CY0106 Barium Fluoride Crystal

Catalog No.	CY0106
Material	Barium Fluoride Crystal
CAS Number	7787-32-8
Shape	Rod Blank Windows or Customize Windows
Density	4.89g/cm3

Barium Fluoride is used in UV, visible & IR imaging system, scintillator & IR cut-off filter. It is suitable for a passive IR band (8-14 um) and a viewport for thermography.

INQUIRY

Description

Specification

Barium Fluoride Crystal Description

Barium Fluoride Crystal has excellent transparency in the ultraviolet (UV) range and is used as a material for UV optics and windows. It has a wide transmission range from 150 nm to 12 µm, making it suitable for applications such as spectroscopy, semiconductor lithography, and other UV-sensitive technologies.

It also possesses good mechanical and thermal properties, including a high melting point of around 1360 degrees Celsius, low thermal expansion, and high hardness. These properties make barium fluoride crystal suitable for use in harsh environments and under high temperatures, such as in nuclear applications and as scintillation detectors in particle physics experiments.

Additionally, barium fluoride crystal exhibits low refractive index and dispersion properties compared to other transparent materials, allowing for the production of lenses and prisms with minimal distortion or chromatic aberration.

Barium Fluoride Crystal Specification

Synonyms: Barium Difluoride, Barium (II) Fluoride, Molecular Weight (M.W.): 175.32

Item No.	Description	Shape	Lot Size	US$
C-BaF2	Barium Fluoride Crystal	Rod, Blank, Windows or Customized Windows, Lens, Prism	50, 200, 1000 pc	Ask for a quotation

Crystal Type	Cubic, CaF₂ Type structure
Transmission Range	0.15-15 µm
Refractive Index	n0=1.6654, ne=1.4898 @ 509 nm
Density	4.89 g/cm³
Melting Point	1280, 1335°C
Molecular Weight	175.3368
Thermal Conductivity	11.72 W/(m•K) @ 13°C
Specifics Heat	410 J/(kg•K) @ 27°C
Thermal Expansion	18.1x10^-6/K @ -110-120°C
Hardness (Knoop)	82 (indenter load: 500g)
Shear Modulus	25.4 Gpa
Bulk Modulus	268.89 Gpa
Rupture Modulus	26.2 Mpa
Dielectric Constant	7.33 @ f=2 MHz
Solubility Water	0.17 g/100g @ 23°C
Crystal Structure	Single crystal, synthetic
Cleavage Planes	(111)

Barium Fluoride Crystal Applications

1. X-ray and gamma-ray detection: BaF2 is widely used as a scintillator material in detectors for X-rays and gamma-rays. It can efficiently convert high-energy radiation into visible light, allowing for the detection and measurement of ionizing radiation.

2. Ultraviolet (UV) optics: Barium fluoride crystals are transparent to a wide range of wavelengths, including the UV region. They are used in UV optical components, such as windows, lenses, and prisms, for various applications such as spectroscopy, lithography, and UV laser systems.

3. Infrared (IR) optics: BaF2 has good transmission in the infrared region, particularly in the mid-infrared range. It is used for IR windows and lenses in applications such as thermal imaging, IR spectroscopy, and IR laser systems.

4. Scintillation detectors: BaF2 crystals are employed in particle and high-energy physics experiments as scintillation detectors. They can detect and measure the energy of charged particles and photons, making them useful for studying nuclear reactions and particle interactions.

5. Fluoride ion lasers: Barium fluoride crystals can be used as an active medium in fluoride ion lasers. When excited with a suitable light source, these lasers emit coherent light in the deep ultraviolet spectrum, which finds applications in scientific research, microlithography, and photolithography.

6. Optical coatings: BaF2 crystals can be used as optical coatings due to their low refractive index. They can be used to enhance the antireflection properties of optical components, reduce light scattering, and improve the transmittance of optical systems.

7. High-pressure research: BaF2 crystals are used in high-pressure experiments to generate extreme conditions. They can serve as diamond anvil cell windows, which enable the generation of pressures exceeding a million atmospheres.

Barium Fluoride Crystal Package

BaF₂ Crystals are securely packaged in moisture-resistant, anti-static, and shock-absorbing materials. Custom packaging options, such as cleanroom packaging, are also available for sensitive applications.

Barium Fluoride Crystal FAQs

Q1 Are CaF₂ Crystals suitable for high-power laser systems?

Yes, CaF₂ Crystals are ideal for high-power laser systems due to their high laser damage threshold and low absorption in the UV to IR spectrum.

Q2 What surface finishes are available for CaF₂ Crystals?

Surface finishes include:

Polished surfaces with ultra-low roughness (Ra < 5 Å) for high-precision optics
Ground surfaces for experimental use
Custom finishes tailored to specific application requirements

Q3 What shapes and sizes are available for CaF₂ Crystals?

CaF₂ Crystals are available in various shapes and sizes, including:

Windows: Round, square, or custom dimensions
Lenses: Plano-convex, bi-convex, and custom geometries
Prisms and Rods: Standard and custom configurations Custom dimensions can be manufactured based on specific needs.