Versatile Agse Nonlinear Crystals for Tunable MID-Infrared Lasers

• Customization: Available
• After-sales Service: Shelf Life One Year (Under Normal Use Conditions)
• Warranty: Shelf Life One Year (Under Normal Use Conditions)
• Model NO.: AgGaSe2 Crystal
• Customized: Customized
• Transmission Range: 0.73 – 18 μm
• Lattice Constant: a=5.992 &Angst, C=10.886 Å
• Nonlinear [email protected]μm: D36 = 33 Pm/V
• Melting Point: 851ºC
• Absorptivity: <0.02 Cm-1 @ 1.064 µm
• Thermal Conductivity: 1.0 W/M/°
• Shg Phase Matching: 1.8-11.2 μm
• Damage Threshold@1 50 Ns, 10.6μm: >10MW/Cm2
• Orientation Accuracy: <±0.1°
• Surface Quality: 20/10 Per Mil-O-13830A
• Surface Flatness: λ/[email protected] for T>=1mm
• Clear Aperture Tolerance: +0/-0.1mm
• Length Tolerance: ±0.1mm
• Parallelism: 30″
• Perpendicularity: 10′
• Trademark: CRYSTRONG
• Origin: China

Product Description

Silver Gallium Selenide (AGSe)

Nature and Characteristics:
AgGaSe2 silver selenide crystal, referred to as AGSe crystal for short, is one of the most effective crystal materials for frequency doubling of mid-infrared laser, and it also has excellent performance of three-wave nonlinear interaction (OPO). The useful light transmission range of AGSe crystal is 0.9-16μm, and it has wide phase-matching ability. With the mature laser pumping, the OPO of AGSe crystal shows wide infrared tunable performance. Pumping AgGaSe2 crystal with Ho: YLF 2.05μm to obtain 2.5-12μm OPO tuned light source; Non-critical phase matching OPO pumped by 1.4-1.55 μm tuning light source outputs 1.9-5.5 μm tuning light source; Frequency doubling of pulsed CO2 laser.

Main Applications:
1. AgGaSe₂ crystal has high frequency doubling efficiency for mid-infrared laser.
2. AGSe crystals can be used for optical parametric amplification, optical Parametric oscillation, and difference frequency generation, and their application wavelength can reach 16μm in the mid-infrared.
3. Basic characteristics of optical narrow-band filtering in the region near the isotropic point of silver selenide gallium crystal.

Basic Parameters:

Transmission Range	0.73 - 18 μm
Lattice Constants (a, c)	a = 5.992 Å, c = 10.886 Å
Density	5.70 g/cm³
Mohs Hardness	3.0 - 3.5
Nonlinear Coefficient (d36)	33 pm/V @ 10.6 μm
Melting Point	851 ºC
Absorptivity	<0.02 cm^-1 @ 1.064 µm
Thermal Conductivity	1.0 W/M/°C
SHG Phase Matching Range	1.8 - 11.2 μm
Damage Threshold	> 10 MW/cm² @ 150 ns, 10.6 μm
Thermal Expansivity	||C: -16.0 x 10-6 /ºC
	⊥C: +18.0 x 10-6 /ºC

Processing Parameters:

Orientation Accuracy	< ±0.1°
Surface Quality	20/10 per MIL-O-13830A
Surface Flatness	λ/8 @ 632.8 nm for T ≥ 1 mm
Clear Aperture Tolerance	+0 / -0.1 mm
Length Tolerance	±0.1 mm
Parallelism	30″
Perpendicularity	10′

About Us:
Crystrong Photonics Technology Co., Ltd. was established in 2012. The company integrates research and development (R&D), production, and sales, covering the entire laser industry chain. It serves the global laser application field and is committed to becoming a globally influential laser industry solution provider. Crystrong excels in various crystal growth technologies. Their crystal products span the infrared, visible light, and ultraviolet bands, and they have a track record of supporting large-scale national projects. As a long-term strategic partner of renowned domestic and foreign laser manufacturers, Crystrong offers dozens of conventional pockels cell models. These models encompass a variety of crystal materials, wavelengths, and frequencies. Additionally, special pockels cell models can be customized to meet customers' diverse use environments and application requirements. Crystrong also provides coating services and a range of lens optics components, which constitute the core advantage of their entire industry chain, ensuring superior product quality and competitive pricing.

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