HgGa2S4 Crystal - An Overview

HgGa2S4 Crystal - An Overview

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Optical parametric oscillator pumped at ~1 µm with intracavity mid-IR difference-frequency technology in OPGaAs

We report on a femtosecond optical parametric oscillator (OPO) to the deep-infrared (deep-IR) dependant on the Kerr-lens-mode-locked Ti:sapphire laser since the pump supply. By deploying a novel cascaded intracavity arrangement, comprising a femtosecond OPO based on the nonlinear crystal, CdSiP 2 , synchronously pumped inside to the MgO:PPLN femtosecond OPO, We've got produced broadly tunable radiation across 5958�?117 nm employing speedy static cavity delay tuning, using a maximum electric power of sixty four μW at 6791 nm, confined via the absorption in mirror substrates and polarization-dependent intracavity losses.

The primary-concepts density practical calculations are done to study the geometries and Digital structures of HgGa2X4 (X = S, Se, Te) semiconductors with defect chalcopyrite structures, along with the optical Homes of all crystals are investigated systematically. The outcomes suggest that these compounds have identical band buildings as well as band gap decreases from S to Se to Te. To the linear optical Homes, three crystals clearly show great mild transmission during the IR and element seen locations, and especially, HgGa2S4 and HgGa2Se4 crystals possess average birefringence.

In equally the cases obtained unit cell parameters are exact, which displays the precision of present technique. The Digital band structures present the semiconducting actions in each the circumstances. The density of states plot also are examined and discussed.

in the laser emission wavelength. The minimum measured track record sign of the PA sensor (using higher purity

PA Ref-mobile, which noticeably minimizes themeasurement mistakes on the methane concentration in thecase of instability

Taxonomy, chemical bonding relations and nonlinear optical Houses of noncentrosymmetric sulfide crystals

We current a numerical study for the look of successful MgO:PPLN based mostly pulsed nanosecond optical parametric oscillator (OPO), with input pump pulses of top rated-hat transverse intensity profile, and a double-go pump cavity configuration. Especially, we investigate the outcome of domain shape over the conversion effectiveness. We regarded two varieties of domain buildings: "best vertical-wall" and "wedge-shaped" domains and our numerical success demonstrate that at larger pump pulse energies, the conversion efficiency saturates, plus the saturated efficiency is nearly unbiased in the area shapes.

Greater-get nonlinear procedures in choice components are also considered plus a discussion on content suitability for down-conversion of close to-IR lasers into your mid-IR to satisfy numerous software requirements can also be presented.

This paper testimonials the modern developments in crystal progress and singly resonant optical parametric oscillators to the era of higher single pulse Electrical power and ordinary powers from the mid-IR from three to 10 μm.

Interference is noticed involving the spontaneous parametric radiation from two nonlinear crystals here divided by a macroscopic

We report a broadband optical parametric oscillator (OPO) pumped by a Yb-doped fiber laser process. By using a three hundred μm very long magnesium-doped periodically poled LiNbO three crystal since the parametric attain medium and configuring the OPO as a chirped-pulse oscillator, we received mid-infrared emission owning an instantaneous bandwidth masking 3084�?466 nm. This consequence signifies, to the most effective of our awareness, the widest instantaneous bandwidth attained from a Yb-fiber-laser-pumped singly resonant OPO, demonstrating the enormous possible of chirped-pulse oscillation in scaling the instantaneous bandwidth of ultra-quickly OPOs.

Mid-IR second-purchase NLO crystal is indispensable within the frequency conversion purposes while in the mid-IR area. As opposed with DUV and UV/Vis/in the vicinity of-IR NLO crystals, useful mid-IR NLO crystals are fairly exceptional, and several of these are still for the stage of laboratory research. This chapter opinions the recent progress on the mid-IR NLO crystals, which primarily involves escalating the classical mid-IR NLO crystals into big high-quality ones or into quasi-period-matching structures that are appropriate for the laser products by different growth procedures and exploring new probable mid-IR NLO crystals by introducing new design and synthesis approaches.

Change frequency mixing of strongly concentrated Gaussian beams in periodically poled LiNbO3 was investigated. The beams were being concentrated In the crystal without the need of destruction. Mixing of cw and pulsed laser units was used to reduce the thermal lensing outcomes within this crystal. A minimal-electrical power cw 1.064‐μm Nd:YAG laser beam was used as the pump, Whilst the sign beam came from the picosecond optical .