AGGSe(AgGaGe5Se12) Crystals

AgGaGe5Se12 is a promising new nonlinear optical crystal for frequency-shifting 1um solid state lasers into the mid-infrared (2-12mum) spectral range.

Dimension tolerance: (W +/-0.1 mm) x (H +/-0.1 mm) x (L + 1 mm/-0.5 mm)

Clear aperture: > 90% central area

Flatness: λ/8 @ 633 nm for T>=1 mm

Surface Quality: Scratch/dig 60-40 after coating

Parallelism: better than 30 arc seconds

Perpendicularity: 10 arc minutes

Orentation accuracy: <30’’

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AgGaGe5Se12 is a promising new nonlinear optical crystal for frequency-shifting 1um solid state lasers into the mid-infrared (2-12mum) spectral range.
Because of its higher damage threshold, larger birefringence and bandgap, and greater variety of phase-matching schemes, AgGaGe5Se12 could become an alternative to AgGaS2 and AgGaSe2,more widely used in high-power and specifific applications.

Technical Properties
Dimension tolerance	(W +/-0.1 mm) x (H +/-0.1 mm) x (L + 1 mm/-0.5 mm)
Clear aperture	> 90% central area
Flatness	λ/8 @ 633 nm for T>=1 mm
Surface Quality	Scratch/dig 60-40 after coating
Parallelism	better than 30 arc seconds
Perpendicularity	10 arc minutes
Orentation accuracy	<30’’

Compare with AgGaS2, ZnGeP2, AgGaSe2, GaSe crystal, the properties shown as follows:

Crystal	Tansparency range	Nonlinear Coefficient
AgGaS2	0.53-12um	d36=23.6
ZnGeP2	0.75-12um	d36=75
AgGaSe2	0.9-16um	d36=35
AgGaGe5Se12	0.63-16um	d31=28
GaSe	0.65-19um	d22=58