic losses in Yb: YLF and prospects for optical refrigeration down to 80K

S Melgaard, D Seletskiy, V Polyak, Y Asmerom, M Sheik-Bahae

Optics express 22 (7), 7756-7764 (2014)


Optical refrigeration to 119 K, below National Institute of Standards and Technology cryogenic temperature
SD Melgaard, DV Seletskiy, A Di Lieto, M Tonelli, M Sheik-Bahae
Optics letters 38 (9), 1588-1590  pdf

Cryogenic optical refrigeration
DV Seletskiy, MP Hehlen, RI Epstein, M Sheik-Bahae
Advances in Optics and Photonics 4 (1), 78-107   pdf

Materials for Optical Cryocoolers
MP Hehlen, M Sheik-Bahae, RI Epstein, SD Melgaard, DV Seletskiy
J. Mater. Chem. C 1 (45), 7471-7478  pdf


Growth and testing of vertical external cavity surface emitting lasers (VECSELs) for intracavity cooling of Yb: YLF
JG Cederberg, AR Albrecht, M Ghasemkhani, SD Melgaard, M Sheik-Bahae
Journal of Crystal Growth

Development of high quantum efficiency GaAs/GaInP double heterostructures for use in laser cooling.
DA Bender, JG Cederberg, C Wang, M Sheik-Bahae
Applied Physics Letters   pdf


Optical refrigeration achieves ΔT> 180K
S Melgaard, DV Seletskiy, M Sheik-Bahae
CLEO: QELS_Fundamental Science


Chegao.G. Wang, C. Y. Li, M. P. Hasselbeck, Babak Imangholi, and Mansoor Sheik-Bahae, "Precision, all-optical measurement of external quantum efficiency in semiconductors," J. Appl. Phys.  109, 093108 (2011) pdf


W.M. Patterson, P. C. Stark, T. M. Yoshida, M. Sheik-Bahae,  M.P. Hehlen, "Preparation and Characterization of High-Purity Metal Fluorides for Photonic Applications," J. Am. Ceramic Soc. 94, 2896-2901 (2011)  pdf


D. V. Seletskiy, S. D. Melgaard, R. I  Epstein,  A. Di Lieto, M.  Tonelli, and M. Sheik-Bahae, " Local laser cooling of Yb:YLF to 110 K," Optics Express, Vol. 19, pp. 18229-18236 (2011)  pdf


D. V. Seletskiy, S. D. Melgaard, R. I  Epstein,  A. Di Lieto, M.  Tonelli, and M. Sheik-Bahae, "Precise determination of minimum achievable temperature for solid-state optical refrigeration," J. Luminescence, online 4 (2011)


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) pdf


  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)   pdf


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).  pdf


Denis V. Seletskiy, "Ultrafast terahertz spectroscopy and control of collective modes in semiconductors" PhD Disseration, University of New Mexico (2010),  pdf


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) . pdf




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


Daneil B. Bender "Precision Optical Characterization on Nanometer Length and Femtosecond Time Scales" PhD Disseration, University of New Mexico (2008),  pdf


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)


Babak Imangholi, "Investigation of Laser Cooling in Semiconductors ", PhD Dissertation, University of New Mexico (2006) (pdf)


M. Sheik-Bahae, B. Imangholi, M.P. Hasselbeck, R. I Epstein, S. Kurtz, "Advances in Laser Cooling of Semiconductors,'" Proceedings of SPIE, Photonics West (2006) (pdf)


Babak Imangholi, M.P. Hasselbeck, and 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)


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


C.W. Hoyt, 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-doped glas'',  Phys. Rev. Lett. Vol. 17, 3600 (2000)  (pdf)


C. W. Hoyt, ''Laser Cooling in Tm-doped Solids'',  Ph.D. Dissertaion, University of New Mexico (2003)  (pdf)



Exploring ultrafast negative Kerr effect for mode-locking vertical external-cavity surface-emitting lasers
AR Albrecht, Y Wang, M Ghasemkhani, DV Seletskiy, JG Cederberg, M Sheik-Bahae
Optics Express 21 (23), 28801-28808   (pdf)

Coherent Detection of Terahertz via Laser Induced Plasma with Controlled Optical Bias
CY Li, DV Seletskiy, M Sheik-Bahae
CLEO: Science and Innovations

Coherent Control of Simultaneously Generated XUV and THz Radiation in Strongly Polar-Asymmetric Excitation
A Gragossian, DV Seletskiy, M Sheik-Bahae
CLEO: QELS_Fundamental Science

D. V. Seletskiy,  M. P. Hasselbeck, J. G. Cederberg, A. Katzenmeyer, M. E. Toimil-Molares, F. Leonard, A. A. Talin, A. and M. Sheik-Bahae, "Efficient terahertz emission from InAs nanowires," Phys. Rev. B   84, 115421  (2011)  [This paper was selected for PRB's Editors' Selection]. pdf

Zhang, L. Wang, S. Krishna, M. Sheik-Bahae, S. R. J. Brueck, "Saturation of the second harmonic generation from GaAs-filled metallic hole arrays by nonlinear absorption," Phys. Rev. B   83, 165438 (2011) pdfJ.

Denis Seletskiy, "Ultrafast terahertz spectroscopy and control of collective modes in semiconductors", PhD dissertaion, University of New Mexico, Dec. 2010. pdf

D. A. Bender, M. Sheik-Bahae, "Complementary ultrashort laser pulse characterization using MOSAIC and SHG FROG," Opt. Lett. Volume: 35   Pages: 2191-2193  (2010)  pdf

D. Bender, J. W. Nicholson, and M. Sheik-Bahae, "Ultrashort laser pulse characterization using Modified spectrum autointerferomteric correlation (MOSAIC) ," Optics Express, Vol. 16,  11782-11794 (2008). (pdf)       See also:   MOSAIC

D. Bender, and M. Sheik-Bahae, "Modified spectrum autointerferomteric correlation (MOSAIC) for single-shot pulse characterization," Opt. Lett.  Vol. 32,  2822-2824 (2007). (pdf)       See also:   MOSAIC

M.P. Hasselbeck, D. Seletskiy, L. R. Dawson, and M. Sheik-Bahae, "Direct observation of Landau damping in a solid state plasma", Phys. Stat. Solidi (c), Vol. 5, 253-256 (2008). (pdf)     

D. Bender, M.P. Hasselbeck, and M. Sheik-Bahae,"Sensitive ultrashort pulse chirp measurement," Opt. Lett.  Vol. 31,  122-124 (2006). (pdf)       See also:   MOSAIC

M.P. Hasselbeck, D. Stalnaker, L.A. Schlie, T.J. Rotter, A. Stintz, M. Sheik-Bahae, ''Emission of terahertz radiation from coupled plasmon-phonon modes in InAs,'' Phys. Rev. B 65, 233203 (2002) (pdf)

Hirayama, and M. Sheik-Bahae,"Real-time chirp diagnostic in ultrashort laser pulses," Opt. Lett.  Vol. 27,  860-862 (2002). (pdf)       See also:   MOSAIC

J. Zeller, J. Jasapara, W. Rudolph, M. Sheik-Bahae, Spectro-temporal characterization of a femtosecond white-light continuum by transient-grating diffraction, Opt. Comm., 185, 133-137 (2000).

Gutierrez, P. Dorn, J. Zeller, D. King, L. F. Lester, W. Rudolph, and M. Sheik-Bahae,"Autocorrelation measurement of femtosecond laser pulses by use of a ZnSe two-photon detector array," Opt. Lett., vol. 24, pp. 1175-1177, 1999.

W. Rudolph, M. Sheik-Bahae, A. Bernstein, L. F. Lester,"Femtosecond autocorrelation measurements based on two-photon photoconductivity in ZnSe," Opt. Lett. 22, 313 (1997).

M. Sheik-Bahae,"Femtosecond Kerr-lens Autocorrelation," Opt. Lett. , 22,  399 (1997) (pdf) 

Joachim Zeller, Wolfgang Rudolph and Mansoor Sheik-Bahae"Anomalous nonlinear photoresponse in a InGaN/GaN heterostructure" J. Appl. Phys., 95, 6152 (2004). (pdf)

C. W. Hoyt, M. Sheik-Bahae, M. Ebrahimzadeh,"High-power picosecond optical parametric oscillator based on periodically poled lithium niobate", Opt. Lett. 27, 1543-1546 (2002) (pdf).

M. Sheik-Bahae,"Quantum Interference Control of Current in Semiconductors: Universal Scaling and Polarization Effects.," Phys. Rev. B, Rapid Communications, vol. 60, pp. 11258-11260, 1999. (pdf)

M. Sheik-Bahae and M. Ebrahimzadeh,"Measurements of nonlinear refraction in the second-order c(2) materials KTiOPO4, KNbO3, b-BaB2O4, and LiB3O5", Opt. Comm. 142, 294-298   (1997). 

M. P. Hasselbeck, E.W. Van Stryland, and M. Sheik-Bahae, ''Dynamic band unblocking and leakage two-photon absorption in InSb'',  Phys. Rev. B15, 7395-7403 (1997).

M. Sheik-Bahae, E.W. Van Stryland,"Ultrafast nonlinearities in semiconductor laser amplifiers," Phys. Rev. B, 50, 14171-14178 (1994).(pdf)

C.A. Aversa, J.E. Sipe, M. Sheik-Bahae, E.W. Van Stryland,"Third-order optical nonlinearities in semiconductors: The two-band model," Phys. Rev. B, 50, 18073-18082 (1994).

M. Sheik-Bahae , J. Wang, E.W. Van Stryland, ''Nondegenerate Optical Kerr Effect in Semiconductors,'' IEEE J. Quantum Electron.  QE-29 ,  30, 249-255 (1994).

T. Xia, D.J. Hagan, M. Sheik-Bahae, and E.W. Van Stryland, ''Eclipsing Z-scan Measurements of  l/104 Wavefront Distortion,'' Opt. Lett.  19, 317-319 (1994). (pdf)

J. Wang,  M. Sheik-Bahae , A.A. Said, D.J. Hagan, E.W. Van Stryland, ''Time-Resolved Z-scan Measurements of Optical Nonlinearities,'' J. Opt. Soc. Am. B.  11, 1009-1017(1994).(pdf)

J.U. Kang, A. Villeneuve,  M. Sheik-Bahae , G.I. Stegeman, K. Al-hemyari, J.S. Aitchison, C.N. Ironside, ''Limitation Due to Three Photon Absorption on Useful Spectral Range for Nonlinear Optics in AlGaAs Below Half Bandgap,'' Appl. Phys. Lett.  65, 147-149 (1994).

G.I. Stegeman,  M. Sheik-Bahae , E.W. Van Stryland, ''Large Nonlinear Phase Shifts in Second Order Nonlinear Optical Processes,'' Opt. Lett. 18 , 13-15(1993) (pdf)

G. Assanto, G.I. Stegeman,   M. Sheik-Bahae, E.W. Van Stryland, ''All Optical Switching Devices Based on Large Nonlinear Phase Shifts from Second Harmonic Generation,'' Appl. Phys. Lett.,  62 , 1323-1325 (1993)

D.C. Hutchings,  M. Sheik-Bahae , D.J. Hagan, and E.W. Van Stryland,  ''Kramers-Kronig Relations in Nonlinear Optics'', Optical and Quantum Electronics,  Tutorial Review  24, 1-30 (1992). pdf

A. A. Said,  M. Sheik-Bahae , D.J. Hagan, T.H. Wei, J. Wang, J. Young, E.W. Van Stryland,  ''Determination of Bound and Free-Carrier Nonlinearities in ZnSe, GaAs, CdTe, and ZnTe,'' J. Opt. Soc. Am. B.  9 , 409 (1992).(pdf)

R. DeSalvo, D.J. Hagan, M. Sheik-Bahae , G. Stegeman, H. Vanherzeele, E.W. Van Stryland, ''Self-focusing and Defocusing by Cascaded Second Order Effects in KTP,'' Opt. Lett.  17 , 28 (1992).

M. Sheik-Bahae , J. Wang, J.R. DeSalvo, D.J. Hagan, E.W. Van Stryland, ''Measurement of Nondegenerate Nonlinearities Using a Two-Color Z­scan,'' Opt. Lett.   29 , 258(1992). (pdf)

M. Sheik-Bahae, R. DeSalvo, D.J. Hagan, G. Assanto, G.I. Stegeman, E.W. Van Stryland, ''Nonlinear Phase Shifts Using Second Order Nonlinearities,'' Optics and Photonics News, Vol.3, pp. 11, Dec. 1992.

M. Sheik-Bahae ,  A.A. Said,  D.J. Hagan,  and E.W. Van Stryland,  ''Nonlinear Refraction and Optical Limiting in Thick Media,'' Opt. Eng  30 , 1228(1991).(pdf)

M. Sheik-Bahae , D.C. Hutchings, D.J. Hagan, and E.W. Van Stryland, ''Dispersion of Bound Electronic Nonlinear Refraction in Solids,'' IEEE J. Quantum Electron.  QE-27 , 1296(1991). (pdf)

M. Sheik-Bahae, D.J. Hagan, and E.W. Van Stryland, ''Dispersion and Band-Gap Scaling of the Electronic Kerr Effect in Solids Associated with Two-Photon Absorption'', Phys. Rev. Lett.  65, 96(1990). (pdf)

M. Sheik-Bahae, A.A. Said, T.H. Wei, D.J. Hagan, and E.W. Van Stryland, ''Sensitive Measurement of Optical Nonlinearities Using a Single Beam," IEEE Journal of Quantum Electronics, QE-26, 760-769 (1990). (pdf)

M. Sheik-Bahae, A.A. Said, and E.W. Van Stryland, ''High Sensitivity, Single Beam n2 Measurements," Opt. Lett. 14, 955-957 (1989).(pdf)

  • Selected  Book Chapters in Nonlinear Optics

Nonlinear Optics Basics: Kramers-Krönig Relations in Nonlinear Optics, M. Sheik-Bahae, in Encyclopedia of Modern Optics, in press, Academic Press, London (2004) (preprint)

Z-Scan, E. W. Van Stryland and M. Sheik-Bahae, , in Characterization Techniques and Tabulations for Organic Nonlinear Materials,  M. G. Kuzyk and C. W. Dirk, Eds., page 655-692,  Marcel Dekker, Inc., 1998 (preprint)

Optical Nonlinearities in the Transparency Region of Bulk Semiconductors,  M. Sheik-Bahae and E.W. Van Stryland, in Nonlinear Optics of Semiconductors, E. Garmire and A. Kost, Eds.,  Volume 58 of Semiconductor and Semimetals, pp. 257-318, Academic Press (1998)  pdf

Third Order Optical Nonlinearities, M. Sheik-Bahae and M. P. Hasselbeck, in OSA Handbook of Optics, Vol. IV, pp 17.3-17.38, McGraw-Hill, 2001 (preprint)


M. Sheik-Bahae, H.S. Kwok, ''Characterization of a picosecond CO2 laser system'', Appl. Opt.  24, 666 (1985).

M. Sheik-Bahae, P. Mukherjee, and H.S. Kwok, ''Two-photon and three-photon absorption coefficients in InSb,'' J. Opt. Soc. Am. B, 3, 379 (1986).

M. Sheik-Bahae, H.S. Kwok, ''The frequency spectrum of Optical Free Induction Decay ultrashort CO2 laser pulses,'' Appl. Opt.  25, 3333 (1986).

M. Sheik-Bahae, H.S. Kwok, ''Controlled CO2 laser melting of Silicon,'' J. Appl. Phys.  63, 518 (1987).

M. Sheik-Bahae, H.S. Kwok, ''Dynamic reflectivity switching of infrared lasers by an inhomogeneous plasma,'' Opt. Lett.  12, 702 (1987).