factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien


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factory Outlets for Germanium Window - 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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factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures

factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures

factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures

factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures

factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures

factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures

factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures

factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien detail pictures


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Our crew through skilled training. Skilled skilled knowledge, strong sense of company, to meet the company wants of customers for factory Outlets for Germanium Window - BaGa4Se7 Crystals – Dien , The product will supply to all over the world, such as: Senegal, New Delhi, Spain, After years of development, we have formed strong ability in new product development and strict quality control system to ensure excellent quality and service. With the support of many long term cooperated customers, our products are welcomed all over the world.
The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
5 Stars By Roberta from Norway - 2017.09.30 16:36
Customer service staff and sales man are very patience and they all good at English, product's arrival is also very timely, a good supplier.
5 Stars By Joseph from San Diego - 2018.09.29 17:23