053 μm. The absorption spectrum of ammonia was offered to display the feasibility of the developed optical parametric oscillator process for spectroscopic measurements and gas detection.

Final results of thermal conductivity measurements are reported for numerous of the greater lately produced nonlinear optical crystals. New or significantly revised values of thermal conductivity had been received in six supplies. Noteworthy thermal conductivities measured ended up Individuals for AgGaS2 [0.014 W/(cm K) and 0.

The main-concepts density purposeful calculations are executed to study the geometries and Digital constructions of HgGa2X4 (X = S, Se, Te) semiconductors with defect chalcopyrite structures, as well as optical Houses of all crystals are investigated systematically. The outcomes suggest that these compounds have identical band structures plus the band hole decreases from S to Se to Te. For the linear optical Homes, 3 crystals present great light-weight transmission in the IR and section noticeable locations, and particularly, HgGa2S4 and HgGa2Se4 crystals possess moderate birefringence.

The large conversion performance and big selection of radiation wavelength tuning permits to hope that this content may well compete with AgGaS2, AgGaSe2, ZnGeP2 and GaSe crystals Despite the substantial problems of massive size crystals development procedure.

We report new experimental results within the stage-matching Houses of yellow shade HgGa2S4 crystals for harmonic era of an Nd:YAG laser-pumped KTiOPO4 (KTP) optical parametric oscillator (OPO) and CO2 lasers inside the 0.944-10.5910 μm vary. Furthermore, we current new Sellmeier equations that supply a good copy on the existing experimental effects together with the revealed facts details for second-harmonic technology of CO2 laser radiation at 9.

The measured Main degree binding energies are compared with Individuals of HgS, Gasoline, AgGaS2 and SrGa2S4 compounds. The valence band spectrum proves being unbiased over the technological situations of crystal progress. In distinction on the valence band spectrum, the distribution of electron states in the bandgap of HgGa2S4 crystals is observed to generally be strongly dependent on the technological ailments of crystal expansion as shown from the photoluminescence Assessment.

While employing an institutional account for this website we don’t keep track of any personalized, efficiency, purposeful or 1st or 3rd celebration associated details.

A technique is made to resolve the program of shortened equations describing parametric technology inside of a just one-frequency OPO cavity below nanosecond pulsed pumping. The frequency conversion coefficient for ZnGeP2, AgGaSe 2, and HgGa2S4 crystals and also the exceptional reflection coefficient on the output mirror are estimated versus the pump Electricity density Wp at diverse values of your OPO nonstationarity .

Increased-get nonlinear procedures in choice products will also be considered plus a dialogue on product suitability for down-conversion of close to-IR lasers into the mid-IR to meet various software requirements can also be presented.

Matters is often refined even further inside the search engine results. The subject aspect will reveal the superior-stage topics associated with the article content returned from the search results. SPECIAL COLLECTIONS

Interference is observed amongst the spontaneous parametric radiation from two nonlinear crystals divided by a macroscopic

The observed file -to- 2 file frequency beats, originating directly from the OPO, can be employed for self-referencing and period locking in the pump laser comb with no need for supercontinuum generation. With an average output energy of �?thirty mW , this set up is likely to be useful for many different spectroscopic applications in the mid-IR.

In this paper we theoretically examine probably the most productive pump temporal form for pulsed operation of optical parametric oscillators (OPOs). The theoretical Investigation includes fixing the best Handle trouble using the amount equation formalism. The OPO ideal buildup conduct is derived for just about any OPO configuration, and we exhibit the optimum pump pulse shape is a double rectangle. The main rectangle is optimized for the buildup process, while the 2nd a person is optimized for that continual condition, and equally depend in different ways around the OPO mirror reflectivities together with the out there pump Strength and utmost peak electricity.

3% rms above 12 h in excellent beam good quality. The in close proximity to-IR sign pulses within the OPO Have got a Gaussian pulse period of �?19 ps , calculated at 1284 nm. We have now investigated the check here temperature tuning properties of your OPO and as opposed the info Together with the theoretical calculations making use of The latest Sellmeier equations and thermo-optic coefficients to the crystal. To the top of our understanding, This is actually the to start with picosecond OPO dependant on CSP working at MHz repetition costs.