The 2-Minute Rule for BaGa2GeSe6 Crystal
The 2-Minute Rule for BaGa2GeSe6 Crystal
Blog Article
BaGa4Se7 (BGSe) and BaGa2GeSe(BGGSe) crystals are novel infrared nonlinear optical products independently produced by Chinese researchers. As a result of great in depth overall performance as well as the crucial application value in laser industry, they have captivated A great deal focus in the home and abroad.
two–10.eight-µm wavelength area. A further critical limitation on the pump energy linked by using a thermal lensing impact in crystal was resolute experimentally. A comparison was crafted from AgGaSe2 and ZnGeP2 crystals as materials ideal for the successful generation of the second harmonic of cw CO2 laser radiation.
spectral array. Also, we current new Sellmeier equations that provide a good replica in the
Another software of this set up is seeding higher-tension CO2-laser amplifier [17]. It ought to be observed that offered set up on the mid-IR laser procedure is comparatively simple and has an awesome likely for energy scalability. Electricity from the entrance-end Ti:sapphire laser might be increased approximately a huge selection of Joules [twelve], however that pump laser will require a broad-aperture BGGSe crystal sample. Also, the DFG pulse energy might be enhanced by an advancement of signal pulse�?uniform spectrum form and amplified Electrical power.
The computer you're utilizing just isn't registered by an institution by using a membership to this text. You should select one of the choices under.
New Center infrared nonlinear optical crystals of BaGa2GeX6(X=S, Se) happen to be synthesized. The constructions of both equally BaGa2GeS6 and BaGa2GeSe6 had been uncovered to be isomorphous exhibiting a three-dimensional framework constructed with the parallel alignment of Ga or Ge tetrahedron teams along the c-aix. The ultraviolet transmittance spectrum implies the short-wavelength absorption edges of BaGa2GeS6 and BaGa2GeSe6 are 380 nm and 440 nm, respectively.
A thermo-optic dispersion method for BaGa2GeSe6 rm BaGa _2 rm GeSe here _6 B a G a 2 G e S e 6 nonlinear crystal is noted. The experimentally established temperature-dependent period-matching disorders for next-harmonic and sum-frequency era of Nd:YAG laser-pumped KTiOPO4 rm KTiOPO _4 K T i O P O 4 (KTP) and RbTiOAsO4 rm RbTiOAsO _4 R b T i O A s O 4 (RTA) optical parametric oscillators as well as a CO2 rm CO _2 C O two laser and its harmonics in the 0.
Because of the great complete general performance as well as the vital application worth in laser business, they have got attracted Considerably notice in the home and abroad. The progress of crystal advancement and laser output of BGSe and BGGSe are summarized, and the future growth is prospected.
77Growth of the new higher-overall performance NLO crystal BaGa2GeSe6 via the managed vapor force technique
Laser-induced damage threshold from the nonlinear crystals BaGa4Se7 and BaGa2GeSe6 at 2091 nm inside the nanosecond routine
The uniaxial nonlinear crystals BaGa2GeS6 and BaGa2GeSe6 are characterized with regards to thermal diffusivity and particular heat in excess of a temperature array of -ninety to 250 °C for heat propagation together and perpendicular to the c -axis.
It has been identified which the optical nonlinear coefficients d31 and d22 in LiNbO3 are of reverse indication, in disagreement using an before report by Other people. This is an important consideration for optimizing nonlinear optical interactions in LiNbO3.
The highest frequency conversion performance of 10⁻⁴ was attained for a relatively new PbIn6Te10 crystal, which is an order of magnitude greater than past benefits.
The pump pulse Strength was controlled by a variable diffraction attenuator. Its polarization was tuned by ninety° with a 50 percent-wave plate because it needed to be normal wave from the BGGSe (when AGS crystal was employed, the sign beam polarization was tuned). The signal beam was concentrated by spherical mirror (M2, the focal length of 2 m) right into a gas tube of one.
The character of the instability and DFG Electrical power decrease is not clear for us. Certainly one of the reasons can be related with a nonlinear absorption and plasma development, respectively, that triggers reflection/scattering/absorption with the longwave mid-IR pulse. The dependence of BGGSe transmittance on pump pulse Electricity is offered in Fig.