BaF2 Infrared Window/Scintillation Barium Fluoride Crystal

Product Overview

Description

 

Optical Properties
Transmission Range	150 nm to 14 μm
Transmittance	>94% at 350 nm to 10.8 μm
Refractive Index	1.4624 at 2.58 μm 1.3936 at 10.35 μm
Reflection Loss	6.8% at 2.58 μm (both surfaces) 5.3% at 10.35 μm (both surfaces)
Radiation Length	20.6 mm
Residual Radiation Peak	47 nm
Emission Peak	310 nm slow; 220 nm fast
Decay Constant	620 ns slow; 0.6 ns fast
Light Output	20% slow; 4% fast
Absorption Coefficient	3.2 x 10-4 cm-1 at 6 μm
dn/dT	-15.2 x 10-6 /°C
Physical Properties
Density	4.89 g/cm3
Melting Point	1280°C
Thermal Conductivity	11.72 Wm-1K-1 at 286K
Thermal Expansion	18.1 x 10-6 /°C at 273K
Knoop Hardness	82 with 500g indenter (kg/mm2)
Specific Heat Capacity	410J/(kg.k)
Dielectric Constant	7.33 at 1MHz
Youngs Modulus (E)	53.07 GPa
Shear Modulus (G)	25.4 GPa
Bulk Modulus (K)	56.4 GPa
Elastic Coefficient	Elastic CoefficientElastic Coefficient
Apparent Elastic Limit	26.9 MPa (3900 psi)
Poisson Ratio	0.343
Chemical Properties
Solubility	0.0017 g/ 100g water at 23°C
Molecular Weight	175.36
Structure	Cubic Crystal
Cleavage Plane	(111)

 

 

About Our Company:

 

Beijing Glass Research Institute founded in 1960s, we are the state owned institute pioneered in optical materials.

Over 53 years, we have been growing accompanied by contributing to domestic and international projects in diverse areas of science and industry. Continued focus on innovation won us more than 140 awards.

 

Since 1966, our institute makes out the first optical fiber in China. Now we have the certification and permission on various national military or weapon projects.

 

From the 1^st January 2013, our higher authoritiesreorganized the advantage resources and established the Scitlion Technology, all the staffs and businesses in Beijing Glass Research Institute are transferred into this new company. New company acts as the brother company of the Institute.

 

Now our company has 5 business units, they are Crystal, which include optic crystal and scintillation crystal growth and processing;

the special fiber, which includes various silica fiber applied in UV , visible ,infrared range and polarization maintaining optical fiber,

the optical processing, like the Windows, Mirrors, Lenses, Prisms, Filters;

the special glass, mainly the sealing glass and lubricant glass;

the temperature components, such as Beckman thermometer, industrial thermistors.