Massive Selection for Er Yag Dental Laser Crystal - BaGa4Se7 Crystals – Dien


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Massive Selection for Er Yag Dental Laser Crystal - BaGa4Se7 Crystals – Dien Detail:

High-quality crystals of BGSe (BaGa4Se7) is the selenide analogue of the chalcogenide compound BaGa4S7, whose acentric orthorhombic structure was identified in 1983 and the IR NLO effect was reported in 2009, is a newly developed IR NLO crystal. It was obtained via the Bridgman–Stockbarger technique. This crystal exhibits high transmittance over the wide range of 0.47–18 μm, except for an absorption peak at around 15 μm.
The FWHM of the (002) peak rocking curve is about 0.008° and the transmittance through a polished 2 mm thick (001) plate is around 65% over the wide range of 1–14 μm. Various thermophysical properties were measured on crystals.
The thermal expansion behavior in BaGa4Se7 does not exhibit strong anisotropy with αa=9.24×10−6 K−1, αb=10.76×10−6 K−1, and αc=11.70×10−6 K−1 along the three crystallographic axes. The thermal diffusivity/thermal conductivity coefficients measured at 298 K are 0.50(2) mm2 s−1/0.74(3) W m−1 K−1, 0.42(3) mm2 s−1/0.64(4) W m−1 K−1, 0.38(2) mm2 s−1/0.56(4) W m−1 K−1, along the a, b, c crystallographic axis respectively.
In addition, the surface laser damage threshold was measured to be 557 MW/cm2 using a Nd:YAG (1.064 μm) laser under conditions of 5 ns pulse width, 1 Hz frequency, and D=0.4 mm spot size.
BGSe (BaGa4Se7) crystal exhibits a powder second harmonic generation (SHG) response that is approximately 2–3 times that of AgGaS2. The surface laser damage threshold is about 3.7 times that of AgGaS2 crystal under identical conditions.
BGSe crystal has a large nonlinear susceptibility, and may have a broad prospect for practical applications in the mid-IR spectral region.It shows interesting terahertz phonon-polaritons and high nonlinear coefficients for terahertz generation.
Advantages for IR laser output:
Suitable for various pumping source (1-3μm)
Wide tunable IR output range (3-18μm)
OPA, OPO, DFG, intracavity/extravity, cw/pulse pumping
Important notice: Since this this a new type crystal, inside crystal may have few streaks, but we do not accept returnment due to this defect.


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Massive Selection for Er Yag Dental Laser Crystal - BaGa4Se7 Crystals – Dien detail pictures

Massive Selection for Er Yag Dental Laser Crystal - BaGa4Se7 Crystals – Dien detail pictures

Massive Selection for Er Yag Dental Laser Crystal - BaGa4Se7 Crystals – Dien detail pictures


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We now have our own gross sales team, style and design workforce, technical crew, QC workforce and package group. We now have strict quality manage procedures for each system. Also, all of our workers are experienced in printing industry for Massive Selection for Er Yag Dental Laser Crystal - BaGa4Se7 Crystals – Dien , The product will supply to all over the world, such as: Montpellier, Singapore, Qatar, We have more than 200 staff including experienced managers, creative designers, sophisticated engineers and skilled workers. Through hard work of all employees for the past 20 years own company grew stronger and stronger. We always apply the "client first" principle. We also always fulfill all contracts to the point and therefore enjoy excellent reputation and trust among our customers. You are very welcome to personally visit our company.We hope to start a business partnership on the basis of mutual benefit and successful development . For more information please do no hesitate to contact us..
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5 Stars By Judith from Bangkok - 2018.06.30 17:29