نتایج جستجو برای: znse: cr2
تعداد نتایج: 1892 فیلتر نتایج به سال:
by analyzing the zero-field-splitting parameters and of cr2+ (3d4) ion located at tetrahedral site in znse crystal, the local structure distortion and absorption spectra around cr2+ in znse: cr2+ system have been calculated on the basis of the complete energy matrix for the d4 configuration within the strong-filed-representation. it is shown that there exists an expansion distortion in the loca...
High-quality monoclinic planar waveguide crystals of Tm-doped KY(WO4)2 codoped with Gd3+ and Lu3+ were grown by liquid-phase epitaxy. For the first time, planar waveguide lasing was demonstrated in a monolithic cavity in the 2 µm spectral range. The laser was operated in the Q-switched mode using a Cr2+:ZnSe crystal as saturable absorber and in the continuous-wave regimes. The Q-switched planar...
For the first time we demonstrate a multiwavelength, ultrabroadband, continuous-wave, tunable, polycrystalline Cr2+:ZnSe spatially-dispersive laser, operating in the near IR spectral region. We show a dual-wavelength operation of the laser, tunable over a 600 nm spectral range (2200-2800 nm), an ultrabroadband operation of the laser, producing a continuous 135 nm wide spectrum centered at 2500 ...
We report on a diode-pumped Tm:LiYF4 laser operating the 3H4 → 3H5 transition (at ∼2.3μm) passively Q-switched by Cr2＋:ZnSe saturable absorber. This delivers maximum average output power of 130 mW at 2304.6 nm with nearly diffraction limited beam, linear polarization (π) and no colasing ∼1.9μm. The corresponding pulse characteristics (duration/energy) are 1.24 μs/3.6 μJ repetition rate 36 kHz. ...
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