Refractive Index
| Wavelength (μm) | no | ne | Wavelength (μm) | no | ne | Wavelength (μm) | no |
| 0.1850 | 1.65751 | 1.68988 | 0.9914 | 1.53514 | 1.54392 | 2.3000 | 1.51561 |
| 0.1980 | 1.65087 | 1.66394 | 1.1592 | 1.53283 | 1.54152 | 2.6000 | 1.50986 |
| 0.2310 | 1.61395 | 1.62555 | 1.3070 | 1.53090 | 1.53951 | 3.0000 | 1.49953 |
| 0.3400 | 1.56747 | 1.57737 | 1.3958 | 1.52977 | 1.53832 | 3.5000 | 1.48451 |
| 0.3940 | 1.55846 | 1.56805 | 1.4792 | 1.52865 | 1.53716 | 4.0000 | 1.46617 |
| 0.4340 | 1.55396 | 1.56339 | 1.5414 | 1.52781 | 1.53630 | 4.2000 | 1.45690 |
| 0.5080 | 1.54822 | 1.55746 | 1.6815 | 1.52583 | 1.53422 | 5.0000 | 1.41700 |
| 0.5893 | 1.54424 | 1.55335 | 1.7614 | 1.52468 | 1.52468 | 6.4500 | 1.27400 |
| 0.7680 | 1.53903 | 1.54794 | 1.9457 | 1.52184 | 1.53004 | 7.0000 | 1.16700 |
| 0.8325 | 1.53773 | 1.54661 | 2.0531 | 1.52005 | 1.52823 |
Specifications:
| Material | Quartz Crystal | Wavelength | 150~4000nm |
| Size | 0.1mm-100mm | Surface Quality | 10/5 S/D |
| Optical Axis Orientation | <6 arc min | Parallelism | <1 arc sec |
| Flatness | λ/10 @ 633nm | Clear Aperture | >95% of full aperture |
| Coating | Upon Customer’s Specification | ||
Basic Properties:
| Crystal Class | Hexagonal | Molecular Weight | 60.06 |
| Density | 2.635-2.660 g/cm3@ 289 K | Dielectric Constant | for 3x107 Hz @295 K 35 microns |
| Parallel | 4.27 | Perpendicular | 4.34 |
| Reflection Loss | 8.2 % for two surfaces @ 2 mm | Melting Temperature | 1740 K |
| Specific Heat | 0.17 cal/(g K)@ 273 K | Knoop Hardness | 741 kg/mm2 |
| Transmission Range | 0.4 - 4.5μm | Debye Temperature | 470 K |
| Thermal Conductivity | Parallel/Perpendicular | 720/370 W/(m K) @20K | |
| Parallel/Perpendicular | 20/10W/(m K) @194K | ||
| Parallel/Perpendicular | 10.7/6.2W/(m K) @323K | ||
| Parallel | 97.2 GPa | Perpendicular | 76.5 GPa |
| Bulk Modulus | 36.4 GPa | Shear Modulus | 31.14 GPa |
| Solubility in Water | None | Bandgap | 8.4 |
Optical grade quartz crystals has a broad transparent range of 0.2μm to 3.5μm, with high internal crystalline perfection and optical homogeneity. Quartz crystals has excellent mechanical and physical properties, easy to be fabricated, it also has low thermal expansion, high chemical resistance and non deliquesce. And moreover, it exhibits a refractive index difference around 0.009, which makes it widely used in the wave plates and polarization applications.
Hangzhou Shalom EO offer the optical grade quartz crystals, the quartz crystals ingots, blanks, polished wafers and substrates, the maximum size of 130x130mm square and diameter 150mm are available.
