HgGa2S4 Crystal Secrets
HgGa2S4 Crystal Secrets
Blog Article
With the appearance of latest nonlinear elements and single-frequency pump sources, There may be renewed curiosity in optical parametric oscillators (OPOs). Only one-manner diode-laser-pumped monolithic Nd:YAG nonplanar ring laser that is definitely both of those amplified and frequency doubled is accustomed to pump a monolithic MgO:LiNbO3 pulsed singly resonant OPO.
We report on a femtosecond optical parametric oscillator (OPO) for that deep-infrared (deep-IR) based on the Kerr-lens-method-locked Ti:sapphire laser given that the pump source. 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 produced broadly tunable radiation throughout 5958�?117 nm working with immediate static cavity hold off tuning, having a optimum power of sixty four μW at 6791 nm, limited by the absorption in mirror substrates as well as polarization-dependent intracavity losses.
The first-principles density useful calculations are executed to check the geometries and Digital structures of HgGa2X4 (X = S, Se, Te) semiconductors with defect chalcopyrite structures, and also the optical properties of all crystals are investigated systematically. The effects indicate that these compounds have identical band structures as well as the band hole decreases from S to Se to Te. For your linear optical Attributes, 3 crystals display excellent light-weight transmission while in the IR and element noticeable locations, and particularly, HgGa2S4 and HgGa2Se4 crystals have reasonable birefringence.
The strategy of chemical transportation reactions (volatilization of a material by means of a low-risky chemical intermediate at a temperature T1 and back again-response of your combination in a temperature T2, using the temperature dependence of the chemical equilibrium associated) can be a precious Software for escalating solitary crystals of numerous products which cannot be easily acquired through the melt.
We report new experimental success within the stage-matching Attributes 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 array. In addition, we existing new Sellmeier equations that offer a superior replica of the existing experimental results together with the posted details details for next-harmonic generation of CO2 laser radiation at 9.
The significant conversion performance and big selection of radiation wavelength tuning permits to anticipate that this content may perhaps compete with AgGaS2, AgGaSe2, ZnGeP2 and GaSe crystals Regardless of the significant trouble of massive size crystals expansion method.
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A method is created to solve the system of shortened equations describing parametric era in the a person-frequency OPO cavity below nanosecond pulsed pumping. The frequency conversion coefficient for ZnGeP2, AgGaSe 2, and HgGa2S4 crystals plus the exceptional reflection coefficient of the output mirror are believed vs . the pump Strength density Wp at unique values on the OPO nonstationarity .
The particular warmth and thermal conductivity of HgGa2S4 are calculated. It really is concluded that the blended properties of HgGa2S4 crystals can offer for them a number one position Among the many materials Utilized in nonlinear-optical products for mid-IR-frequency conversion.
The third harmonic of CO2-laser radiation has long been attained by passing the laser beam by way of get more info two CdGeAs2 crystals in tandem, with the first crystal oriented for next-harmonic technology and the 2nd for sum mixing. Using This system, Now we have attained a mean external conversion efficiency of one.
The defect chalcopyrite crystal HgGa2S4 continues to be utilized inside of a 1064-nm pumped optical parametric oscillator to make Nonlinear crystals for optical parametric oscillators pumped by mild pulses of in the vicinity of IR lasers...
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