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We present new experimental final results for that section-matching Houses of the a short while ago found out BaGa2GeSe6
New Center infrared nonlinear optical crystals of BaGa2GeX6(X=S, Se) have been synthesized. The constructions of equally BaGa2GeS6 and BaGa2GeSe6 ended up identified being isomorphous exhibiting a three-dimensional framework produced through the parallel alignment of Ga or Ge tetrahedron groups together the c-aix. The ultraviolet transmittance spectrum suggests the limited-wavelength absorption edges of BaGa2GeS6 and BaGa2GeSe6 are 380 nm and 440 nm, respectively.
We generate higher-buy harmonics from crystalline solids employing a tunable mid-IR OPA with 50 kHz repetition price. Working with nonlinear self-compression in YAG crystals, we make sub a few-cycle pulses at three.eight μm wavelength for high harmonic spectroscopy. Study extra
The dislocations are traced from the repetition of etching from epitaxial layer on the interface. The results demonstrate that dislocations during the substrates are anticipated to bend together the direction standard on the epitaxial development path at the interface.
0 Abstract Summary: BaGa4Se7 (BGSe) and BaGa2GeSe6 (BGGSe) crystals are novel infrared nonlinear optical products independently made by Chinese scientists. As a result of fantastic complete effectiveness as well as important software benefit in laser marketplace, they may have captivated Considerably awareness in your own home and abroad.
Intraband magnetotransmission and magnetophotoconductivity had been calculated nearly eighteen T working with CO2 laser traces. The cyclotron resonance and blended resonance harmonics are utilised to find out the Trade interaction within an HgMnTe crystal. The experiment also evidences the freezing of electrons during the donor state. Go through extra
ZnGa2Se4, a nonlinear product with extensive mid infrared transparency and very good thermomechanical properties
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24% which happens to be similar with one particular acquired with higher repetition fee lower-Vitality laser units like in [9]. Bearing in mind a risk to raise pump pulse Vitality of our set up as much as ~10 mJ, the DFG pulse energy can be elevated around ~24 μJ at precisely the same performance, nevertheless, it required a large-aperture, ~15 mm in diameter BGGSe sample. Regular DFG pulse Electricity in AGS wasn't confidently calculated with Ophir-3A ability meter due to its small sign.
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 described. The experimentally decided temperature-dependent phase-matching situations for next-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 BaGa2GeSe6 Crystal harmonics inside the 0.
The highest frequency conversion effectiveness of ten⁻⁴ was attained for a comparatively new PbIn6Te10 crystal, which is an buy of magnitude greater than past final results.
The pump pulse Vitality was managed by a variable diffraction attenuator. Its polarization was tuned by ninety° using a 50 %-wave plate as it needed to be standard wave from the BGGSe (when AGS crystal was used, the signal beam polarization was tuned). The sign beam was concentrated by spherical mirror (M2, the focal size of 2 m) into a gas tube of 1.
BaGa2GeSe6 crystals are used for nonlinear optical frequency conversion within their transparency range. The wavelengths at which optimum conversion efficiencies might be attained as well as tuning variety for variance-frequency generation are observed.