Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kalin Spariosu"'
Publikováno v:
Lasers in Surgery and Medicine. 24:253-260
Background and Objective Previous studies of transmyocardial laser revascularization have reported open channels after ultraviolet laser treatment and closed channels with infrared lasers. We speculated that differences in long-term channel patency w
Publikováno v:
Optics Communications. 104:71-74
Cr 4+ : GSGG has been utilized for the first time to provide a saturable absorber Q -switch for the ruby laser. Single output pulse operation (100 mJ and 27 ns duration) with efficiencies relative to the free-running ruby laser operation of 25–30%
Autor:
Kalin Spariosu, Jen-Shih Chang
Publikováno v:
Journal of the Physical Society of Japan. 62:97-104
The study of dust particle charging characteristics under a magneto-plasma has been conducted numerically. The numerical modelling was presented for ion to electron temperature ratio, e =( T i / T e ), from 0.1 to 1, the dimensionless electron gyrora
Publikováno v:
Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1991, 01 (C7), pp.C7-422-C7-422. ⟨10.1051/jp4:19917110⟩
Journal de Physique IV Proceedings, EDP Sciences, 1991, 01 (C7), pp.C7-422-C7-422. ⟨10.1051/jp4:19917110⟩
No abstract available
Publikováno v:
SPIE Proceedings.
Fiber laser pumped Er:YOS laser action near 1600 nm was achieved at room temperature. Etalons and a diffraction grating were used to generate and control broad-band laser action near the 1600 nm emission center. Efficient operation was achieved in a
Publikováno v:
SPIE Proceedings.
We demonstrate passively Q switched 2% doped Er:YAG laser operation in the eyesafe region with sub 5 nsec pulse widths using Cr 2+ :ZnSe as a saturable absorber. A rod geometry operating in the burst mode and a micro slab geometry operating continuou
Autor:
Victor Leyva, Kalin Spariosu
Publikováno v:
SPIE Proceedings.
We demonstrate Er:YAG laser operation at 1617nm with 6W output power and good beam quality (M-squared = 1.5) using a Volume Bragg Grating (VBG) as a wavelength selective output coupler. The low quantum defect operation of 5% is achieved by resonant p
Publikováno v:
Advanced Solid State Lasers.
Saturable absorber Q-switching of the 1.54 μm Er:glass laser using U4+:SrF2 has been obtained for the first time. Q-switched pulses of 3 mJ, 60 nanoseconds FWHM were achieved using a 2.69 mm thick Q-switch in a 14 cm long flat-flat cavity, with a 3
Autor:
Robert D. Stultz, S. T. Montgomery, Bruce H. T. Chai, Kalin Spariosu, Milton Birnbaum, Marly B. Camargo
Publikováno v:
Advanced Solid State Lasers.
Laser action at 300K was demonstrated in Er:Y2SiO5 (Er:YOS) using a 1.53μm Er:glass laser pump. A single pulse of less than 300ns (full width half maximum) at 1.633μm was obtained.
Publikováno v:
Applied Physics Letters. 62:2763-2765
Passive Q switching of an Er:phosphate glass laser using Er:Ca5(PO4)3F (Er:FAP) as a saturable absorber intracavity (IC) load is described for the first time. Q‐switched output was obtained consisting of a 6‐mJ single pulse of 83 ns full width at