053 μm. The absorption spectrum of ammonia was presented to display the feasibility of your formulated optical parametric oscillator program for spectroscopic measurements and fuel detection.

Output idler energies around the microjoule amount are attained with utmost conversion efficiency of eleven% to the amplifier phase, that is greater than two occasions much better than the effects attained with an analogous sample from the greatly spread materials AgGaS 2 .

The initial-rules density functional calculations are executed to check the geometries and electronic buildings of HgGa2X4 (X = S, Se, Te) semiconductors with defect chalcopyrite structures, plus the optical Houses of all crystals are investigated systematically. The outcome indicate that these compounds have equivalent band structures as well as band gap decreases from S to Se to Te. With the linear optical Attributes, three crystals present superior mild transmission while in the IR and aspect noticeable locations, and especially, HgGa2S4 and HgGa2Se4 crystals possess average birefringence.

In each the situations obtained device mobile parameters are exact, which reveals the precision of existing tactic. The electronic band structures exhibit the semiconducting behavior in equally the circumstances. The density of states plot are also studied and talked about.

in the laser emission wavelength. The minimal calculated history signal in the PA sensor (utilizing large purity

brought about oscillations from the idler wavelength of fewer than 200MHz in excess of 300s; the shorter-term stability was lower than 3MHz

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Pumping mid-IR optical parametric oscillators near 1 μm is eye-catching for its simplicity and ability scaling capability. To this intention, vast bandgap non-oxide nonlinear crystals are wanted.

What's more, we executed a numerical simulation of chirped-pulse OPOs (CPOPOs) and disclosed which the spectral profile with the output from the CPOPO was appropriate to equally the parametric achieve profile of your nonlinear crystal as well as intra-cavity significant-purchase dispersion.

The technological know-how of rising mercury thiogallate crystals (HgGa2S4) is improved and higher-quality bulk samples are manufactured. The fundamental optical and thermal Homes of these crystals are analyzed. The transmission spectra of mercury thiogallate are calculated and its nonlinear qualities such as the quadratic susceptibility, tuning curves, as well as optical-hurt resistance may also be identified.

The defect chalcopyrite crystal HgGa2S4 is employed inside of a 1064-nm pumped optical parametric oscillator to deliver Nonlinear crystals for optical parametric oscillators pumped by light-weight pulses of read more around IR lasers...

12 μm and explain all frequency conversion schemes understood to date with them in addition to long term probable programs. Search phrases: Ternary and quaternary semiconductors, defect chalcopyrites, stable answers, nonlinear optical crystals, mid-infrared

On this paper we theoretically examine essentially the most successful pump temporal condition for pulsed Procedure of optical parametric oscillators (OPOs). The theoretical analysis contains solving the ideal Command issue using the fee equation formalism. The OPO exceptional buildup behavior is derived for just about any OPO configuration, and we display that the best pump pulse condition is actually a double rectangle. The main rectangle is optimized with the buildup course of action, whilst the next one is optimized with the constant condition, and equally count differently over the OPO mirror reflectivities in addition to the accessible pump Strength and optimum peak electric power.

Change frequency mixing of strongly concentrated Gaussian beams in periodically poled LiNbO3 was investigated. The beams were concentrated inside the crystal without problems. Mixing of cw and pulsed laser techniques was used to minimize the thermal lensing outcomes inside this crystal. A small-electricity cw 1.064‐μm Nd:YAG laser beam was made use of because the pump, Whilst the sign beam arrived from a picosecond optical .