AgGaGeS4 Crystals

  • Wavefront distortion: less than λ/6 @ 633 nm
  • Dimension tolerance: (W +/-0.1 mm) x (H +/-0.1 mm) x (L +0.2 mm/-0.1 mm)
  • Clear aperture: > 90% central area
  • Flatness: λ/6 @ 633 nm for T>=1.0mm
  • Surface Quality: Scratch/dig 20/10 per MIL-O-13830A
  • Parallelism: better than 1 arc min
  • Perpendicularity: 5 arc minutes
  • Angle tolerance: Δθ < +/-0.25o, Δφ < +/-0.25o
  • Product Detail

    Technical Parameters

    Test report

    The AgGaGeS4  crystal is one of the solid solution crystal with extremely tremendous potential among the increasingly developed new nonlinear crystals. It inherits a high nonlinear optical coefficient(d31=15pm/V), a wide transmission range(0.5-11.5um) and low absorption coefficient(0.05cm-1 at 1064nm). Such excellent properties are of enormous benefit to frequency-shifting near-infrared 1.064um Nd:YAG laser into the Mid-infreard wavwlengths of 4-11um. Besides, it has a better performance than its parent crystals on the laser damage threshold and the range of phase-matching conditions, which is demonstrated by high laser damage threshold, making it compatible with sustained and high-power frequency conversion.
    Due to its higher damage thresholdand greater variety of phase-matching schemes AgGaGeS4 could become an alternative to the widely spread now AgGaS2 in high power and specifific applications.
    The properties of AgGaGeS4 crystal:
    Surface damage threshold: 1.08J/cm2
    Body damage threshold: 1.39J/cm2

    Technical Parameters

    Wavefront distortion  less than λ/6 @ 633 nm
    Dimension tolerance (W +/-0.1 mm) x (H +/-0.1 mm) x (L +0.2 mm/-0.1 mm)
    Clear aperture > 90% central area
    Flatness  λ/6 @ 633 nm for T>=1.0mm
    Surface Quality  Scratch/dig 20/10 per MIL-O-13830A
    Parallelism better than 1 arc min
    Perpendicularity 5 arc minutes
    Angle tolerance Δθ < +/-0.25o, Δφ < +/-0.25o