China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien


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We pursue the management tenet of "Quality is remarkable, Company is supreme, Name is first", and will sincerely create and share success with all clientele for Near Infrared Crystal, Bgse Crystal, Infrared Material, Besides, our company sticks to high quality and reasonable price, and we also offer good OEM services to many famous brands.
China Gold Supplier for Bandpass Interference Filter - 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.


Product detail pictures:

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures

China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien detail pictures


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Fast and great quotations, informed advisers to help you choose the correct solution that suits all your requirements, a short creation time, responsible top quality manage and distinct providers for paying and shipping affairs for China Gold Supplier for Bandpass Interference Filter - BaGa4Se7 Crystals – Dien , The product will supply to all over the world, such as: Peru, Ecuador, Spain, As the world economic integration bringing challenges and opportunities to the xxx industry, our company , by carrying on our teamwork, quality first, innovation and mutual benefit, are confident enough to supply our clients sincerely with qualified merchandise, competitive price and great service, and to build a brighter future under the spirit of higher, faster, stronger with our friends together by carrying on our discipline.
We are really happy to find such a manufacturer that ensuring product quality at the same time the price is very cheap.
5 Stars By Karen from Danish - 2018.09.29 13:24
The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
5 Stars By Ellen from Saudi Arabia - 2018.09.29 17:23