ZnSe Window

Our ZnSe Window is made with high-quality Zinc Selenide material, making it
ideal for use in laser systems. The window ensures high transmittance in the
infrared region, allowing for precise and accurate laser processing. Znse focus
lens, znse laser lens is well-suited for optical elements in high-resolution
thermal imaging equipment. ZnSe also transmits some visible light, unlike
Germanium and silicon, thereby allowing for visual optical alignment. However,
zinc selenide window is quite soft and will scratch easily. ZnSe window has an
index of refraction of 2.403 at 10.6 µm.

ZnSe Window Specification

Zinc selenide (ZnSe) windows are a popular choice for a wide range of
applications due to their excellent optical properties, including high
transmittance in the mid-infrared (IR) region and low absorption in the visible
and near-IR regions. They are commonly used in scientific, medical, and
industrial applications where optical clarity and high transmission are
critical.
Material CVD ZnSe
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 product is designed to withstand extreme heat, radiation and chemicals,
ensuring durability and long-lasting performance. It comes in a range of sizes
to cater for varying laser system configurations.


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With TC Optik's optical Window, you can expect superior performance,
reliability and longevity - all at an unbeatable price point. Whether you're
involved in research, development or industrial applications, our custom
optical window is the answer to your laser processing needs. Get in touch with
us today to learn more about our ZnSe Window and how it can benefit your laser
system applications.

Properties and Characteristics of ZnSe Selenide Windows
Zinc Selenide windows are the best choice for a variety of IR applications and
high-power CO2 laser systems. ZnSe has low IR absorption and high resistance to
thermal application area. Zinc Selenide windows are best for thermal imaging.
Zinc selenide windows are used in infrared imaging applications in scientific,
military or search and rescue applications. ZnSe has a high index of refraction
which requires an anti-reflection coating to achieve high transmission.ZnSe has
good transmission from 3um-12um.Long wavelength transparency is crucial for
imaging room temperature objects, which radiate at a peak wavelengths of
approximately 10 µm with very low intensity.

Optical Properties
ZnSe windows have a high transmittance of over 90% in the mid-infrared (IR)
region, making them an ideal material for use in IR spectroscopy and imaging
applications. They also have low absorption in the visible and near-IR regions,
making them an ideal choice for high-power laser applications.

Physical Properties
ZnSe windows have a low thermal expansion coefficient and a high thermal
conductivity, which makes them an ideal choice for applications that require
high thermal stability. They also have a low density and high hardness, which
makes them resistant to scratching and other forms of damage.

Applications of ZnSe Windows
Infrared Spectroscopy
ZnSe windows are commonly used in infrared spectroscopy, where their high
transmittance in the mid-IR region allows for accurate measurements of
molecular vibrations and other spectral features.

Medical Imaging
ZnSe windows are also used in medical imaging applications, such as in
endoscopes and other medical devices, where their high transmittance in the
mid-IR region allows for detailed imaging of internal tissues and organs.

Laser Systems
ZnSe windows are used in high-power laser systems, such as CO2 lasers, where
their low absorption in the visible and near-IR regions allows for efficient
transmission of laser energy.

Industrial Applications
ZnSe windows find use in a variety of industrial applications, including gas
analysis, semiconductor processing, and environmental monitoring, where their
high transmittance and thermal stability make them an ideal choice.

Cleaning, Handling and Maintenance of ZnSe Windows
Proper handling and maintenance are important for maintaining the optical
quality of ZnSe windows and ensuring their long-term reliability. It is
important to avoid touching the surface of the window with bare hands or other
objects, as this can leave oils or other contaminants on the surface that can
degrade the optical quality. ZnSe windows should be cleaned using a mild
detergent and water solution or with isopropyl alcohol, and it is important to
use a soft, lint-free cloth or a lens cleaning tissue to avoid scratching the
surface.

ZnSe is very soft material, so we should very careful about it. It requests
professional people to make it clean. It is also a toxic material. Great care
must be taken in handling and cleaning the material. Wear gloves at all times
to avoid the risk of contamination. Hold only the edge to prevent scratches.
Wash hands after use. when holding the optics by its edges. wipe the surface
gently with a damp cotton ball. Do not rub, and do not exert pressure. use only
surgical quality cotton balls.

ZnSe focus lens VS ZnSe laser lens
ZnSe focus lens and ZnSe laser lens are both made of the same material, Zinc
Selenide, which is commonly used in laser optics due to its high transmittance
in the infrared region.

ZnSe focus lens is designed to focus the laser beam to a precise spot on the
material being processed. It is used in laser cutting, engraving and marking
machines where accuracy and precision are critical. The focus lens is
adjustable, allowing the operator to adjust the focal length to match the
thickness of the material being processed.

ZnSe laser lens, on the other hand, is a protective cover that is placed over
the laser cavity to protect it from dust and debris. It is also used to block
stray light from entering the cavity and interfering with the laser beam.

In summary, ZnSe focus lens is used to concentrate the laser beam to a pinpoint
accuracy, whereas ZnSe laser lens acts as protection.

FAQs of ZnSe Selenide Windows
What is the refractive index of ZnSe?
A: The refractive index of ZnSe is about 2.4.

What is the thermal conductivity of ZnSe?
A: The thermal conductivity of ZnSe is about 18 W/mK.

What is the typical thickness of ZnSe selenide windows?
A: ZnSe selenide windows are available in thicknesses ranging from a few
millimeters to several centimeters.

Can ZnSe windows be used in high-power laser applications?
A: Yes, ZnSe selenide windows have low absorption in the visible and near-IR
regions, which makes them an ideal choice for high-power laser applications.

As one of znse window manufacturers,we will do our best to meet all the needs
of customers.

More kinds of optical components china, please visit our website.

Minimum Order: 100 pieces

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