BaGa4Se7 (BGSe) and BaGa2GeSe(BGGSe) crystals are novel infrared nonlinear optical supplies independently produced by Chinese researchers. Because of the exceptional complete effectiveness plus the crucial application value in laser field, they have captivated A great deal interest in your own home and abroad.
The pc you will be applying is not really registered by an institution using a membership to this short article. You should select one of the choices below.
We current new experimental benefits to the stage-matching properties with the lately uncovered BaGa2GeSe6
Yet another application of the set up is seeding large-strain CO2-laser amplifier [seventeen]. It should be observed that introduced setup with the mid-IR laser program is comparatively basic and has a terrific prospective for energy scalability. Power of your entrance-stop Ti:sapphire laser is usually improved nearly numerous Joules [twelve], nonetheless that pump laser will require a broad-aperture BGGSe crystal sample. Also, the DFG pulse Electrical power can be enhanced by an enhancement of signal pulse�?uniform spectrum condition and improved Electricity.
This Site makes use of cookies to deliver some of our products and services as well as for analytics and to offer you a more customized expertise.
The dislocations are traced through the repetition of etching from epitaxial layer towards the interface. The final results exhibit that dislocations within the substrates are anticipated to bend together the path standard on the epitaxial development direction within the interface.
Which crystal type of ZrO//two is cryStallized from Zr(OH)//4 relied on the drinking water vapor pressures during the crystallization phase. The contents of monoclinic crystals improved Together with the h2o vapor pressures. Examine extra
The progress of crystal progress and laser output of BGSe and BGGSe are summarized, and the long run development is prospected.
77Growth of The brand new significant-efficiency NLO crystal BaGa2GeSe6 via the managed vapor tension strategy
Be a part of ResearchGate to find out and stay awake-to-day with the most up-to-date study from main experts in CO2 Laser and many other scientific matters.
A top quality BGGSe solitary crystal with dimensions here of 30 mm×90 mm was grown by Bridgman-stockbarger process, and that is the 1st in China. The prosperous fabrication of BGGSe crystal products was also accomplished immediately after orienting, cutting, and polishing processes, which laid a solid Basis for your even more software analysis from the crystal.
A thermo-optic dispersion formula for BaGa2GeSe6 rm BaGa _2 rm GeSe _6 B a G a two G e S e six nonlinear crystal is described. The experimentally identified temperature-dependent period-matching conditions for 2nd-harmonic and sum-frequency technology 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 four (RTA) optical parametric oscillators in addition to a CO2 rm CO _2 C O 2 laser and its harmonics while in the 0.
The very best frequency conversion performance of ten⁻⁴ was acquired for a relatively new PbIn6Te10 crystal, that is an order of magnitude increased than previous outcomes.
The pump pulse Strength was controlled by a variable diffraction attenuator. Its polarization was tuned by ninety° that has a half-wave plate because it had to be normal wave within the BGGSe (when AGS crystal was made use of, the sign beam polarization was tuned). The sign beam was centered by spherical mirror (M2, the focal length of two m) into a gas tube of one.
The nature of the instability and DFG energy lessen is not crystal clear for us. Certainly one of the reasons might be similar by using a nonlinear absorption and plasma formation, respectively, that causes reflection/scattering/absorption of your longwave mid-IR pulse. The dependence of BGGSe transmittance on pump pulse Vitality is offered in Fig.