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它的独特性质可用于研究各种现象和开发新技术，使其成为科学研究中的宝贵工具。
Silver Thiogallate (AgGaS2, AGS) has been shown being an successful crystal for nonlinear parametric interactions during the infrared spectral range. Its transparency location ranges from 0,53 to 12 µm. AGS primarily based optical parametric oscillators function continually tunable radiation above an array of wavelengths during the infrared spectral range. Large transparency during the short wavelength variety beginning at 550 nm is used in OPOs pumped by Nd:YAG laser.
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Determined by the results of density functional theory calculations, a theoretical process to structure the inorganic nonlinear optical (NLO) crystals for the second harmonic technology (SHG) is introduced. In this process, a specialized genetic algorithm (GA) is adopted to search the steady constructions in the inorganic crystal with known compositions, and after that with the noncentrosymmetric stable constructions, the second purchase nonlinear optical Attributes may be examined by calculating the corresponding SHG coefficients. In contrast to the conventional GA strategies, the leading function in the current strategy would be that the coordination fashions from the making units are launched to assemble constructions of people over the GA process, which might definitely Enhance the effectiveness and accomplishment charge of acquiring the stable framework of inorganic crystals.
Final results on band constructions, density of states, and cost-density distributions are presented. We report also our effects on optical properties similar to the complicated dielectric features as well as refractive index n of the AgGaS2AgGaS2 and AgGaSe2AgGaSe2 crystals. We examine intimately the buildings from the dielectric functionality noticed during the analyzed Electricity area.
What's the efficiency array of up-conversion of CO2 laser radiation graphic into in close proximity to-IR or visible location employing AgGaS2 crystal? Up-conversion of CO2 laser radiation image into in the vicinity of-IR or noticeable area applying AgGaS2 crystal has an performance approximately thirty%.
The second harmonic generation (SHG) coefficients of nonlinear optical crystals Participate in a vital job in measuring the nonlinear optical Homes of components, however it is time-consuming to find the SHG coefficients from the theoretical calculation. With this paper, we proposed two varieties of parallel computing schemes for the SHG coefficients dependant on Concept Passing Interface (MPI). If the level of nodes is modest, We're going to pick the the grasp slave product and statically allocated tasks, on the other hand, We'll decide on the get the job done pool mode for large volume of nodes, that may stop the principle node to put up with bottlenecks and have a sufficient load balancing.
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Utilizing the evolutionary algorithm combined with the primary-ideas calculations, the stoichiometry as well as the structure of a different loved ones of Al-Ga-S ternary sulfides are explored, and a layered configuration with the R3m space team is predicted as the most secure framework of here AlGaS3. The next order nonlinear optical (NLO) Attributes of AlGaS3-R3m stage are additional calculated, and our results expose that it is a promising candidate to the mid-infrared NLO materials. In addition to the higher laser damage threshold and The nice stage match ability during the transmission selection 0.4 - 24 μm that addresses many of the mid-IR Home windows, the second harmonic era (SHG) of AlGaS3-R3m is about 4 moments more powerful than that with the commercial AgGaS2 crystal.
The mechanical, thermal and optical properties of newly predicted tetragonal NaGaS2 are noted by initially-basic principle DFT calculations. So that you can verify the trustworthiness of your calculation technique, we also calculated these Qualities of AgGaS2. The received values of AgGaS2 are in good accord with the existing experimental and theoretical info. The Examination of your elastic constants and modulus, anisotropy factors and also the linear compressibilities indicates NaGaS2 crystal, getting the stable mechanical composition, are the anisotropic content, and its capability to resist the compression is more powerful than The form adjust.
These facts permitted us to refine the Sellmeier equations of the a few principal refractive indices. These equations are valid around all the transparency ... [Present entire abstract] choice of GdCOB and afterwards could be utilized to compute the tuning curves of infrared optical parametric generation.
KTP is mostly employed for frequency-doubled Nd:YAG as well as other Nd-doped lasers, particularly in lower to medium energy lasers. To this point, the use of KTP for intracavity and further cavity frequency doubling of Nd-doped lasers has progressively changed obvious-mild dye lasers and tunable sapphire lasers. In lots of industrial scientific tests, this sort of laser is widely utilised to be a eco-friendly gentle resource.
coefficients of nonlinear optical crystals dependant on MPI,�?offered for the eleventh Global Symposium on
Economical ab initio technique to the calculation of frequency-dependent second-buy optical reaction in semiconductors