BaGa4Se7 (BGSe) and BaGa2GeSe(BGGSe) crystals are novel infrared nonlinear optical materials independently created by Chinese experts. Due to the excellent detailed performance and the critical application price in laser field, they may have attracted Substantially consideration in your own home and abroad.
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spectral variety. On top of that, we present new Sellmeier equations that give a good copy with the
A further software of this set up is seeding substantial-tension CO2-laser amplifier [seventeen]. It should be pointed out that offered setup of your mid-IR laser program is fairly simple and has an awesome possible for Electrical power scalability. Vitality with the entrance-finish Ti:sapphire laser is often increased as much as numerous Joules [twelve], having said that that pump laser will require a broad-aperture BGGSe crystal sample. Also, the DFG pulse Power might be greater by an improvement of sign pulse�?uniform spectrum shape and enhanced energy.
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77Growth of The brand more info new high-efficiency NLO crystal BaGa2GeSe6 by way of the controlled vapor stress approach
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A top quality BGGSe one crystal with size of 30 mm×ninety mm was developed by Bridgman-stockbarger technique, that's the 1st in China. The effective fabrication of BGGSe crystal gadgets was also attained just after orienting, slicing, and polishing processes, which laid a strong Basis for that even further application exploration of your crystal.
It has been located the optical nonlinear coefficients d31 and d22 in LiNbO3 are of reverse indication, in disagreement using an before report by Other individuals. This is a crucial consideration for optimizing nonlinear optical interactions in LiNbO3.
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The pump pulse Electricity was managed by a variable diffraction attenuator. Its polarization was tuned by ninety° by using a fifty percent-wave plate because it had to be standard wave in the BGGSe (when AGS crystal was made use of, the sign beam polarization was tuned). The sign beam was focused by spherical mirror (M2, the focal length of two m) right into a fuel tube of 1.
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