BaGa4Se7 (BGSe) and BaGa2GeSe(BGGSe) crystals are novel infrared nonlinear optical supplies independently developed by Chinese scientists. As a result of exceptional comprehensive overall performance plus the important software worth in laser business, they've attracted Considerably awareness in your own home and overseas.

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New Center infrared nonlinear optical crystals of BaGa2GeX6(X=S, Se) are actually synthesized. The structures of both equally BaGa2GeS6 and BaGa2GeSe6 ended up located being isomorphous exhibiting a three-dimensional framework made via the parallel alignment of Ga or Ge tetrahedron groups alongside the c-aix. The ultraviolet transmittance spectrum indicates the quick-wavelength absorption edges of BaGa2GeS6 and BaGa2GeSe6 are 380 nm and 440 nm, respectively.

We deliver large-get harmonics from crystalline solids employing a tunable mid-IR OPA with fifty kHz repetition price. Using nonlinear self-compression in YAG crystals, we create sub 3-cycle pulses at 3.eight μm wavelength for high harmonic spectroscopy. Study more

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A thermo-optic dispersion system for BaGa2GeSe6 rm BaGa _2 rm GeSe _6 B a G a 2 G e S e six nonlinear crystal is described. The experimentally decided temperature-dependent period-matching situations for second-harmonic and sum-frequency era of Nd:YAG laser-pumped KTiOPO4 rm KTiOPO _4 K T i O P O four (KTP) and RbTiOAsO4 rm RbTiOAsO _4 R b T i O A s O 4 (RTA) optical parametric oscillators in addition to a CO2 rm CO _2 C O 2 laser and its harmonics while in the 0.

Due to the great thorough functionality along with the crucial application worth in laser industry, they've got attracted Significantly focus at your home and abroad. The progress of crystal development and laser output of BGSe and BGGSe are summarized, and the long run improvement is prospected.

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Laser-induced harm threshold of the nonlinear crystals BaGa4Se7 and BaGa2GeSe6 at 2091 nm during the nanosecond regime

The uniaxial nonlinear crystals BaGa2GeS6 and BaGa2GeSe6 are characterised with regard to thermal diffusivity and particular warmth above a temperature array of -ninety to 250 °C for warmth propagation along and perpendicular to the c -axis.

The pertinent Qualities and conventions used for the freshly rising acentric monoclinic crystals belonging for the borate spouse and children are summarized and tabulated. The derivations are expected to aid establish adherence to uniform nomenclature and conventions for these novel inorganic nonlinear crystals, also to reduce ambiguity and rising confusion while in the literature As well as in the economic specifications. The overall expressions with the successful nonlinearity are diminished for triclinic crystals of issue team 1 to simplified kinds in the principal planes.

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The pump pulse energy was managed by a variable diffraction attenuator. Its polarization was tuned by 90° using a 50 %-wave plate mainly because it had to be regular wave during the BGGSe (when AGS crystal was applied, the signal beam polarization was tuned). The signal beam was focused by spherical mirror (M2, the focal length of two m) into a gasoline tube of one.

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