80 citations · 297 across the 12 of their papers we have counts for
12 papers
Experimental minimum of condensed-phase optical refrigeration
Zhuoming Zhang, Yang Ding, Peter J. Pauzauskie +3
Since the first demonstration of optical refrigeration in a rare-earth-doped glass nearly 30 years ago, the nascent field of laser cooling solids has progressed significantly. It i…
Laser Cooling of a Yb Doped Silica Fiber by 18 Kelvin From Room Temperature
Brian Topper, Mostafa Peysokhan, Alexander R. Albrecht +10
A ytterbium doped silica optical fiber has been cooled by 18.4K below ambient temperature by pumping with 20W of 1035nm light in vacuum. In air, cooling by 3.6K below ambient was o…
Probing the ultrafast gain and refractive index dynamics of a VECSEL
Christian Kriso, Tim Bergmeier, Nathan Giannini +9
Typically, strong gain saturation and gain dynamics play a crucial role in semiconductor laser mode-locking. While there have been several investigations of the ultrafast gain dyna…
Laser-induced anti-Stokes fluorescence cooling of ytterbium-doped silica glass by more than 6 Kelvin
Mostafa Peysokhan, Saeid Rostami, Esmaeil Mobini +12
Laser cooling of a solid is achieved when a coherent laser illuminates the material, and the heat is extracted by resulting anti-Stokes fluorescence. Over the past year, net solid-…
Laser Cooling of Silica Glass
Esmaeil Mobini, Saeid Rostami, Mostafa Peysokhan +11
Laser cooling of a solid is achieved when a coherent laser illuminates the material in the red tail of its absorption spectrum, and the heat is carried out by anti-Stokes fluoresce…
Tm-doped Crystals for mid-IR Optical Cryocoolers and Radiation Balanced Lasers
Saeid Rostami, Alexander R. Albrecht, Azzurra Volpi +3
We report the complete characterization of various cooling grade Tm-doped crystals including the first demonstration of optical refrigeration in Tm:YLF crystals. Room temperature l…
Gain-Embedded Meta Mirrors for Optically Pumped Semiconductor Disk Lasers
Zhou Yang, David Lidsky, Mansoor Sheik-Bahae
We propose and analyze an active mirror structure that uses a subwavelength grating reflector combined with optical gain. The structure is designed to be directly bonded to a therm…
Observation of Optical Refrigeration in a Holmium-doped Crystal
Saeid Rostami, Alexander R Albrecht, Azzurra Volpi +1
We report the first demonstration of solid-state optical refrigeration of a Ho-doped material. A 1 mol% Ho-doped Yttrium Lithium Fluoride (YLF) crystal is cooled by mid-IR laser ra…
Classical trajectories in polar-asymmetric laser fields: Synchronous THz and XUV emission
Aram Gragossian, Denis V. Seletskiy, Mansoor Sheik-Bahae
Synchronous extreme ultraviolet (XUV) and single-cycle terahertz (THz) bursts are generated in argon plasma induced by intense two-color femtosecond laser pulses. Correlations betw…
Precise Determination of Minimum Achievable Temperature for Solid-State Optical Refrigeration
Denis V. Seletskiy, Seth D. Melgaard, Richard I. Epstein +3
We measure the minimum achievable temperature (MAT) as a function of excitation wavelength in anti-Stokes fluorescence cooling of high purity Yb3+-doped LiYF4 (Yb:YLF) crystal. Suc…
Efficient terahertz emission from InAs nanowires
Denis V. Seletskiy, Michael P. Hasselbeck, Jeffrey G. Cederberg +5
We observe intense pulses of far-infrared electromagnetic radiation emitted from arrays of InAs nanowires. The THz radiation power efficiency of these structures is about 15 times…
Cavity-enhanced absorption for optical refrigeration
Denis V. Seletskiy, Michael P. Hasselbeck, Mansoor Sheik-Bahae
A 20-fold increase over the single path optical absorption is demonstrated with a low loss medium placed in a resonant cavity. This has been applied to laser cooling of Yb:ZBLAN gl…