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BGGSe(BaGa2GeSe6) Crystals Featured Image
  • BGGSe(BaGa2GeSe6) Crystals
  • BGGSe(BaGa2GeSe6) Crystals
  • BGGSe(BaGa2GeSe6) Crystals

BGGSe(BaGa2GeSe6) Crystals

The BaGa2GeSe6 crystal has a high optical damage threshold (110 MW/cm2), a wide spectral transparency range (from 0.5 to 18 μm) and a high nonlinearity (d11 = 66 ± 15 pm/V) , which makes this crystal very attractive for frequency conversion of laser radiation into (or within) the mid-IR range.


  • Chemical formula: BaGa2GeSe6
  • Nonlinear coefficient: d11=66
  • Damage threshold: 110 MW/cm2
  • Transparency range: 0.5 to 18 μm
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    Product Detail

    Basic properties

    Stock List

    The BaGa2GeSe6 crystal has a high optical damage threshold (110 MW/cm2), a wide spectral transparency range (from 0.5 to 18 μm) and a high nonlinearity (d11 = 66 ± 15 pm/V) , which makes this crystal very attractive for frequency conversion of laser radiation into (or within) the mid-IR range. It was proved probably the most efficient crystal for second harmonic generation ofCO- and CO2-laser radiation. It was found that a broadband two-stage frequency conversion of multi-lineCO-laser radiation in this crystal is possible within 2.5-9.0 μm wavelength range with higher efficiency than in ZnGeP2 and AgGaSe2 crystals.
    BaGa2GeSe6 crystals are used for nonlinear optical frequency conversion in their transparency range. The wavelengths at which maximum conversion efficiencies can be obtained and the tuning range for difference-frequency generation are found. It is shown that there are wavelength combinations at which the effective nonlinearity coefficient varies only slightly in a wide frequency band.

    BaGa2GeSe6 crystal's sellmeier equations:
    21

    Compare with ZnGeP2, GaSe, and AgGaSe2 crystals, the properties’s data shown as follows:

    Basic  properties
    Crystal d,pm/V I, MW/cm2
    AgGaSe2 d36=33 20
    GaSe d22=54 30
    BaGa2GeSе6 d11=66 110
    ZnGeP2 d36=75 78

    Model

    Product

    Size

    Orientation

    Surface

    Mount

    Quantity

    BMB000067

    BaGa2GeSe6

    10*10*4.95mm

    θ=25.2°φ=42.7°TypeI

    		 Blank

    Unmounted

    1

    BMB000249

    BaGa2GeSe6

    6*6*10mm

    θ=27°φ=42.7°

    		 Blank

    Unmounted

    1

    BMB000255

    BaGa2GeSe6

    7*7*10.5

    θ=26°φ=42.7°Type1

    		 Blank

    Unmounted

    1

    BMP000341

    BaGa2GeSe6

    5.8*6.1*17.7mm

    θ=22.7°φ=30°Tyep1

    		 Polished,uncoated

    Unmounted

    1

    BMP000608

    BaGa2GeSe6

    5*5*0.5mm

    θ=23°φ=42.7°

    		 Polished,uncoated

    Unmounted

    1

    BMP000641

    BaGa2GeSe6

    5*5*2mm

    θ=23°φ=42.7°

    		 Polished,uncoated

    Unmounted

    4

    BMP000642

    BaGa2GeSe6

    5*5*3mm

    θ=23°φ=42.7°

    		 Polished,uncoated

    Unmounted

    1

    BMP000643

    BaGa2GeSe6

    5*5*2mm

    θ=32.1°φ=12.7°

    		 Polished,uncoated

    Unmounted

    1

    BMP000644

    BaGa2GeSe6

    5*5*1mm

    θ=32.1°φ=12.7°

    		 Polished,uncoated

    Unmounted

    1

    BMP000647

    BaGa2GeSe6

    5*5*1mm

    θ=23°φ=42.7°

    		 Polished,uncoated

    Unmounted

    1

     

     

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