CALCIUM FLUORIDE(CaF2) WINDOWS

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Calcium Fluoride is good choice for optical windows in the 0.15 μm - 9 μm range,which is relatively soft and somewhat hygroscopic so polishing, coating and handling are more critical than UV Fused Silica windows. In addition, The quality of a UV window can be extremely critical, it should be of high purity and polish in order not to affect the optical system.

Calcium Fluoride Windows are also applicable for a wide range of spectrum. It is particularly useful for wavelength at 2980nm laser application.

Due to its low refractive index, Calcium Fluoride can be used without anti-reflection coating.

Standard Specifications:
Optical Material: Diameter Tolerance: Thickness Tolerance: Clear Aperture: Parallelism: Surface Quality: Wavefront Distortion: Bevel: Coating:	Calcium Fluoride Single Crystal +0.0, -0.1mm ± 0.2mm >85% <3 are minutes see the able see the table <0.25mm X 45° available upon request

Standard CaF2 Windows Dia(mm) Thickness(mm) Wavefront Distortion Surface Quality Product Number Parallelism 10 arc sec 8.0 0.5 Lambda/4 40-20 UQT-WNCH0001 12.7 2.0 Lambda/4 40-20 UQT-WNCH0002 15.0 2.0 Lambda/2 40-20 UQT-WNCH0003 25.4 2.0 Lambda/2 40-20 UQT-WNCH0004 38.10 2.0 Lambda/2 60-40 UQT-WNCH0005 Parallelism 1 arc min 10.0 1.0 Lambda per 25mm 80-50 UQT-WNCL0101 12.7 3.0 Lambda per 25mm 80-50 UQT-WNCL0102 15.0 2.0 Lambda per 25mm 80-50 UQT-WNCL0103 25.4 3.0 Lambda per 25mm 80-50 UQT-WNCL0104 38.10 3.0 Lambda per 25mm 80-50 UQT-WNCL0105 50.0 8.0 Lambda per 25mm 80-50 UQT-WNCL0106
Please Contact ultiQuest for other dimensions in prototype and production quantities.
NOTES!
	Since they are nonaxial, CaF2 crystals do not require consideration of axial direction
	CaF2 crystals are soft and susceptible to cracking, as well as cleavage if subjected to rapid changes in temperature. They should be handled accordingly.
	Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.