Not known Facts About HgGa2S4 Crystal
Not known Facts About HgGa2S4 Crystal
Blog Article
and working circumstances for the sensible style of substantial electric power femtosecond optical parametric oscillators with excitation
We report over a femtosecond optical parametric oscillator (OPO) for the deep-infrared (deep-IR) depending on the Kerr-lens-mode-locked Ti:sapphire laser since the pump supply. By deploying a novel cascaded intracavity arrangement, comprising a femtosecond OPO dependant on the nonlinear crystal, CdSiP two , synchronously pumped interior to a MgO:PPLN femtosecond OPO, We've got produced broadly tunable radiation throughout 5958�?117 nm using rapid static cavity hold off tuning, with a maximum electrical power of sixty four μW at 6791 nm, limited with the absorption in mirror substrates and polarization-dependent intracavity losses.
Get hold of us if you need assist accessing this articles Find out about institutional subscriptions Experimental Details This web site is often a preview of subscription content
Scientific tests of viable pump laser systems suitable for ultrafast femtosecond OPOs determined by CdSiP 2 are discussed, along with the favorable linear and nonlinear optical properties, together with distinctive period-matching properties of CdSiP 2 , are offered working with the most recent Sellmeier equations for the material. The described experimental effects depict the best output pulse Vitality and report ordinary energy while in the ultrafast picosecond and femtosecond time scales over the six–seven μm spectral vary up to now.
We report new experimental effects within the phase-matching Attributes of yellow shade HgGa2S4 crystals for harmonic generation of the Nd:YAG laser-pumped KTiOPO4 (KTP) optical parametric oscillator (OPO) and CO2 lasers within the 0.944-ten.5910 μm array. On top of that, we current new Sellmeier equations that supply a superior reproduction in the present experimental benefits in addition to the published facts points for 2nd-harmonic generation of CO2 laser radiation at 9.
The measured core degree binding energies are in comparison with People of HgS, Gasoline, AgGaS2 and SrGa2S4 compounds. The valence band spectrum proves being unbiased over the technological conditions of crystal growth. In distinction to the valence band spectrum, the distribution of electron states in the bandgap of HgGa2S4 crystals is discovered to become strongly dependent upon the technological conditions of crystal development as demonstrated by the photoluminescence analysis.
Optical Attributes of orange phased HgGa2S4 crystal is investigated. Era of tunable Center infrared radiation by next harmonic of tunable CO2 laser radiation has been demonstrated. 2nd harmonic conversion efficiency with respect to other infrared crystal has also been reviewed.
A method is made to resolve the procedure of shortened equations describing parametric technology in a a person-frequency OPO cavity underneath nanosecond pulsed pumping. The frequency conversion coefficient for ZnGeP2, AgGaSe 2, and HgGa2S4 crystals and also the optimal reflection coefficient with the output mirror are approximated vs . the pump Strength density Wp at various values in the OPO nonstationarity .
Vibrational spectra of Li-containing nonlinear crystals and their software in THz radiation era are mentioned. Applying an illustration of LiGaS2, the defect impact on spectroscopic attributes is shown. Higher-temperature annealing in a correct environment enables a single to get rid of extended and place defects also to improve the transparency. Electricity structure and parameters of key stage defects which include anion vacancy (File-Middle) and cation antisite defect GaLi calculated from the 1st concepts agree perfectly Along with the experimental final results.
This paper opinions the current developments in crystal development and singly resonant optical parametric oscillators with the era of significant single pulse Power and ordinary powers while in the mid-IR from three to 10 μm.
Basic strategy for lowering the depolarization reduction ensuing from thermally induced birefringence in good-state lasers
We report a broadband optical parametric oscillator (OPO) pumped by a Yb-doped fiber laser program. By making use of a three hundred μm long magnesium-doped periodically poled LiNbO 3 crystal since the parametric get medium and configuring the OPO as a chirped-pulse oscillator, we acquired mid-infrared emission acquiring an instantaneous bandwidth covering 3084�?466 nm. This end result signifies, to the most beneficial of our awareness, the widest instantaneous bandwidth attained from a Yb-fiber-laser-pumped singly resonant OPO, demonstrating the immense possible of chirped-pulse oscillation in scaling the instantaneous bandwidth of ultra-fast OPOs.
During this paper we theoretically look into quite possibly the most click here efficient pump temporal condition for pulsed Procedure of optical parametric oscillators (OPOs). The theoretical Investigation includes resolving the best Manage trouble utilizing the price equation formalism. The OPO exceptional buildup conduct is derived for any OPO configuration, and we exhibit that the best pump pulse shape is usually a double rectangle. The initial rectangle is optimized for the buildup approach, when the next a person is optimized for your continual state, and equally count in a different way to the OPO mirror reflectivities as well as the accessible pump Power and utmost peak power.
Diode-pumped optical parametric oscillation continues to be demonstrated for The very first time to our understanding in just one Nd:MgO:LiNbO3 nonlinear crystal. The crystal is pumped by a semiconductor diode laser array at 812 nm. The Nd³�?ions absorb the 812-nm radiation to deliver 1084-nm laser oscillation.