September 2026 Hot Products
Demand for infrared optics, polarisation components, and machine vision products remained strong throughout September. The top-selling products include plate beamsplitters for optical system integration, zinc selenide windows for infrared applications, and quartz waveplates for laser and polarisation control systems.
Plate beamsplitters
Plate beamsplitters were one of our strongest-selling products in September, driven by demand from machine vision and instrumentation applications. By splitting incident light into reflected and transmitted beams, they allow optical systems to direct, monitor, or analyse light paths with minimal impact on system design.
Why customers specify it
- • Precise beam splitting
- • Multiple reflection/transmission ratios
- • Visible, NIR and telecom wavelength options
- • Low ghosting with dielectric coatings
Common applications
- • Machine vision systems
- • Interferometry
- • Optical instrumentation
Custom options
- • Custom reflection/transmission ratios
- • Bespoke dimensions
- • Application-specific wavelength ranges
Zinc Selenide Windows
Zinc Selenide windows remained a popular choice throughout September for infrared imaging and CO₂ laser systems. Their high infrared transmission makes them suitable for applications where optical performance is required across long wavelengths.
Why customers specify it
- • High infrared transmission
- • Suitable for CO₂ laser systems
- • Available with AR-coated options
- • Laser-grade and infrared-grade material options
Common applications
- • CO₂ lasers
- • Infrared imaging
- • Thermal imaging systems
Custom options
- • AR and DLC coatings
- • Custom diameters and thicknesses
- • Application-specific designs
Quartz Waveplates
Quartz waveplates continued to be one of our most frequently specified polarisation optics in September. Available in both low-order and zero-order designs, they are used to control polarisation states in laser and photonics systems.
Why customers specify it
- • Polarisation control
- • High transmission and low absorption
- • Quarter-wave and half-wave options
- • Low-order and zero-order designs available
Common applications
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- • Optical isolators
- • Laser power attenuation
- • Electro-optical modulation
- • Medical microscopy
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Custom options
- • Custom wavelengths
- • Alternative retardation values
- • Application-specific mounting requirements
Buy Low Order Quartz Waveplates Buy Zero Order Quartz Waveplates
Need a custom optical solution?
Alongside our stock range, Knight Optical manufactures custom optics to meet specific wavelength, dimensional, coating, and performance requirements.
If you are developing a new optical system or looking for an alternative specification, contact our technical sales team to discuss your application: [email protected]