Ultraviolet transmittance and transmission spectrum of optical quartz glass, JGS1, jgs2 and jgs3
Grade and name of optical quartz glass
| Brand | name | Application spectrum band range (μ m) |
| JGS1 | Far ultraviolet optical quartz glass | 0.185~2.5 |
| JGS2 | Ultraviolet optical quartz glass | 0.220~2.5 |
| JGS3 | Infrared optical quartz glass | 0.260~3.5 |
Classification of JGS1 far ultraviolet optical quartz glass
| Category | Transmittance of 10 mm thick blank | |||||
| 0.185μｍ | 0.200μｍ | 0.220μｍ | 0.240μｍ | 0.300μｍ | 0.185~1.2μｍ | |
| 1 | ＞85 | ＞85 | ＞85 | ＞87 | ＞90 | There is no absorption peak |
| 2 | ＞70 | ＞80 | ＞80 | ＞80 | ＞85 | There is no absorption peak |
| 3 | ＞70 | ＞70 | ＞70 | ＞80 | Absorption peak is allowed | |
Classification of jgs2 ultraviolet optical quartz glass
| Category | Transmittance of 10 mm thick blank | ||
| 0.220μｍ | 0.240μｍ | 0.300μｍ | |
| 1 | ＞80 | ＞75 | ＞80 |
| 2 | ＞75 | ＞70 | ＞75 |
| 3 | ＞65 | ＞70 | |
Classification of jgs3 infrared optical quartz glass
| Category | Transmittance of 10 mm thick blank | ||||
| 2.0μｍ | 2.5μｍ | 2.7μｍ | 2.8μｍ | 0.2－2.8μｍ | |
| 1 | ＞90 | ＞90 | ＞90 | ＞85 | There is no absorption peak |
| 2 | ＞85 | ＞85 | ＞85 | ＞80 | There is no absorption peak |
| 3 | ＞80 | ＞80 | ＞75 | ＞75 | Absorption peak is allowed |
Based on the above information, the UV transmission spectra of optical quartz glass are as follows:
Reference data of physical and chemical properties of optical quartz glass
Hardness (Mohs): 5.5 linear expansion coefficient (- 60 ~ 120 ℃): 2.1 × 10-7Melting point (℃): 1700
Refractive index: 1.4585 ± 4 × 10-4Middle dispersion: 0.00674 ± 4 × 10-5Dispersion coefficient: 68.0;
