Calcium Fluoride (CaF2) Optical Wafers All Grades

university wafer substrates

Recent CaF2 Wafer Sales

Below are just a few of our most recent CaF2 Sales purchased by scientists.

100mm CaF2 wafers 0.5 mm thick, DSP, intrinsic.
Qty 1

100mm CaF2 wafers (100) or (111) 2mm thick DSP

Qty: 5 pcs

Calcium Floride (CaF2) Grades

Grade Transmission Quality
Infra-Red Grade  0.40μm to 10.0μm  Medium purity
UV Grade  0.19μm to 10.0μm  High purity
VUV Grade 0.13μm to 10.0μm  Very high purity
Eximer Grade  0.13μm to 10.0μm Very high purity
Raman Grade  0.13μm to 10.0μm  Fluorescence free

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Infra-Red (IR) Grade

In the past CaF2 was mined and was inexpensive compared to other grades. But now regent grade CaF2 is used to save money.

Ultra-Violet (UV) Grade

Synthetically produced CaF2. Tranmission through Ultra Violet-Visible spectrum as well as the IR.

Vacuum Ultra-Violet (VUV)

The vacuum UV part of the spectrum extending to the theoretical limit for CaF2.

Eximer Grade

Eximer grade CaF2 is derived from pure crystal ingots of the highest purity to guarantee the best absorption of high-powered lasers.

Raman Grade 

Only certain CaF2 ingots that meet the highest quality can be deemed Raman grade.

Calcium Fluoride (CaF2) Lecture

Lecture on the outstanding high-k dielectric for 2D electronics.

CaF2, an outstanding High-K Dielectric for 2D


What Are Calcium Fluoride (CaF2) Wafers?

What are Calcium Fluoride CaF2 wafers? These are crystals of calcium fluoride that are used to produce optical components. These devices include thermal imaging systems, spectroscopy, telescopes, and excimer lasers. These materials are transparent over a wide spectrum of frequencies and their low refractive index makes them ideal for a number of optical applications. In addition, the material is highly insoluble in water, making it convenient to process.

Calcium Fluoride is a naturally occurring mineral that is grown in the vacuum Stockbarger technique. Usually, the crystal for infrared use is mined from a deposit, which decreases the cost of production. The absorption band is 300nm, which is why it is called Fm3m. The unit cell is a clear pane of calcium fluoride.

It is produced as a thin film of Calcium Fluoride. This material has a high band gap, a high dielectric constant, and a high laser damage threshold. Additionally, the material is extremely durable in normal atmospheres, which makes it a good material for optical components. Furthermore, the crystal is made with a single-crystal optical quality. If you are looking for a crystal, calcium fluoride may be the right choice for you.

When growing crystals, it is important to remember that the properties of the material are crucial. Besides the purity, calcium fluoride wafers have other properties. For instance, they can be used for laser applications. Their high transmission range, refractive index homogeneity, and laser-damage threshold make them ideal for optical components. Unlike other optical components, CaF2 wafers can be fabricated from high-purity materials. The materials can be made into various types of electronic equipment.

There are several types of Calcium Fluoride wafers. One of the most common is the regent grade, which is also called regent grade. It has a high transmission range and is also resistant to laser damage. It can be etched to make optical components and has excellent IR characteristics. Its refractive index changes over time and depends on the temperature of the substrate.

The optical properties of calcium fluoride wafers vary from product to product. The primary characteristic of a CaF2 window is the high light transmission range. In addition to this, it has a high laser damage threshold and a broad transmission range. Its low density makes it ideal for optical components. Its excellent machinability makes it a desirable component. The other main characteristic is its low thermal conductivity, which is important for many applications.

Infrared technology uses a wide range of wavelengths. To increase the range of infrared light, this material can be patterned with a special technique. When a laser passes through the material, it causes the material to absorb a light in the wavelength that it emits. When a laser is used to cool a spacecraft, it has high thermal conductivity.

Despite being a common optical material, it can be expensive to produce. For infrared applications, it is necessary to obtain an ultra-thin, low-cost substrate. These wafers have an ultra-low melting point and a high melting point, which makes them very expensive. Moreover, it's important to select a material with good optical properties, so it can withstand a wide range of temperatures.

Although calcium fluoride is relatively inexpensive to produce, the cost of natural fluorite is still very high. This is why it's important to choose a high-purity material. It is more cost-effective and more reliable. A low-cost crystal is an excellent option for infrared applications. A good quality one will have very high absorption bands. The other advantage of calcium fluoride is that it's also more stable than its counterparts.

The price of Calcium Fluoride varies according to the quantity and configuration. Depending on the application, these materials are useful in many applications. Using them in photovoltaic cells, for example, is particularly advantageous. They're inexpensive, durable, and environmentally friendly. These materials can also be used to produce photovoltaic panels and solar cells. They can also be used to create lasers and other electronic devices.

 

Calcium Fluoride (CaF2) Windows

Below are just some of our CaF2 substrates that we have in stock:

  • (100), 10x10x 0.5 mm 2 Sides polished
  • (100), 10x10x 0.5 mm 1 Side polished
  • (100), 10x10x 1.0mm , 1 Side polished
  • (100), 10x10x 1.0mm , 2 Side polished
  • (111), 10x10x 0.5mm , 2 Side polished
  • (111), 10x10x 1.0mm , 1 Side polished
  • (111), 10x10x 1.0mm , 2 Side polished
  • (111), 1"x1.0 mm , 2 Side polished
  • single crystal for evaporation, purity >99.995%, 5x5x5 mm as cut

Sputtering Depostion

Clients use the following CaF2 specs to sputter in the TIFR lab.

Calcium Fluoride Crystal Substrates

  • CaF2, (100), 10x10x 0.5 mm 1 Side polished QTY : 10 no
  • CaF2, (111), 10x10x 0.5mm , 1 Side polished QTY : 10  no
  • CaF2, (100), 2 inch dia x 0.5 mm 1 Side polished  QTY : 1 no
  • CaF2, (111), 2 inch dia x 0.5mm , 1 Side polished  QTY : 1 no

CaF2 for FTIR

Researchers use CaF2 for Fourier-transform infrared spectroscopy (FTIR). This method obtains the infrared spectrum of absorption or emission of a solid, liquid or gas. An FTIR spectrometer simultaneously collects high-spectral-resolution data over a wide spectral range.

Material Safety Data

MSDS avaialable upon request.

Can Fajan's Rules Explain Why Calcium Fluoride Has a Lower Melting Point Than Calcium Oxide?

Can Fajan's rules explain why Calcium Fluoride has a lower melting point than calcium oxide? The answer is yes, but the process of comparison is not straightforward. The difference in the compounds is due to the charge distribution. In general, a compound with a higher charge has a higher melting temperature than a compound with a lower charge.

According to Fajan's rules, a molecule's covalent character depends on its electrostatic force and effective nuclear charge. The latter, which is the most important factor, is related to the size and relative charges of the cation and the anion. As the size increases, the effect of oppositely charged ions is lessened. Thus, the melting point of CaF2 is lower than that of its cousin, iodide.

An electronegativity difference between a cation and an anion is a good predictor of the type of chemical bond. A greater difference in electronegativity between two molecules means that the bonds are more polar. Therefore, Linus Pauling proposed an empirical relationship between percent ionic character and the difference in electronegativity between the two molecules. This is shown in the red curve below.

Can Fajan's rules explain why CaO has a lower melting point than CaF2? This question is controversial but is a common question among chemists. For example, the difference between the two compounds in terms of their molecular structure is the primary factor behind the difference between their melting points. If a substance has a low molecular weight, it will have a lower melting point than one with a high molecular mass. If it is larger, it will be more polar.

Can Fajan's rules explain why CaO has a lower melting point than CaF2? In addition to being covalent, CaF2 is also an ionic compound. This means that it contains a cation that is conjugated with a base, while a cation that has a high charge has a lower charge than a cation.

The rules based on the Effective Nuclear Charge and Electronegativity can explain why CaF2 has a lower melt point than CaO. By comparing the ionic nature of the two molecules, they can understand why the former is warmer than the latter. And the answer to this question can be found in a number of other ways. For example, an ionic compound contains more potassium than CaF2.

As a weak acid, CaF2 has a lower melting point compared to its sister, the latter has a higher melting point than the former. An ionic compound is an acid that has a smaller melting point than CaO. An ionic compound can have a lower melting temperature than a cation with a higher charge.

The chemical properties of CaF2 are a result of its ionic charge. In contrast to calcium, strontium ions are larger than calcium and fluorine. This means that $ceCaF2$ will have a higher bond strength than CaO. A higher bond strength means more energy is required to break it. It is thus essential to understand the differences between the two compounds in order to understand how they differ.

In general, ionic charge can be determined through the electrochemical equation. Hence, the electronegativity of a compound will help you determine its ionic character. The greater the difference, the higher the degree of polarity of the bond. If the difference is greater, it indicates that the bond is less ionic. If it is smaller, the chemical reaction will not occur.

An ionic compound is an ionic compound. If the ionic compounds were liquids, they would not be polar. This is because ionic compounds have a low melting point. The opposite is true when the ionic charge of a compound is large. This results in a higher polarization. Moreover, the difference between the ionic charge and the ionic capacity of a substance is smaller.