Table 1.
Properties of UV light
| Name | Abbreviation | Wavelength | Frequency | Photon energy | |||||
|---|---|---|---|---|---|---|---|---|---|
| nm | THz | eV | aJ | ||||||
| Ultraviolet A | UVA | 400 | 315 | 749 | 952 | 3.10 | 3.94 | 0.497 | 0.632 |
| Ultraviolet B | UVB | 315 | 280 | 952 | 1071 | 3.94 | 4.43 | 0.632 | 0.710 |
| Ultraviolet C | UVC | 280 | 100 | 1071 | 2998 | 4.43 | 12.40 | 0.710 | 1.988 |
| Near ultraviolet | NUV | 400 | 300 | 749 | 999 | 3.10 | 4.13 | 0.497 | 0.662 |
| Middle ultraviolet | MUV | 300 | 200 | 999 | 1499 | 4.13 | 6.20 | 0.662 | 0.994 |
| Far ultraviolet | FUV | 200 | 122 | 1499 | 2457 | 6.20 | 10.16 | 0.994 | 1.629 |
| Hydrogen Lyman-alpha | H Lyman-α | 122 | 121 | 2457 | 2478 | 10.16 | 10.25 | 1.629 | 1.643 |
| Vacuum ultraviolet | VUV | 200 | 10 | 1499 | 29979 | 6.20 | 12.40 | 0.994 | 1.988 |
| Extreme ultraviolet | EUV | 121 | 10 | 2478 | 29979 | 10.25 | 12.40 | 1.643 | 1.988 |