HgGa2S4 Crystal - An Overview
HgGa2S4 Crystal - An Overview
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With the arrival of latest nonlinear elements and one-frequency pump resources, There's renewed curiosity in optical parametric oscillators (OPOs). Just one-method diode-laser-pumped monolithic Nd:YAG nonplanar ring laser that's equally amplified and frequency doubled is used to pump a monolithic MgO:LiNbO3 pulsed singly resonant OPO.
Output idler energies to the microjoule stage are obtained with utmost conversion effectiveness of eleven% for that amplifier stage, and that is more than two occasions a lot better than the outcome acquired having an analogous sample in the widely spread material AgGaS 2 .
This method lets the operation of widely tunable optical parametric oscillators2 (OPO) and subsequent difference frequency generators3 developing tunable pulses of significant peak power. The upper Electrical power with the pump pulse trains has certain benefits for the operation of a synchronously pumped OPO, e.g., comfortable balance demands, along with the prospective to operate with large cavity losses (e.g. steel mirrors) allowing massive tuning ranges with an individual set of mirrors and high output-coupling variables for pulse shortening.
By applying intracavity dispersion Manage, close to-completely transform-restricted signal pulses of �?a hundred fs period with easy one-peak spectrum are accomplished at 1264 nm, akin to an idler wavelength at 6440 nm. To the best of our knowledge, this is the first time this sort of sensible idler powers while in the deep-IR are already created from the dispersion-compensated CSP femtosecond OPO at sub-100 MHz repetition fee.
During this do the job, we current what's, to our expertise, the very first measurements from the quantum period diffusion sounds of the cw OPO. Study more
brought about oscillations within the idler wavelength of below 200MHz around 300s; the shorter-expression balance was fewer than 3MHz
Two parametric 4-wave-mixing (FWM) processes in Rb atoms are examined employing perturbation idea beneath the situation of rotating wave approximation. The two parametric FWM procedures are coupled when they are energized coherently by a short laser pulse with a bandwidth encompassing The 2 corresponding upper Electricity amounts in The 2 FWM procedures.
This new version has long been updated and revised to includeimportant developments, principles and systems that haveemerged Because the publication of the first edition.
Bigger-order nonlinear processes in alternative products are considered in addition to a discussion on product suitability for down-conversion of in the vicinity of-IR lasers into your mid-IR to meet numerous application specifications can be offered.
The engineering of developing mercury thiogallate crystals (HgGa2S4) is improved and superior-high quality bulk samples are created. The essential optical and thermal properties of such crystals are analyzed. The transmission spectra of mercury thiogallate are calculated and its nonlinear properties like the quadratic susceptibility, tuning curves, and also the optical-hurt resistance may also be identified.
... The primary details around the refractive index of orange HGS revealed by Levine et al. [35] involved only few wavelengths within the noticeable and close to-IR just as an illustration of your feasibility of this crystal for birefringent period-matching. The refractive indices with the orange phase ended up calculated and tabulated between 0.
Quantum mechanical primarily based 1st basic principle more info calculations happen to be utilized to obtain the device mobile lattice parameters of mercury thiogallate (HgGa2S4) in defect stannite framework for The 1st time. For this, we taken care of HgGa2S4 in two differing types of web page symmetries in the exact same Place group.
New mid-IR NLO crystals could be divided into four groups, i.e., classical binary and ternary metallic pnictides and chalcogenides, quaternary metal chalcogenides, binary and ternary metallic halides, and various-bond-variety hybrid compounds that include at least two forms of of course distinctive chemical bonds within the crystal structures. Metal pnictides and chalcogenides have acquired much notice on growing huge crystals. Diverse-bond-form hybrid is a whole new family of mid-IR NLO components, and a lot of of these were present in the final 10 years. In metallic halide procedure, equally progress in increasing significant crystals and discovering new types happen to be built.
Tuning and stability of a continuous-wave mid-infrared large-electrical power single resonant optical parametric oscillator