Quartz Window

This non-crystalline, uv fused silica glass combines a very low thermal
expansion coefficient with good optical qualities and excellent transmittance
in the ultraviolet region. Transmission and homogeneity exceed those of
crystalline quartz without the problems of orientation and temperature
instability inherent in the crystalline form. It will not fluoresce under UV
light and is resistant to radiation. Our fused quartz windows are made from
high-purity quartz, which offers superior optical transmission properties, as
well as exceptional thermal and mechanical performance.

Specification of Quartz Window
Material Fused Silica
Diameter 1 to 500 mm
Diameter Tolerance +0/-0.02 mm
Thickness Tolerance ±0.01 mm
Surface Quality 10-5
Surface Figure λ/10
Parallelism 1 Minute
Coating Uncoated, AR, HR, Beamsplitter, etc.

Our quartz glass windows are available in a variety of shapes and sizes,
including standard sizes and custom designs to suit your specific needs. We
also offer various coatings and treatments to enhance the performance of our
quartz windows, including anti-reflection coatings, hydrophobic coatings, and
more.

At TC Optik, we are committed to providing exceptional customer service and
support, with fast turnaround times and competitive pricing to meet your needs.
Contact us today to learn more about our optical window glass and how they can
help you achieve your optical and industrial needs.

Types of optical window glass for your needs:

BK7 optical windows

Custom sapphire windows

ZnSe laser lens

Germanium window

Silicon window

Borosilicate glass windows

Float glass optical windows

What's the difference between quartz windows and fused silica glass
Quartz windows and fused quartz glass are both materials that are commonly used
for optical windows and other high-performance applications. While they may
appear similar, there are some key differences between these materials.

1. Composition:

Quartz windows are made from natural quartz crystals that are mined from the
earth, while fused silica glass is produced by melting high-purity silica using
high-temperature techniques.

2. Purity:

Fused silica glass is typically purer than quartz, with a purity level of over
99.9%.

3. Transmission:

Both materials have excellent optical transmission properties, but quartz
typically has a lower transmission range in the ultraviolet spectral region
than fused silica glass.

4. Refractive Index:
Quartz has a slightly higher refractive index than fused silica glass.

5. Thermal Expansion:

Quartz has a higher coefficient of thermal expansion compared to fused silica
glass, making it more prone to thermal shock.

6. Cost:

Quartz is typically less expensive than fused silica glass.

Quartz windows are commonly used in applications that require a lower level of
purity and precision, while fused silica glass is often used in applications
that require higher levels of purity, precision, and performance, like in high-
end optical components, cutting-edge semiconductor OEM applications, and high-
intensity discharge lamps. Ultimately, the choice of material depends on the
specific application and the performance requirements of the project.

Fused silica glass properties
Fused silica glass is a high-purity form of silica that is produced by melting
high-purity silica at very high temperatures and then rapidly cooling it to
form a glass. Some key properties of fused silica glass include:

1. High purity: Fused silica glass is one of the purest forms of silica, with a
purity level of over 99.9%.

2. High temperature resistance: Fused silica glass can withstand temperatures
up to 1200°C without softening or undergoing deformation.

3. Low coefficient of thermal expansion: Fused silica glass has a very low
coefficient of thermal expansion, making it highly resistant to thermal stress.

4. High transmission: Fused silica glass has a very high transmission range,
allowing for excellent optical performance across a broad range of wavelengths.

5. Hardness: Fused silica glass is very hard and resistant to scratching,
making it ideal for use in harsh environments.

6. Low thermal conductivity: Fused silica glass has a low thermal conductivity,
which makes it an excellent insulator.

7. Chemical inertness: Fused silica glass is highly inert and resistant to
chemical attack, making it ideal for use in chemical and high-ph applications.

These properties make fused silica glass an excellent material for use in
optical applications, such as lenses, prisms, mirrors, and windows, as well as
in high-temperature applications, semiconductor-quality quartzware and other
high-performance applications.

Fused silica glass uses
Fused silica glass has a wide range of uses in various industries and
applications, including:

1. Optical components: Fused silica glass is used to make high-end optical
components such as lenses, prisms, mirrors, and windows. It has excellent
transmission properties in the ultraviolet, visible, and infrared regions of
the spectrum, which makes it ideal for use in a broad range of optical
applications.

2. Semiconductor processing: Fused silica glass is commonly used in the
semiconductor industry to manufacture wafer carriers, supply tubes, and other
components that require high-purity and resistance to high temperatures and
chemicals.

3. Aerospace: Fused silica glass is used to make windows and lenses for
aerospace applications, as it can withstand high temperatures, high radiation
levels, and environmental stresses.

4. High-temperature applications: Fused silica glass is used in high-
temperature applications like furnace observation windows, reflectors, and
insulators due to its high thermal stability and resistance to thermal shock.

5. Metrology: Fused silica glass is used in precision metrology and measurement
systems, such as interferometers and optical profilometers.

6. Military: Fused silica glass is used as a structural material in military
applications due to its high mechanical strength and durability.

7. Medical: Fused silica glass is used in medical applications, such as
microfluidic devices and lab-on-a-chip systems, for its chemical inertness and
biocompatibility with biological fluids.

The unique properties of fused silica glass make it an ideal material for a
broad range of high-performance applications across many industries.

IR vs. UV Grade Fused Silica
UV and IR grade fused silica are two different types of fused silica glass that
are optimized for use in different wavelength ranges of light.

UV grade fused silica has high transmission properties in the ultraviolet range
of the spectrum, typically between 180 to 400 nanometers (nm). UV grade fused
silica has a low level of impurities, which makes it ideal for use in
applications such as UV spectroscopy, imaging, and laser optics.

IR grade fused silica, on the other hand, has high transmission properties in
the infrared range of the spectrum, typically between 1.5 to 6 microns. IR
grade fused silica is optimized to have low absorption in the infrared region,
which makes it ideal for use in applications like Fourier transform infrared
(FTIR) spectroscopy, IR imaging, and high-temperature IR optics.

While both UV and IR grade fused silica have excellent thermal properties, high
mechanical strength, and low thermal expansion coefficients, their optical
properties are optimized for different ranges of the spectrum. Therefore, it is
important to choose the appropriate grade of fused silica based on the specific
application and wavelength range requirements.

If you want to buy fused silica lens, please leave us a message.

Minimum Order: 100 pieces

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