New Step by Step Map For BaGa2GeSe6 Crystal
New Step by Step Map For BaGa2GeSe6 Crystal
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BaGa4Se7 (BGSe) and BaGa2GeSe(BGGSe) crystals are novel infrared nonlinear optical components independently designed by Chinese researchers. Due to the outstanding thorough general performance and the important software benefit in laser industry, they have attracted A lot interest at your home and overseas.
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New middle infrared nonlinear optical crystals of BaGa2GeX6(X=S, Se) have already been synthesized. The constructions of both BaGa2GeS6 and BaGa2GeSe6 have been discovered being isomorphous exhibiting a three-dimensional framework built via the parallel alignment of Ga or Ge tetrahedron teams together the c-aix. The ultraviolet transmittance spectrum signifies the quick-wavelength absorption edges of BaGa2GeS6 and BaGa2GeSe6 are 380 nm and 440 nm, respectively.
We produce significant-order harmonics from crystalline solids using a tunable mid-IR OPA with fifty kHz repetition level. Utilizing nonlinear self-compression in YAG crystals, we crank out sub a few-cycle pulses at 3.8 μm wavelength for prime harmonic spectroscopy. Browse much more
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77Growth of the new substantial-effectiveness NLO crystal BaGa2GeSe6 through the controlled vapor pressure process
Laser-induced injury threshold in the nonlinear crystals BaGa4Se7 and BaGa2GeSe6 at 2091 nm from the nanosecond routine
24% and that is equivalent with a person received with high repetition fee small-energy laser methods like in [9]. Making an allowance for a possibility to boost pump pulse Strength of our set up as many as ~ten mJ, the DFG pulse Electrical power can be increased as much as ~24 μJ at precisely the same effectiveness, even so, it expected a large-aperture, ~fifteen mm in diameter BGGSe sample. Regular DFG pulse Electricity in AGS wasn't confidently measured with Ophir-3A electrical power meter as a result of its minimal signal.
A thermo-optic dispersion formulation for BaGa2GeSe6 rm BaGa _2 rm GeSe _6 B a G a two G e S e six nonlinear crystal is noted. The experimentally identified temperature-dependent period-matching situations for second-harmonic and sum-frequency technology of Nd:YAG laser-pumped KTiOPO4 rm KTiOPO _4 K T i O P O 4 (KTP) and RbTiOAsO4 rm RbTiOAsO _4 R b T i O A s O four (RTA) optical parametric oscillators in addition to a CO2 rm CO _2 C O 2 laser and its harmonics during the 0.
The highest frequency conversion efficiency of 10⁻⁴ was attained for a comparatively new PbIn6Te10 crystal, which can be an buy of website magnitude bigger than prior final results.
The pump pulse Power was managed by a variable diffraction attenuator. Its polarization was tuned by 90° which has a fifty percent-wave plate mainly because it had to be everyday wave inside the BGGSe (when AGS crystal was used, the signal beam polarization was tuned). The sign beam was focused by spherical mirror (M2, the focal size of two m) into a gasoline tube of one.
The character of the instability and DFG Electrical power decrease isn't distinct for us. Among the reasons may be connected using a nonlinear absorption and plasma formation, respectively, that triggers reflection/scattering/absorption of your longwave mid-IR pulse. The dependence of BGGSe transmittance on pump pulse Electrical power is introduced in Fig.