Custom Optical Windows

GH Optics introduces its advanced LWIR Ge-free Optical Windows, a cutting-edge solution designed for long-wave infrared (LWIR) applications in the 8–12 μm spectral range. Engineered using proprietary chalcogenide glass substrates from the GHW series, these windows offer a high-performance alternative to traditional germanium optics. By eliminating the need for germanium, GH Optics delivers a cost-effective, lightweight, and thermally stable solution without compromising on optical quality.These optical windows are enhanced with either DLC (diamond-like carbon) or HD (hard film) coatings, combined with AR (anti-reflection) layers, achieving transmittance rates exceeding 94%. This makes them ideal for demanding infrared systems where clarity, durability, and cost-efficiency are paramount.Product ParametersSubstrate MaterialGe-free Chalcogenide glass GHWDiameter Tolerance+/- 0.1 mmThickness Tolerance+/- 0.1 mmParallelism≤ 3 arcminChamfer0.2 mm x 45°Surface Quality60/40-80/50Flatness< 5 fringesCoatingDLC/AR or HD/ARKey FeaturesGermanium-Free Design: Utilizes GH Optics’ proprietary GHW chalcogenide glass, eliminating reliance on expensive and supply-sensitive germanium.High Transmittance: Achieves >94% transmittance in the LWIR band (8–12 μm), ensuring superior signal fidelity for infrared imaging and sensing.Advanced Coating Technology: Available with DLC or HD coatings plus AR layers, providing excellent scratch resistance, environmental durability, and minimized reflection losses.Thermal and Mechanical Stability: Offers robust performance across varying environmental conditions, making it suitable for field-deployed systems.Cost Optimization: Reduces overall system costs while maintaining high optical performance, ideal for scalable industrial and research applications.ApplicationsLWIR Ge-free Optical Windows are optimized for a wide range of infrared technologies, including:Infrared Thermal Imaging: Enhances image clarity and system reliability in surveillance, automotive night vision, and industrial inspection.Photoelectric Detection Systems: Improves sensitivity and accuracy in scientific instrumentation and remote sensing.Environmental Monitoring: Suitable for gas detection and spectroscopic analysis in harsh environments.Defense and Aerospace: Offers lightweight, durable optics for UAVs, targeting systems, and infrared countermeasures.Medical and Industrial Diagnostics: Enables precise thermal profiling and non-invasive diagnostics.What's Next?GH Optics continues to innovate in the field of infrared optics, expanding its portfolio of germanium-free solutions to meet the evolving demands of global industries. The LWIR Ge-free Optical Windows represent a significant step forward in sustainable, high-performance infrared technology.For researchers, engineers, and procurement specialists seeking reliable, cost-effective alternatives to germanium optics, GH Optics provides a compelling solution backed by deep expertise and rigorous quality standards.Contact our sales team today to request a quote, discuss customization options, or learn more about how LWIR Ge-free Optical Windows can enhance your infrared systems.

Together with our supplier Vortex, we are able to provide optical beamsplitters and dichroic filters that are placed in optical systems usually at 45° to separate (or combine) different wavebands or wavelengths. One band is reflected from the front surface, while the 2nd band is transmitted through. Vortex’s beamsplitters and dichroic filters can be used to separate different planes of polarization. Some examples of Vortex’s previous work: Beamsplitter for Visible Region to Split/Combine Two Wavelength Bands, 45° Beamsplitter to Separate Two Wavelength Bands in the Mid IR Region at 45° Mid IR Filter Used for Separating S and P Polarization Bands at 45° Polarizing Beam-Splitter for S and P Polarization for 1550 nm Laser at 45° Filter for Separation of Visible and Far Infrared at 45° We are happy to provide a unique beamsplitter or dichroic filter – designed, specified and manufactured to your application’s requirements. Contact the AMS Technologies experts today to discuss your customized beamsplitter or dichroic filter solution!

OPTAplus designs and manufactures custom optical filters exactly tailored to the customer’s requirements. Custom optical filters are available with dimensions ranging from 3.0 mm to 200.0 mm. OPTAplus’ portfolio comprises custom optical filters made from a broad range of materials like various optical glasses, quartz glass, Borosilicate glass, color-filter glass as well as crystal materials like Si, Ge, MgF2, CaF2, Sapphire, etc. Polishing is available either one-side or double-side. On request, OPTAplus’ custom optical filters can be coated with a variety of coatings for the NIR, VIS and UV range for single wavelength or a spectral area, from single-layer or multi-layer anti-reflection (AR) coatings to metallic or dielectric reflective coatings to polarizing coatings. Please contact the AMS Technologies optical filter experts to discuss your customized optical filter solution that exactly matches your application’s requirements.