Focus On: Interferometry

Alongside our partners, Raptor Photonics and 4D Technology, we are able to provide a number of interferometry solutions that should be ideal for your application.

Enabling Interferometric Imaging at SWIR Wavelengths

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PhaseCam Vacuum-Compatible Interferometer

The PhaseCam® Twyman-Green system provides accurate, quantitative measurement of surface shape, even in the presence of vibration or air turbulence. The vacuum-compatible PhaseCam includes fully automated controls, enabling mounting in remote locations. The stainless steel case enables the PhaseCam to be operated within a vacuum chamber.

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ACCUFIZ D

Measure thin, transparent optics without coating the surfaces.

A short coherence length source and Dynamic Interferometry let you isolate and measure the individual surfaces of transparent optics such as windows and domes. Measure remote cavities and optical thickness, even on thinner materials.

The AccuFiz D Short Coherence Dynamic Fizeau interferometer provides high accuracy measurement of flat and curved transparent optics. Its short coherence length source means you can measure plane-parallel surfaces <0.2 mm apart without the need for coating to eliminate unwanted fringes. A fast, automated internal system lets you quickly scan to locate and isolate each surface.

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Shack-Hartmann Sensor vs Interferometer

A Shack-Hartmann wavefront sensor is an optical system that can detect wavefront errors. Like an interferometer, these sensors can be used to measure the shape and transmission quality of optics. While inexpensive, Shack Hartmann sensors have significant drawbacks that limit their effectiveness to a somewhat narrow band of applications.

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