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High purity synthetic quartz (OH<1ppm), with customizable light uniformity and stress birefringence.
Large aperture lenses, window mirrors, etc. for high-power lasers
With ultra-low hydroxyl content (OH<1ppm) and excellent optical properties, it can achieve high optical uniformity, low stress birefringence, extremely high transmittance from deep ultraviolet (193nm) to near-infrared (2800nm) bands, low weak absorption coefficient, and strong resistance to gamma irradiation.
Metal impurity content(Unit: ppm)
| Metal impurity content | Li | Na | K | Mg | Ca | Cu | Al | Cr | Fe | Ti | OH |
| YS-1320 | <0.001 | <0.003 | <0.001 | <0.001 | <0.001 | <0.001 | <0.003 | <0.001 | <0.001 | <0.005 | <1 |
Product Features
| Model | Optical uniformity (ppm) | Stress birefringence (nm/cm) | Bubble | Stripe level | fluorescence |
| YS-1320 | ≤5 | ≤5 | 0 | 5 | Slight Blue |
Heat absorption coefficient
| Model | Heat absorption coefficient @ 1064nm (ppm/cm) |
| YS-1320 | <1 |
optical performance
Refractive index performance
| Spectral line wavelength (nm) | Refractive index | Spectral line wavelength (nm) | Refractive index |
194.2 | 1.559066 | 632.8 | 1.457106 |
| 365 | 1.474671 | 643.8 | 1.456794 |
| 404.6 | 1.469755 | 656.3 | 1.456458 |
| 435.8 | 1.466831 | 706.5 | 1.455232 |
| 479.9 | 1.463639 | 852.1 | 1.452558 |
| 486.1 | 1.463261 | 1013.98 | 1.450338 |
| 546.1 | 1.460218 | 1529.6 | 1.444361 |
| 587.6 | 1.458602 | 1970.1 | 1.438667 |
| 589.3 | 1.458542 | 2325.4 | 1.432974 |
Sellmeier dispersion constant
| Model | B1 | C1 | B2 | C2 | B3 | C3 | B4 | C4 |
| YS-1320 | 0.112372 | 0.006311 | 0.811965 | 0.006294 | 0.179903 | 0.016600 | 0.697481 | 77.351514 |
Mechanical performance
| parameter | Company | Test result |
density | g/cm3 | 2.20 |
| Mohs hardness | - | 7 |
| Young's modulus | GPa | 74.20 |
| shear modulus | GPa | 31.22 |
| Poisson's ratio | - | 0.17 |
| compressive strength | GPa | 1.13 |
| tensile strength | MPa | 49 |
| bending strength | MPa | 94.3 |
Electrical performance
Parameter | Company | Test result |
| Dielectric constant (20 ° C, 500MHz) | - | 3.9 |
| Electrical resistivity (20 ° C) | Ω·cm | 0.1*1018 |
| Dielectric loss angle (tan δ, 500MHz) | - | <0.001 |
| Resistance | Ω | 8.0*1015 |
Thermal Properties
Parameter | Company | Test result |
Strain point (η=1014.5dPa·s) | °C | 1070 |
| Annealing point (η=1013dPa·s) | °C | 1200 |
| Softening point(η=107.6dPa·s) | °C | 1680 |
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