Del Mar Photonics - Newsletter
Del Mar Photonics offers variety of optical components from VUV grade and IR grade Lithium Fluoride.
Lithium Fluoride (LiF) - request a quote
Lithium Fluoride is used for windows, lenses and prisms in the vacuum UV, UV, visible and infrared where transmission in the range 0.15µm to 6
µm is desired. The refractive index varies from about 1.4 to 1.3 in this range. These crystals are optically isotropic, middle hard, unsolubale in water. Modest precautions should be taken against moisture and high energy radiation damage. LiF is attacked by atmospheric moisture at 400° C, and softens at 600° C. LiF is sensitive to thermal shock. This is the best VUV transmitter available.
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Physical Properties
| Crystal type | cubic |
| Lattice constant | a = 4.026Å |
| Density | 2.64g/cm3 |
| Melting point | 870 °C |
| Refractive index | n = 1.387 @ 1.0 µm |
| Transmission band | 0.15 - 6.0 µm |
UV grade LiF optics is used in research on Ultra-High-Frequency Electronics contact us for a custom quote for LiF optics
Application note
Customer inquiry: I would like to order material that is transparent to vacuum UV light,
in particular to 104.8nm photons that are generated by an Ar plasma.
My research has led me to Lithium Fluoride as a suitable material. Do
you stock LiF or any windows that transmit 104nm photons?
Customer research area:
Ultra-High-Frequency Electronics
* III-V Transistors
* III-V Integrated Circuits
* mm-wave CMOS & BiCMOS ICs
* wideband fiber optics
* mm-wave RF/wireless
Related publicatiosn
Other recently shipped orders for UV grade LiF optics contact us for a custom quote for LiF optics
LiF windows VUV grade sample specifications
Type: square plane-parallel window
Material: VUV grade LiF
Orientation: 100
Dimensions: 20 x 20 mm (+0.0/-0.2 mm)
Thickness: 3 mm (+0.0/-0.2 mm)
Surface quality: 60/40 scr/dig
Flatness: 5 fringes at 532 nm
Parallelism: ≤ 5 arc minutes
Clear aperture: ≥ 85% of dimensions
Coating: none
Part number: LiF_SPW_20_20_3
request a
custom quote
Unpolished (as cut) LiF window
Part number: LiF_SPW_20_20_3_unpolished
Transmission:
T>66% at 135 nm; T>77% at 150 nm;
T>85% at 165 nm
Del Mar Photonics - Visit our online store or contact us for a custom quote for LiF optics
LiF optical windows (custom order)
| Material: LiF optical VUV grade monocrystalline Working wavelength: 532 nm Type: circular wedge window Orientation: 100 Diameter: 2 mm (+0.0/-0.2 mm) Thickness: 5 mm (+/-0.25 mm) Finish: 2 sides polished 40/20 scr/dig Flatness: 5 fringes per inch at 532 nm Wedge angle on one side 3 deg (+/- 0.5 deg) Chamfers: technological for protection from edge cracks Coating: none Part number: LiF_WW_D2_5 certificate of conformity |
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LiF optics
UV Grade Single Crystal LiF window -
VUV_LiF_20_20_3
UV Grade Single Crystal LiF2 window
Diameter: 12.7x1.0mm
LiF_WW_D15_5 -
LiF wedge windows
MgF2 optics
VUV grade MgF2
viewport
MgF2
Pellin Broca prisms
| Lithium Fluoride - LiF | |
| Model | Product Name+ | Buy Now |
| W-LF-15-5 | LiF window ø 15 mm x 5 mm, VUV grade |
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| W-LF-8.7-3 | LiF window ø 8.7 mm x 3 mm |
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| W-LF-10-3 | LiF window ø 10 mm x 3 mm |
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| W-LF-10-3.5 | LiF window ø 10 mm x 3.5 mm |
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| W-LF-16.4-4 | LiF window ø 16.4 mm x 4 mm |
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| W-LF-16.4-6 | LiF window ø 16.4 mm x 6 mm |
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| W-LF-25.4-3 | LiF window ø 25.4 mm x 3 mm |
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Visit our online store or contact us for a custom quote for LiF optics