Infrared Optics
Infrared Optics
Highly integrated, superior-performing, infrared optical components that leverage our combination of technical skills, unique manufacturing competencies, and extensive metrology capabilities.
Infrared Optics optimized for
- Abrasive environments
- Transmission in high angles
- High long-term stability
Highly accurate complex shapes
We manufacture complex shapes on lenses, such as step profiles or off-axis shapes utilizing several techniques either separately or in tandem to achieve superior product specifications, such as surface accuracies to better than 100 nm:
- High-precision CNC processing
- Diamond turning
- Magnetorheological finishing (MRF®)
- Traditional polishing
AR coatings for Infrared Optics
Durable antireflection coatings from G&H are tailored to the application. Typical antireflection (AR) coatings include Broadband, V-coat, and dual-band. Broadband coatings perform well from 400-14000 nm wavelength ranges. Reflectivity as low as 0.25% for the 3-5 micron range is achievable.
Extensive metrology capabilities
Precise metrology capabilities are critical for meeting and exceeding difficult specifications:
- QED SSI stitching interferometry measures aspherics, full hemispheres, and OD up to 200 mm
- Taylor Hobson contact metrology tools measure surface roughness and surface accuracies up to 60 nm
- NewView™ 5000 white light interferometer is used for surface analysis and micro-roughness down to 2 Å RMS
- Computer-generated holograms (CGH) can be utilized for volume production and high-precision surface measurement.
Applications
Hyperspectral imaging, infrared microscopy, laser scanning microscopy, metrology, optical failure analysis for semiconductor processing, range finding, reconnaissance, surveillance, target identification, targeting and designating, and thermal imaging.
G&H has received IS09001 certification across all of its manufacturing sites while AS9100C certification has been achieved at select facilities.
Specifications
| Specification | Description |
|---|---|
| Substrate materials | ZnSe, ZnS, Ge, CaF2, MgF2, AMTIR, chalcogenides, silicon, sapphire |
| Sizes | 3 to 250 mm |
| Surface roughness (Å, RMS) | 10 |
| Surfaceaccuracy | λ/20 |
| Scratch-dig | 10-5, material dependent |
Actual specifications are dependent upon design, geometry, and material choices.
Coatings
From high transmission broadband anti-reflection coatings to V-coats for high energy applications, our extensive coating capabilities for precision optical components deliver performance across the spectrum from the UV to the FIR. Take a closer look at our optical coatings service.
Metrology
We have made a significant investment in metrology equipment to ensure that our customers receive quality, high-performing precision optical components. More details on our metrology capabilities can be found on our metrology page.
Environmental testing
Environmental testing of components and coatings is critical for the assurance of performance in rugged conditions. G&H environmental testing capabilities include MIL-C-675C, MIL-C-48497A, MIL-E-12397, and MIL-M-13508C for endurance against abrasion, adhesion, humidity, temperature, and environmental conditions.