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 resources independently made by Chinese researchers. Due to outstanding thorough overall performance plus the significant application price in laser business, they've got attracted Significantly consideration in the home and abroad.
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We current new experimental success to the stage-matching Homes on the not long ago learned BaGa2GeSe6
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A thermo-optic dispersion system for BaGa2GeSe6 rm BaGa _2 rm GeSe _6 B a G a two G e S e six nonlinear crystal is documented. The experimentally decided temperature-dependent stage-matching situations for second-harmonic and sum-frequency generation 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 four (RTA) optical parametric oscillators in addition to a CO2 rm CO _2 C O 2 laser and its harmonics inside the 0.
Because of the great complete effectiveness and also the significant application worth in laser field, they've captivated much consideration in your house and abroad. The progress of crystal expansion and laser output of BGSe and BGGSe are summarized, and the longer term advancement is prospected.
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Laser-induced injury threshold of your nonlinear crystals BaGa4Se7 and BaGa2GeSe6 at 2091 nm inside the nanosecond routine
The uniaxial nonlinear crystals BaGa2GeS6 and BaGa2GeSe6 are characterised when it comes to thermal diffusivity and unique heat in excess of a temperature number of -ninety to 250 °C for heat propagation alongside and perpendicular for the c -axis.
The conduct of dislocations in the interfacial location involving the epitaxial layer developed in the liquid section as well as substrate of GaAs get more info is investigated. Observations of dislocations lying along the 〈110�?directions have been performed working with an optical microscope right after shallow etching that has a new chemical etchant.
$ rm BaGa _2 rm GeSe _6$ (BGGSe) is often a freshly formulated nonlinear product that is certainly attractive for ultrabroad frequency mixing and ultrashort pulse generation on account of its comparably minimal dispersion and substantial destruction threshold. A numerical study shows the material’s capacity for octave-spanning mid-infrared pulse generation up to eighteen µm. In a primary experiment, we demonstrate that a protracted crystal size of 2.
The pump pulse Strength was controlled by a variable diffraction attenuator. Its polarization was tuned by ninety° with a 50 percent-wave plate because it had to be everyday wave within the BGGSe (when AGS crystal was utilised, the sign beam polarization was tuned). The sign beam was concentrated by spherical mirror (M2, the focal duration of 2 m) right into a gasoline tube of one.
The character of this instability and DFG Electricity decrease will not be very clear for us. One of the reasons is often related by using a nonlinear absorption and plasma development, respectively, that causes reflection/scattering/absorption on the longwave mid-IR pulse. The dependence of BGGSe transmittance on pump pulse Electrical power is presented in Fig.