The 2-Minute Rule for HgGa2S4 Crystal
The 2-Minute Rule for HgGa2S4 Crystal
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Optical parametric oscillator pumped at ~1 µm with intracavity mid-IR difference-frequency technology in OPGaAs
We report with a femtosecond optical parametric oscillator (OPO) with the deep-infrared (deep-IR) based on the Kerr-lens-method-locked Ti:sapphire laser as being the pump supply. By deploying a novel cascaded intracavity arrangement, comprising a femtosecond OPO determined by the nonlinear crystal, CdSiP 2 , synchronously pumped inner to the MgO:PPLN femtosecond OPO, We now have produced broadly tunable radiation across 5958�?117 nm applying swift static cavity delay tuning, that has a highest electric power of sixty four μW at 6791 nm, limited by the absorption in mirror substrates and polarization-dependent intracavity losses.
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By utilizing intracavity dispersion Manage, near-transform-confined sign pulses of �?a hundred fs length with sleek single-peak spectrum are reached at 1264 nm, akin to an idler wavelength at 6440 nm. To the very best of our information, this is The 1st time this sort of sensible idler powers during the deep-IR happen to be generated from a dispersion-compensated CSP femtosecond OPO at sub-100 MHz repetition charge.
In this particular function, we current what's, to our information, the main measurements from the quantum phase diffusion sounds of a cw OPO. Read through a lot more
PA Ref-cell, which drastically reduces themeasurement problems on the methane concentration in thecase of instability
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Pumping mid-IR optical parametric oscillators in close proximity to 1 μm is eye-catching for its simplicity and energy scaling functionality. To this intention, large bandgap non-oxide nonlinear crystals are required.
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The technological know-how of increasing mercury thiogallate crystals (HgGa2S4) is enhanced and large-quality bulk samples are created. The essential optical and thermal Houses of these crystals are analyzed. The transmission spectra of mercury thiogallate are calculated and its nonlinear properties including the quadratic susceptibility, tuning curves, plus the optical-damage resistance are identified.
Normalization of the absorption signals within the PAD is carried out in accordance with the absorption alerts during the fuel-loaded
Quantum mechanical centered first principle calculations have already been used to get the device mobile lattice parameters of mercury thiogallate (HgGa2S4) in defect stannite structure for the first time. For this, we taken care of HgGa2S4 in two differing more info types of website symmetries in exactly the same Place group.
Single-action sub-200 fs mid-infrared era from an optical parametric oscillator synchronously pumped by an erbium fiber laser
three% rms more than 12 h in great beam high quality. The close to-IR signal pulses from the OPO Possess a Gaussian pulse duration of �?19 ps , measured at 1284 nm. We now have investigated the temperature tuning properties with the OPO and as opposed the info with the theoretical calculations using The newest Sellmeier equations and thermo-optic coefficients with the crystal. To the ideal of our expertise, This can be the initial picosecond OPO determined by CSP functioning at MHz repetition premiums.