+1 631-805-9055

Optical Products For The InfraRed

Our extensive catalog includes off-the-shelf and custom-engineered components using advanced materials like Zinc Selenide, Germanium, and Silicon. Backed by experienced engineers and reliable global shipping, we deliver performance, quality, and value—on time, every time.
get in touch
Infrared Optical Products

Optical Products for the InfraRed

INFRARED OPTICAL PRODUCTS is rightly named as we cover broad range of products. Now you can look to us for off-the-shelf Infrared Transmitting Lenses – spherical & cylindrical; Lens Assemblies for 3–5 microns & 8–12 microns use; Partial Reflectors – plano & concave; Mirrors, Windows, Beam Expanders; Filters – NDF & interference.
This catalog has the most comprehensive listing of Infrared optical products using materials like: Zinc Selenide, Germanium, Silicon, Zinc Sulphide, Cleartran, Barium Fluoride. With over 25 years of experience in this line, you can be confident in dealing with us for the right products and on-time deliveries. Our in-house engineering staff, experienced craftsmen & computer facilities will help you in selecting the best material & design at the right prices.

Product Catalogue
Our Products

Useful Material information

Zinc Selenide:

CVD produced ZnSe transmits very well from 0.6 microns in the visible to 15 microns in the infrared. Due to its low absorptivity at several laser wavelengths ZnSe is excellent in many laser systems for lenses, windows, output couplers and beam splitters. Because of its broad transmission range and specifically its low absorption and scatter in the 8–14 micron region, ZnSe is a standard material for use in FLIR and other infrared instrument or imaging systems. ZnSe is non-hygroscopic, chemically stable unless treated with strong acids, and safe to use in industrial and field applications as well as in laboratory environments.

ZNSE

ZINC SELENIDE

  • CVD Processed

  • Absorption Coefficient: < 0.005 cm⁻¹ @ 10.6 μ

  • Useful Transmission Range: 0.5 – 18 μ

  • Reflection Losses: 30% for 2 Surfaces @ 10.6 μ

  • Refractive Index: @ 10.6 μ = 2.400

  • Rupture Modulus: = 8500 psi

Barium Fluoride
BaF₂ is used for optical windows, lenses, and prisms in the 0.2–11 micron range. The material is very hard but is very sensitive to thermal shock.
Barium Fluoride

BARIUM FLUORIDE

  • Useful Transmission Range: 0.15 – 11.5 µ

  • Reflection Losses: 6% for 2 surfaces @ 4.0 µ

  • Refractive Index: @ 3 µ = 1.461

  • Rupture Modulus: 3900 psi

CALCIUM FLUORIDE
CaF₂ is used for optical windows, lenses and prisms in the 0.15–9 micron range. Because of its low absorption at wavelengths shorter than 6 microns, CaF₂ is particularly popular for high power laser optics in that wavelength range. Due to its low refractive index, it can be used without anti-reflection coating.
CALCIUM FLUORIDE

CALCIUM FLUORIDE

  • Useful Transmission Range: 0.13 – 8.0 µ

  • Reflection Losses: 5.6% for 2 surfaces @ 4.0 µ

  • Refractive Index: @ 5 µ = 1.400

  • Rupture Modulus: 5300 psi

Germanium
Ge is a versatile IR material used commonly in imaging systems and instruments in 2–14 micron region for lenses, windows and output couplers for low power CW as well as pulsed TEA CO₂ lasers. Ge is limited to thruput power range of 50–100 watts before the on-set of significant thermal lensing or thermal runaway. Ge is non-hygroscopic and has good thermal conductivity, excellent surface hardness, and good strength.
GERMANIUM​

GERMANIUM

  • Absorption Coefficient: < 0.03 cm⁻¹ @ 10.6 µm

  • Useful Transmission Range: 2 – 14 µ

  • Reflection Losses: 53% for 2 Surfaces @ 10 µ

  • Refractive Index:
    @ 10.6 µ = 4.0029

  • Rupture Modulus: = 10,500 psi

ZINC SULFIDE
CVD produced ZnS comes in 2 grades. The regular grade is useful for FLIR applications and has good transmission in 1–12 micron range, with reasonable hardness and good strength. The other grade water-clear ZnS called Cleartran (trademark of CVD, Inc.) transmits not only in the infrared but also in the visible in the .4 to 12 micron range.
ZINC SULFIDE​

ZINC SULFIDE

  • Useful Transmission Range: 4.12 µ

  • Reflection Losses: 30%

  • Refractive Index: 2.2 at 10.6 µ

  • Rupture Modulus: 15,000 psi

SILICON
Si is a very useful IR-material in the 3–5 micron atmospheric window where many Infrared Avionics systems are operational. Optical grade polycrystalline Si is used to make lenses, domes, and windows, etc. Because of its high thermal conductivity, it is also a very good mirror substrate for high power lasers.
SILICON​

SILICON

  • Absorption Coefficient: 0.010 cm⁻¹ @ 5.0 µ

  • Useful Transmission Range: 12.8 µ

  • Reflection Losses: 46% for 2 surfaces @ 10 µ

  • Refractive Index: @ 8 µ = 3.4184

  • Rupture Modulus: 19,000 psi

Product Catalogue

Warranty

Optical components designed and manufactured by INFRARED OPTICAL PRODUCTS are unconditionally warranted to meet or exceed the stated specifications and be free from defects in materials and workmanship. We stand by our products all the way!

Ordering Information

PRICES:
All prices are listed in U.S. Dollars and payable in US funds. Prices are F.O.B. Farmingdale, NY, current at the time of publication and subject to change without notice.

SHIPPING:
Unless specific shipping instructions are given with an order, shipment normally will be made by UPS, Air Freight, or Air Parcel Post.

TERMS:
Terms of payment are net 30 days, on open account with established credit.

To Order

INFRARED OPTICAL PRODUCTS
19 Equestrian Court,
Huntington, NY – 11743
Telephone: +1 631–805–9055
E-mail: iroptical@aol.com

© 2025 Infrared Optical Products | All Rights Reserved

Made by Ag Designs