VUV-UV Grade Opical Windows


Vacuum Ultraviolet (VUV-UV) Optical Windows are available from select VUV Grade Magnesium Fluoride (MgF2) & Calcium Fluoride (CaF2).
 

Magnesium Fluoride:  VUV Grade Magnesium Fluoride (MgF2) exhibits high transmission properties from ~ 110nm Vacuum UV (VUV) to ~ 6.0um in the Infrared.  MgF2 is a relatively hard crystalline material resistant to mechanical and thermal shock.  MgF2 is a birefringent crystal typically oriented along the optical axis to avoid birefringent effects in optical windows & lenses. 

Calcium Fluoride:  Calcium Fluoride (CaF2) exhibits good transmission properties from ~ 140nm Vacuum UV (VUV) to ~ 8.0um in the Infrared.  CaF2 is a relatively soft crystalline material and care should be taken as CaF2 is sensitive to mechanical and thermal shock.  CaF2 is a cubic single crystal optical material.


VUV-UV Optical Windows are flat polished round VUV-UV optical windows typically used in general VUV-UV applications such as Deuterium (D2) Lamp and VUV-UV Laser Sources to isolate environments while allowing short wavelength VUV-UV light to transmit as short as 120nm.   VUV-UV Optical Windows are generally used for view ports or sealing and or protecting other components within an VUV-UV optical assembly, VUV-UV instrument or VUV-UV laser.

More information can be found on our Material Properties Page.   For more information about Optical Windows, refer to our Optics Tutorial page

 

 

OPTICAL WINDOW SPECIFICATIONS
 

Material : VUV Grade MgF2, CaF2

Diameter (Dia = Ø) Tolerance: ± 0.25mm

Thickness Tolerance: ± 0.25mm  

Transmitted Wavefront:  ~L/4 - ~L/2 @ 633 nm nominal

Surface Finish:  20-10 to 40-20 both surfaces
Clear aperture: central 80%

Parallelism:  < = 5 arc minutes 

Chamfer: ~ 0.30mm @ 45 deg. typical


All dimensions in mm  

 

  

        

 

DIAMETER Ø

THICKNESS (T)

DESCRIPTION

MATERIAL

PRODUCT #

PRICE

ORDER

12.5

2.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF1220OW

$290.00

AQMF1220OW

12.5 2.0 VUV-UV CaF2 Optical Window VUV CaF2

AQCF1220OW

$210.00

AQCF1220OW

12.7

3.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF1230OW

$290.00

AQMF1230OW

12.7

3.0

VUV-UV CaF2 Optical Window

VUV CaF2

AQCF1230OW

$285.00

AQCF1230OW

25.0

3.0

VUV-UV CaF2 Optical Window

VUV CaF2

AQCF2530OW

$295.00

AQCF2530OW

25.0

3.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF2530OW

$395.00

AQMF2530OW

25.4

5.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF2550OW

$395.00

AQMF2550OW

25.4

5.0

VUV-UV CaF2 Optical Window

VUV CaF2

AQCF2550OW

$380.00

AQCF2550OW

25.4

2.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF2520OW

$390.00

AQMF2520OW

25.4

2.0

VUV-UV CaF2 Optical Window

VUV CaF2

AQMF2520OW

$390.00

AQMF2520OW

38.1

4.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF3840OW

$475.00

AQMF3840OW

40.0

3.0

VUV-UV CaF2 Optical Window

VUV CaF2

AQCF4030OW

$475.00

AQCF4030OW

50.0

3.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF5030OW

$825.00

AQMF5030OW

50.0

3.0

VUV-UV CaF2 Optical Window

VUV CaF2

AQCF5030OW

$495.00

AQCF5030OW

50.8

5.0

VUV-UV MgF2 Optical Window

VUV MgF2

AQMF5050OW

$825.00

AQMF5050OW

 

                

 

 

                                                          CaF2 Refractive Index                                      

Wavelength, nm 157 193 248 308 350
Refractive Index (n) 1.559 1.501 1.468 1.453 1.445

 

 

 

 

 

                                                                 MgF2 Refractive Index 

Wavelength, nm 157 193 248 308 350
Refractive Index (n) 1.464 1.428 1.4097 1.398 1.393

   

 

 

 

                                 

 

            **Also see our UV Fused Silica & BK7 Glass Circular Optical Windows
 

 

                  

                           

 

           

                                                                        Back to Products

 

 

                                          

                    (Materials transmittance can vary slightly and this data should be used as a reference only.  Based on 2-3mm Thick.) 

 

 

 

 

 

 



                   

                                                

                                                   
              eSource Optics / PMB 126 / 1225 Providence Rd. / Whitinsville, MA 01516

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