II-VI IR Optics & Materials

This site features information on our complete line of industry-leading precision optics products, including: OEM-quality replacement CO2 laser optics and nozzles, The MP-5®® ultra-low absorption focusing lens, The Variable Radius Mirror (VRM) — also known as a deformable mirror or adaptive mirror, Scanning laser system optics for low-power applications such as marking, engraving, and via hole drilling, Information on proper cleaning and handling of CO2 laser optics, Tutorials on choosing a focusing lens, polarization, and additional topics .

Products

II-VI IR Optics & Materials

375 SAXONBURG BLVD
SAXONBURG, PA 16056
UNITED STATES
T. +1 724-352-1504
F. +1 724-352-4980
laser.solutions@ii-vi.com

CO2 Laser Optics

Optical Materials

1 Micron Optics

IR Thermal Imaging Optics

Capabilities

Thin-Film Coating

1 Micron Optical Coatings

The following coatings are available for high power 1 micron optics:

  • Pulsed Dual Enhanced Silver for 1.06μm and 0.6328μm -PDES
    The Pulsed Dual Enhanced Silver (PDES) coating was developed specifically for applications using pulsed YAG lasers where a moderate level of damage threshold is required. The coating reflectivity has been optimized for 1.06μm and 0.6328μm wavelengths.
  • High-Efficiency Anti-Reflective (NAR) Coating on Zinc Sulfide MultiSpectral (ZnS MS) for NIR, 1.03μm, 1.064μm, 1.07μm
    This coating is designed to give low reflectance, low absorption and high transmittance. Especially useful for high power laser systems. This coating on ZnS MS will provide advantages over fused silica in high power applications due to its higher thermal conductivity and refractive index.
  • Zero Phase Shift Total Reflector (NTR) Coating for NIR, 1.03μm, 1.064μm, 1.07μm
    Zero Phase Shift Total Reflector (NTR) coating for silicon or copper substrates. Designed as a high reflective zero phase shift coating to be used as a beam bender before or after a 90° phase retarder to reduce phase shift changes in beam delivery systems.
  • 90° Reflective Phase Retarder (NRPR) Coating for NIR, 1.03μm, 1.064μm, 1.07μm
    High reflective 90° NRPR is a coating for silicon and copper substrates. Introducing a quarter-wave 90° NRPR into the beam delivery path eliminates kerf variations by converting linear polarization to circular polarization. Circular polarization consists of equal amounts of S-polarization and P- polarization for any orientation of the beam. Therefore all axes encounter the same composition of polarization, and material is removed uniformly regardless of cut direction.Download the Data Sheet
IR Thermal Imaging Coatings

High-Efficiency Broadband Anti-Reflective (BBAR)  Coating on

  • Germanium (Ge), 3 – 5µm
    High-Efficiency Broadband Coating for the 3 – 5µm range gives low reflection and high transmission for use in passive imaging systems. This coating is not intended for high power laser applications.
  • Germanium (Ge), 8 – 12 µm
    This low reflection/high transmission coating is designed to cover the 8-12µm region and satisfies the environmental requirements listed below.This low reflectance coating is intended to be used in FLIR or passive radiation systems.
  • Silicon (Si), 3 – 5µm
    High-Efficiency Broadband Coating for the 3 – 5µm range gives low reflection and high transmission for use in passive imaging systems. This coating is not intended for high power laser applications.
  • Zinc Sulfide MultiSpectral (ZnS MS), 3 – 5µm
    High-Efficiency Broadband Coating for the 3 – 5µm range gives low reflection and high transmission for use in passive imaging systems. This coating is not intended for high power laser applications.
  • Zinc Sulfide MultiSpectral (ZnS MS) and Zinc Sulfide Regular (ZnS), 8 – 12µm
    This low reflection/high transmission coating is designed to cover the 8 – 12µm region and satisfy the environmental requirements listed below. While low in absorption it is intented to be used in FLIR or passive radiation systems.This coating can be applied to ZnS Regular and ZnS MultiSpectral Grades.
  • Zinc Selenide (ZnSe), 3 – 5µm
    High-Efficiency Broadband Coating for the 3 – 5µm range gives low reflection and high transmission for use in passive imaging systems. This coating is not intended for high power laser applications.
  • Zinc Selenide (ZnSe), 8 – 12 µm
    This low reflection/high transmission coating is designed to cover the 8 – 12µm region and satisfies the environmental requirements listed below.This low reflectance coating is intended to be used in FLIR or passive radiation systems.

High-Efficiency Dual Broadband (DBBAR) Coating on

  • Germanium (Ge) for 3 – 5µm and 8 – 12µm
    This coating is designed to give low reflectance and high transmittance when used in passive imaging systems. This coating is not intended for high power laser applications.
  • Zinc Selenide (ZnSe) for 3 – 5µm and 8 – 12µm
    This coating is designed to give low reflectance and high transmittance when used in passive imaging systems. This coating is not intended for high power laser applications.

Download the Data Sheet

Crystal Growth

II-VI Incorporated was founded in 1971 to supply better materials to infrared optics producers. Initially starting with cadmium telluride, II-VI gravitated to producing zinc selenide and zinc sulfide during the 1980s. II-VI’s vertical integration, from materials growth through precision optics manufacturing, positions the company as the leader in CO2 laser optics. II-VI produces zinc selenide and zinc sulfide by using a process called chemical vapor deposition (CVD). In specially designed furnaces, zinc vapors are reacted with hydrogen selenide or hydrogen sulfide gas to produce zinc selenide or zinc sulfide, respectively. The reaction deposits the material in crystalline form on the deposition plates. Following the removal from the furnace, material is cut, polished, and tested for optical quality. The material is then used to produce optics or sold as sheet stock or optic blanks. 

II-VI Infrared produces the following infrared materials

  • Zinc selenide
  • Zinc sulfide regular grade
  • Zinc sulfide MultiSpectral grade

Zinc sulfide MultiSpectral grade is regular grade material treated after growth using a hot isostatic press process to remove growth voids and defects. The result is a product that is useful within the infrared and visible spectrums. II-VI offers a wide variety of standard sizes and thicknesses for sheet stock and optic blanks, and produces custom sizes and thicknesses upon request.

Diamond Turning Capabilities

Optics Fabrication & Optical Assembly

Finished optics manufacturing requires unique techniques coupled with precision-machining and fabrication. II-VI’s Saxonburg plant has provided optical fabrication capabilities to our customers since 1971. On average, our operators have 15 years of optical fabrication experience. Although we specialize in build-to-print work, our state-of-the-art equipment enables production ranging from prototypes to OEM products.
Our production facilities in Saxonburg, Singapore, and Suzhou are custom designed for grinding and polishing infrared optics.
The finished products produced in our facilities include windows, lenses, prisms, modulators, waveplates, mirrors, beamsplitters, and cylinders. In addition to finished optics, we also produce generated, core-drilled, and sufficient material to yield (SMTY) blanks.
The blanking and grinding department is capable of shaping and machining varieties of optical materials and geometries. To achieve our customer’s requirements, II-VI’s skilled technicians utilize computer numeric controlled (CNC) shaping and precision-curve generating equipment.
Polishing is performed on numerous materials and configurations. Opticians utilize the following methods to polish optics: CNC high-speed polishing, double-sided polishing, conventional-spindle polishing, and cylinder polishing.

II-VI’s optical assembly capability allows customers to minimize optic handling, thereby reducing risks such as damage and contamination. We offer these vertically integrated capabilities:

  • Pro/ENGINEER® 3D modeling
  • Precision machine shop work
  • Plating processes
  • Diamond-turning
  • Helium leak testing
  • Laminar flow hood
  • Optical testing and alignment

II-VI designs and manufactures prototypes or production quantities. Our engineers can design unique mount and assembly procedures or build optical assemblies to original equipment manufacturer (OEM) specifications. This latter ability reduces the work needed at the customer’s facility to assemble the optical component for use.

Special facilities, manufacturing, procedures, and technician training programs are essential to the repeatability and precision required in the optical and electro-optical components and device assembly. At II-VI, various optics assembly and mounting stages are performed in Class 10,000 clean rooms and on Class 1,000 Laminar Flow benches.

By designing and producing optical assemblies, II-VI helps the customer:

  • Reduce the risks associated with handling optics
  • Reduce the potential for distorting the optic within the assembly
  • Enable mounted optic testing
Optical Design & Engineering

II-VI Infrared engineering services is dedicated to working collaboratively with our customers to provide innovative engineering solutions for our customer’s projects and products. By leveraging our manufacturing processes and testing capabilities, II-VI Infrared engineering incorporates cost effective manufacturing into optical components and opto-mechanical assembly designs, providing quick turn-a-round time for prototyping and supporting volume production.
Our experienced and highly motivated engineering team utilizes various engineering and design/analysis tools to provide our customers with the assurance that their product will perform above and beyond specifications and reduce risk. In collaborating with our customers and II-VI Infrared manufacturing engineers we are committed to addressing our customer’s needs.

Engineering tools:

Optical:

  • Zemax
  • OSLO
  • Fred

Mechancial:

  • PTC CREO-3D modeling
  • PTC CREO Simulate-Thermal/Structural
  • PTC CREO Mechanism
  • PTC MathCad
  • Zemax LensMechanix
  • Ansys-Thermal/Structural/CFD

Electrical:

  • CST Suite

II-VI Infrared provides engineering solutions for a wide range of optical and opto-mechanical components. Our engineering staff assists our customer’s on optical and mechanical material selections, optical simulations and design, coating design and mechanical design and mechanical simulations. We collaborate with our customers to provide innovative and economical solutions.

Quality Assurance

The quality assurance program at II-VI includes thorough testing, documentation, and statistical analysis to ensure that each optic and component performs to established standards. Dimensional and surface testing equipment, both optical and mechanical, coupled with spectrophotometers and precision reflectivity and transmission test systems, guarantee consistent quality. The material absorption is measured by custom designed laser calorimeters.

Resources

Resources

CO2 Laser Tutorials 

II-VI Incorporated Introduces Industry’s First Aspheric Sapphire Optics for High-Power Industrial Lasers

By II-VI  /  November 7, 2019
II‐VI Incorporated (Nasdaq: IIVI), a leader in laser optics and subsystems, today announced the introduction of the industry’s first aspheric sapphire optics for next-generation laser systems that extend far beyond the 10 kW range. Next-generation industrial lasers for cutting and welding are increasingly achieving output powers in excess of 10 kW, driving laser optics requirements to higher levels of performance and durability. II-VI is first in the industry to manufacture aspheric lenses in high-quality sapphire materials to submicron optical tolerances,...
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Upcoming Trade Shows – Infrared

november

27nov(nov 27)1:00 am28(nov 28)1:00 amMetalMadrid 2019

december

04decallday06Photonix 2019

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