ZGP Nonlinear Crystal
Description
ZnGeP2（Zinc germanium phosphide）crystal has many good properties and is an mid-IR nonlinear crystal. The nonlinear susceptibility of ZnGeP2 (ZGP) crystal is approximately 160 times large (d36~75 pm/V) as KDP,.ZGP shows good optical transparency over the 0.74–12 mm and relatively high laser damage threshold, and is therefore well suited for producing near infrared tunable laser. ZGP is a very hopeful material for mid-infrared devices such as SHG, SFG, OPO, and OPG/OPA.
ZGP Nonlinear Crystal
Specifications |
|
|---|---|
| Crystal Type: | ZnGeP2 (ZGP) |
| Phase Mathcing Type: | Not Applicable |
| Mounting: | Unmounted |
| Width: | 7 mm |
| Height: | 5 mm |
| Length: | 15 mm |
| Flatness: | <= Lambda/10 |
| Surface Quality (Scratch-Dig): | 20-10 |
| AR Coating: | One side |
| Damage Threshold At 10.6 Um : | 1 GW/cm2 (2 ns) |
| Transparency Range: | 0.74 – 12 um |
| Damage Threshold At 2.79 Um: | 30 GW/cm2 (150 ps) |
| NLO Coefficients Type Ⅱ: | doeo=deoo=d36 sinθsin2φ |
| NLO Coefficients Type Ⅰ: | deeo=d36 sin2θcos2φ |
| SHG Phase Matchable Range: | 3177 ∼ 10357nm (Type I) |
| Thermal Conductivity: | 180 W/m/K |
| Chemical Formula: | ZnGeP2 |
Features
- Nonlinear coefficient is large
- The region of transmission is from 0.74 um to 12um
- High relative damage threshold
- High thermal conductivity
- The region of transparency is wide
- Phase matching over a broad spectral region
Applications
Producing coherent radiation in sub-millimeter-range from 70.0 μm to 1000 μm - terahertz range
Combining frequencies of CO2- and CO-lasers radiation or other lasers that working in the transparency region of ZGP
SHG of CO-laser
Second, third, and fourth harmonic generation of CO2 laser
OPO(Optical parametric generation) with pumping at wavelengths of 2.05-2.94 μm and possibility to generate effectively 3-10 μm ranges
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Ships from:
China
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Sold by:
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On FindLight:
since 2019
Frequently Asked Questions
The experimental values of phase-matching angle are listed in the table provided in the product description.
ZnGeP2 crystal has a large nonlinear coefficient, a wide region of transmission from 0.74 um to 12um, high relative damage threshold, high thermal conductivity, and a wide region of transparency.
The damage threshold of ZnGeP2 crystal is 5 GW/cm2 (10 ns); 10 GW/cm2 (1.3 ns) at 1064nm and 1 GW/cm2 (10 ns); 7 GW/cm2 (250 ps) at 532nm.
The nonlinear susceptibility of ZnGeP2 crystal is approximately 160 times large (d36~75 pm/V) as KDP.
ZnGeP2 crystal is used for producing coherent radiation in the sub-millimeter range, combining frequencies of CO2- and CO-lasers radiation or other lasers that work in the transparency region of ZGP, SHG of CO-laser, second, third, and fourth harmonic generation of CO2 laser, OPO with pumping at wavelengths of 2.05-2.94 μm and possibility to generate effectively 3-10 μm ranges.