ZGP (ZnGeP2) Crystals
Large Nonlinear Susceptibility: ZnGeP2 crystals have a large nonlinear susceptibility (d36 ~ 75 pm/V), which is approximately 160 times that of KDP (potassium dihydrogen phosphate). This high nonlinear susceptibility makes ZGP crystals highly efficient for nonlinear optical processes.
Wide Transparency Range: ZGP crystals are optically transparent over the 0.74–12 μm wavelength region. This wide transparency range allows for versatile use in various optical systems and applications.
High Laser Damage Threshold: ZnGeP2 crystals have a relatively high laser damage threshold, making them suitable for high-power laser systems and applications that require intense laser beams.
Tunable Laser Output: ZGP crystals are recommendable for producing tunable laser output in the near-infrared spectrum. This capability makes them valuable for applications that require precise control over laser wavelength.
Applications: Laser Technology, Optical Parametric Oscillator (OPO), Optical Parameter Generation/Amplification (OPG/OPA), Frequency Conversion, Scientific research, Medical & Biological Imaging, etc.
Zinc germanium phosphide (ZnGeP2), also known as ZGP, is a promising mid-IR nonlinear crystal that exhibits outstanding nonlinear optical (NLO) properties. Kingwin Optics offers high-quality ZGP crystals with exceptional performance characteristics, making them suitable for a wide range of optical applications.
Specifications:
| Material | ZnGeP2 |
| Thickness Tolerance | +/-0.05mm |
| Orientation Tolerance | <0.5° |
| Flatness | less than λ/8 @ 633nm |
| Transmitting Wavefront Distortion | less than λ/4 @ 633nm |
| Chamfer | ≤0.2mmx45° |
| Chip | ≤0.1mm |
| Surface Quality | better than 10/5 S/D (MIL-PRF-13830B) |
| Parallelism | ≤30 arc seconds |
| Perpendicularity | ≤15 arc minutes |
| Aperture | >90% |
Features:
- Large Nonlinear Susceptibility: ZnGeP2 crystals have a large nonlinear susceptibility (d36 ~ 75 pm/V), which is approximately 160 times that of KDP (potassium dihydrogen phosphate). This high nonlinear susceptibility makes ZGP crystals highly efficient for nonlinear optical processes.
- Wide Transparency Range: ZGP crystals are optically transparent over the 0.74–12 μm wavelength region. This wide transparency range allows for versatile use in various optical systems and applications.
- High Laser Damage Threshold: ZnGeP2 crystals have a relatively high laser damage threshold, making them suitable for high-power laser systems and applications that require intense laser beams.
- Tunable Laser Output: ZGP crystals are recommendable for producing tunable laser output in the near-infrared spectrum. This capability makes them valuable for applications that require precise control over laser wavelength.
Applications：
- Laser Technology: ZGP crystals have important applications in laser technology due to their high nonlinearity coefficient and wide transparent wavelength band. They can be used to generate tunable laser output, especially in the near-infrared spectral region.
- Optical Parametric Oscillator (OPO): ZGP crystals are ideal for OPOs because they are able to efficiently convert the input laser into an output laser at different wavelengths, enabling wavelength tuning.
- Optical Parameter Generation/Amplification (OPG/OPA): ZGP crystals also play a key role in the generation and amplification of optical parameters, as they are able to enhance or amplify optical signals of specific wavelengths.
- Frequency Conversion: ZGP crystals can be used in frequency conversion applications such as Second Harmonic Generation (SHG) and Sum Frequency Generation (SFG), which are important in optical communication and spectroscopic analysis.
- Scientific research: In scientific research such as physics, chemistry, and biology, ZGP crystals are used in various experiments to study the nonlinear optical properties of matter, the interaction between laser and matter, etc.
- Medical & Biological Imaging: The nonlinear optical properties of ZnGeP2 crystals can also be used in medical and biological imaging, for example, for the development of novel optical imaging techniques.
Kingwin Optics offers high-quality ZnGeP2/ZGP crystals with advanced coatings and mounting options for easy integration into optical systems. Our crystals are carefully manufactured and tested to ensure optimal performance and reliability.
In summary, ZnGeP2/ZGP crystals from Kingwin Optics are promising mid-IR nonlinear crystals with exceptional NLO properties. Their large nonlinear susceptibility, wide transparency range, high laser damage threshold, and tunable laser output capabilities make them valuable for a wide range of optical applications. Kingwin Optics is committed to providing high-quality ZGP crystals to meet the needs of researchers, engineers, and manufacturers seeking efficient and reliable nonlinear optical components.
