Fascination About HgGa2S4 Crystal
Optical parametric oscillator pumped at ~1 µm with intracavity mid-IR distinction-frequency generation in OPGaAsWe report on a femtosecond optical parametric oscillator (OPO) to the deep-infrared (deep-IR) based on the Kerr-lens-mode-locked Ti:sapphire laser as being the pump resource. By deploying a novel cascaded intracavity arrangement, comprising a femtosecond OPO according to the nonlinear crystal, CdSiP 2 , synchronously pumped inner to the MgO:PPLN femtosecond OPO, We've generated broadly tunable radiation across 5958�?117 nm applying fast static cavity delay tuning, which has a highest electricity of 64 μW at 6791 nm, minimal with the absorption in mirror substrates as well as polarization-dependent intracavity losses.
This system makes it possible for the Procedure of widely tunable optical parametric oscillators2 (OPO) and subsequent change frequency generators3 manufacturing tunable pulses of large peak power. The upper Power of your pump pulse trains has specified Advantages with the operation of the synchronously pumped OPO, e.g., peaceful balance necessities, and also the probable to operate with large cavity losses (e.g. metallic mirrors) making it possible for significant tuning ranges with just one list of mirrors and superior output-coupling variables for pulse shortening.
By applying intracavity dispersion control, in the vicinity of-completely transform-constrained signal pulses of �?one hundred fs duration with clean single-peak spectrum are reached at 1264 nm, equivalent to an idler wavelength at 6440 nm. To the most beneficial of our expertise, That is The very first time such useful idler powers inside the deep-IR are generated from the dispersion-compensated CSP femtosecond OPO at sub-a hundred MHz repetition fee.
Self-referenced octave-broad subharmonic GaP optical parametric oscillator centered at 3 μm and pumped by an Er-fiber laser
This double rectangle is quantitatively explained and is particularly in step with previous success documented from the literature. Also, numerical simulations are utilized to validate our analytical product with a doubly resonant OPO and clearly show dependable benefits. The numerical simulations also exhibit that an optimum major-hat temporal profile could provide performances really near to those realized Together with the optimal double rectangle.
Two parametric 4-wave-mixing (FWM) processes in Rb atoms are analyzed using perturbation principle beneath the issue of rotating wave approximation. The 2 parametric FWM processes are coupled when they are enthusiastic coherently by a brief laser pulse with a bandwidth encompassing the two corresponding upper Vitality concentrations in The 2 FWM processes.
Determined by the theories of stage matching and suitable composition ratio, the affect of composition ratio over the frequency conversions of two types (phases) of Cd doped Hg1-xCdxGa2S4 was investigated. In thing to consider of corresponding sellmeier equations, section matching diagrams of second harmonic generation and optical parametric oscillations pumped by the popular Nd3+:YAG and Ho3+:YLF lasers have been calculated, in addition to appropriate composition ratios with numerous compositions.
What's more, we done a numerical simulation of chirped-pulse OPOs (CPOPOs) and discovered that the spectral profile on the output from a CPOPO was suitable to equally the parametric get profile of your nonlinear crystal as well as the intra-cavity significant-purchase dispersion.
The 3rd harmonic of CO2-laser radiation has been received by passing the laser beam through two CdGeAs2 crystals in tandem, with the primary crystal oriented for next-harmonic generation and the next for sum mixing. Working with This method, Now we have achieved an average external conversion performance of 1.
The system relies on group velocity matching in between interacting waves In combination with birefringent period matching. We are going to describe broadband SHG properties with regard to beam propagation Instructions, spectral positions of resonance, effective nonlinearities, spatial stroll-offs involving interacting beams, and spectral bandwidths. The outcomes will show which the spectral bandwidths of the basic wave allowed for broadband SHG to reach a number of many nm. The corresponding SH spectral range spans from 1758.58 to 4737.18 nm from the non-oxide crystals deemed During this examine. Such broadband SHG employing shorter pulse trains can perhaps be placed on frequency up-conversion imaging within the mid-IR region, in details transmission, As well as in nonlinear optical sign processing.
Quantum mechanical primarily based initially theory calculations are actually employed to get the unit mobile lattice parameters of mercury thiogallate (HgGa2S4) in defect stannite composition for The 1st time. For this, we dealt with HgGa2S4 in two different types of website symmetries in a similar Area group.
The selected nonlinear crystals exhibit bigger nonlinear conversion efficiency as compared to AgGaS 2 , with BaGa 2 GeS six Furthermore providing a narrower angular spectrum of spontaneous parametric down conversion, useful in interferometric strategies. Our conclusions build a pathway for integrating State-of-the-art crystal systems into mid-infrared metrology and imaging methods, location the phase for foreseeable future developments in nonlinear interferometry and spectroscopy.
3% rms around twelve h in great beam high quality. The close to-IR signal pulses within the OPO click here Have a very Gaussian pulse duration of �?19 ps , calculated at 1284 nm. Now we have investigated the temperature tuning traits of your OPO and as opposed the data With all the theoretical calculations employing the most recent Sellmeier equations and thermo-optic coefficients for your crystal. To the top of our expertise, Here is the first picosecond OPO according to CSP running at MHz repetition rates.