Lithium Fluoride (LiF)
Lithium Fluoride (LiF) optical material for UV and infrared windows, lenses, and spectroscopy optics, with selection guidance for custom components.
Key Properties
About Lithium Fluoride (LiF)
Overview
Lithium Fluoride (LiF) is used for UV and infrared optics where wavelength range, environment, and handling requirements support this material. It is commonly reviewed for custom windows, lenses, and spectroscopy components.
Key Material Properties
| Parameter | Guidance |
|---|---|
| Transmission Range | 0.11-7 μm |
| Refractive Index | Available on request |
| Density | 2.639 g/cm3 |
| Knoop Hardness | 415 kg/mm2 |
| Young's Modulus | 64.79 GPa |
| Thermal Expansion | 37.0*10^-6/K @283 K |
Typical Applications
- UV optics
- IR windows
- Spectroscopy components
- Custom crystal optics
- Broadband optical systems
Selection Guidance
LiF should be reviewed for humidity exposure, handling conditions, coating compatibility, and the final optic geometry. Use the values on this page as selection guidance, then confirm final tolerances and inspection requirements against the production drawing.
Request Material Review
Use the contact form or email [email protected] with wavelength range, environment, size, quantity, coating target, and application notes for a practical material review.