HgGa2S4 Crystal Secrets
HgGa2S4 Crystal Secrets
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.. [Display total summary] parametric oscillator. The 2 independently targeted beams were being made to overlap Within the crystal. The focusing parameters of The 2 beams had been with regards to the exact same. The concentrating perform designed by Boyd and Kleinman for tightly targeted beams was extended to periodically poled crystals so as to healthy the temperature-tuning curve. A 0.sixty six%/W effectiveness was obtained for the real difference frequency mixing system.
It's got extended been predicted which the period difference between the signal and idler subharmonic outputs of the optical parametric oscillator (OPO) undergoes a random walk approach, comparable to the period diffusion of a laser [one].
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The notion of chemical transportation reactions (volatilization of a fabric via a very low-volatile chemical intermediate at a temperature T1 and again-response of the mixture in a temperature T2, using the temperature dependence with the chemical equilibrium concerned) is a beneficial Instrument for developing one crystals of many elements which cannot be simply obtained with the melt.
We report new experimental effects within the stage-matching Attributes of yellow shade HgGa2S4 crystals for harmonic era of the Nd:YAG laser-pumped KTiOPO4 (KTP) optical parametric oscillator (OPO) and CO2 lasers while in the 0.944-10.5910 μm range. In addition, we existing new Sellmeier equations that offer a very good replica in the current experimental effects and also the published data details for next-harmonic generation of CO2 laser radiation at 9.
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The technology of tunable pico- and femtosecond light-weight pulses with parametric frequency conversion procedures has captivated increased awareness recently1. New crystal supplies, as BBO, LBO, and KTP, with superior nonlinearity and large hurt threshold are actually accessible, and pump lasers of improved security allow the responsible operation of optical parametric oscillators. Parametric devices pumped ... [Exhibit entire summary] both by cw modelocked lasers or by single rigorous ultrashort pulses are created. On this contribution parametric programs are talked about which are pumped by intense pulse trains of some microseconds duration and repetition premiums nearly 50Hz.
A method is developed to solve the technique of shortened equations describing parametric era in the one particular-frequency OPO cavity beneath nanosecond pulsed pumping. The frequency conversion coefficient for ZnGeP2, AgGaSe two, and HgGa2S4 crystals and also the optimal reflection coefficient from the output mirror are estimated compared to the pump Strength density Wp at distinct values in the OPO nonstationarity .
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... The first info over the refractive index of orange HGS printed by Levine et al. [35] involved only couple of wavelengths while in the obvious and close to-IR just as an illustration of your feasibility of this crystal for birefringent phase-matching. The here refractive indices to the orange period were being measured and tabulated among 0.
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A pulsed TEA CO2 laser was made use of to investigate the result of pump radiation parameters (manner composition, wavelength, and pulse duration), concentrating problems, absorption coefficient, and temperature to the effectiveness of conversion into the second harmonic and on angular dependences of phase matching in ZnGeP2 crystals. Excellent settlement betweeen experimental and theoretical success is noticed. Examine extra
3% rms around 12 h in superior beam good quality. The near-IR signal pulses within the OPO Have a very Gaussian pulse period of �?19 ps , measured at 1284 nm. We now have investigated the temperature tuning characteristics on the OPO and compared the information While using the theoretical calculations making use of The newest Sellmeier equations and thermo-optic coefficients for your crystal. To the ideal of our knowledge, This is actually the initially picosecond OPO according to CSP working at MHz repetition premiums.