BGSe (BaGa4Se7) Nonlinear Crystal
BGSe (BaGa4Se7) Nonlinear Crystal
BaGa4Se7 (BGSe for short) has large band gap (2.64eV), wide light transmission range (0.47~18μm), large nonlinear effect (d11=24.3 pm/V, d13=20.4 pm/V) and moderate birefringence （Δn=0.06@2μm）. BGSe crystal has good growth performance, and it is easy to obtain large-size and high-quality single crystals, which is suitable for high power output. BGSe crystal can be pumped by 1~3μm laser, and the highest tunable laser can reach 18 μm.
Key Features and Applications
- Wide pump source range and tunable infrared output band (3-18 μm).
- 2μm pump can realize non-critical phase matching (NCPM) and output high-power long-wave infrared laser with more than 10 μm.
- OPA, OPO, DFG and other spectrum and detection fields.
Specifications
| Parameter | Specifications |
|---|---|
| Transmission Range | 0.47 - 18 μm |
| Lattice Constant | a＝7.6252（15）Å，b＝6.5114（13）Å，c=14.702(4)Å，β＝121.24(2)，Z＝2 |
| Density | 5.16 g/cm³ |
| Nonlinear Coefficient | (d 11 )=24.3 pm/V |
| Melting Point | 1029℃ |
| Absorptivity | <0.01 cm⁻¹ @ 2.09 µm |
| Thermal Conductivity | <1.0 W/M/°C |
| Damage Threshold | 156 MW/cm² @8.6ns, 1.053μm |
Data Sheet: BGSe (BaGa4Se7) Nonlinear Crystal (PDF)
Dimensions, orientation and coatings are made to order - send us your specification for a quotation.
