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Mercury Gallium Sulfide (HGS) Crystal...
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Mercury Gallium Sulfide Crystal | HGS Crystal | HgGa2S
HM2830
New product
Mercury Gallium Sulfide (HGS) Crystal is a high-performance nonlinear optical crystal with a high laser damage threshold and conversion efficiency. It is ideal for frequency doubling and OPO/OPA applications in the 1.0 to 10 µm wavelength range.
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Data sheet
| Density | 4.95 g/cm3 |
| Materials | HGS Crystal |
| Melting Piont | 880 ℃ |
| Molecular Formula | HgGa2S |
More info
Mercury Gallium Sulfide (HGS) Crystal offers a high laser damage threshold and conversion efficiency, making it ideal for frequency doubling and OPO/OPA applications in the 1.0 to 10 µm range. For instance, a 4 mm HGS element achieves approximately 10% frequency doubling efficiency with CO2 laser radiation. Despite the challenges in growing large crystals, HGS competes with other nonlinear crystals like AgGaS2, AgGaSe2, ZnGeP2, and GaSe due to its high conversion efficiency and wide tuning range. Heeger Materials (HM) provides high-quality HGS crystals for advanced nonlinear frequency conversion.
HGS Crystal Physical Structural Properties
Lattice Symmetry and Point Group | Tetragonal, S4 |
Space Group | S24 |
Melting Point (°C) | 880 |
Density (g/cm³) | 4.95 |
HGS Crystal Optical and Nonlinear Optical Properties
Optical Transmission Range (μm) | 0.5 to 12.5 | ||
Energy Gap (eV) | 2.84 | ||
Refractive Index (Measured Values) | λ (μm) | no | ne |
0.5495 | 2.6592 | 2.5979 | |
0.6500 | 2.5796 | 2.5264 | |
1.0760 | 2.4774 | 2.4324 | |
3.5400 | 2.4386 | 2.3979 | |
11.000 | 2.3690 | 2.3290 | |
Damage Threshold | τ=10 ns, λ=1.06 μm (single pulse), 60 MW/cm² | ||
τ=18 ns, λ=1.064 μm, ν=10 Hz, 30 MW/cm² | |||
Nonlinear Optical Coefficients | d₃₆(1.064μm)=1.8d₃₆(AgGaS₂)±15% = (35.2±5.3) pm/V | ||
d₃₁(1.064μm)=0.6d₃₆(AgGaS₂)±15% = (11.7±1.8) pm/V | |||
d₃₆ / d₃₁ = 3 | |||
d₀₀ₑ = d₃₆sinθsin2φ + d₃₁sinθsin2φ, φopt=36° | |||
dₑ₀ₑ = d₀ₑₑ = d₃₆sin2θcos2φ - d₃₁sin2θcos2φ, φopt=81° | |||
Dispersion Equations (Sellmeier Equations, λ in μm) | no² = 6.2081522 - 63.706298 / (225.0 - λ²) - 0.23698804 / (0.09568646 - λ²) | ||
ne² = 6.0090267 - 63.280659 / (225.0 - λ²) - 0.21489656 / (0.09214633 - λ²) | |||
Experimental Results with HgGa₂S₄ | Quantum conversion efficiency (%) for CO₂ lasers (τ=30 ns, power density 60 MW/cm², L=4 mm) | ||
HGS Crystal Specifications
Clear Aperture Tolerance | +0.1/-0 mm |
Thickness Tolerance | +0.1/-0 mm |
Angle Tolerance (φ and θ) | +/-30 arcmin |
Perpendicular Tolerance | 15 arcmin |
Aperture Chamfer | 0.1~0.3 mm |
Parallelism | <120 arcsec |
Flatness | <λ/6 @ 633 nm |
Axial | ±0.5° @ all axes |
HGS Crystal Stock Dimensions
Crystal Type | Size | θ | φ |
HGS | 5×5×1 mm | 43.5° | 45° |
HGS | 6×6×2 mm | 55.8° | 0° |
HGS | 8×8×1 mm | 43.5° | 45° |
HGS Crystal Applications
- Second-Harmonic Generation for CO and CO2 Lasers: Used as a frequency doubler for CO and CO2 lasers, enabling efficient second-harmonic generation.
- Frequency Generation for Mid-Infrared Range: Applied in various frequency generation processes to reach the mid-infrared region.
- Optical Parametric Oscillators (OPO): Utilized in optical parametric oscillators for generating tunable wavelengths in the mid-infrared range.
- Frequency Mixing in the Mid-Infrared Range: Used for frequency mixing to generate new wavelengths in the mid-infrared region.
HGS Crystal Packing And Shipping
Mercury Gallium Sulfide (HGS) Crystal will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures that the product arrives in perfect condition, maintaining its high-quality standards throughout the delivery process.
Where to Buy Mercury Gallium Sulfide (HGS) Crystal in Bulk?
Heeger Materials Inc., a professional supplier and manufacturer of high-quality Nonlinear Crystals products including Mercury Gallium Sulfide (HGS) Crystal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.
Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.
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