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Homogeneity and TTV Testing Measure optical homogeneity and total thickness variation, quickly and easily.

Verifire MST Interferometer System
The Verifire™ MST Multiple Surface Test laser interferometer system provides high precision measurements of surface form and transmitted wavefront of optical components and lens systems. It is the only commercial interferometer system that can measure multiple surfaces – with a single measurement.

Optical Homogeneity and Total Thickness Variation

An important property of an optical component is the homogeneity of the refractive index of the material from which it is made. Variations in the material's refractive index will affect the wavefront passing through it, thus affecting the performance of the optic in critical applications. Similarly, variations in the thickness of the optic changes the length of the optical path, which affects the wavefront passing through it.

Hassle-Free Measurements

The capability to measure optical homogeneity and total thickness variation (TTV) is a standard feature of the Verifire™ MST system. A simple, two-measurement process is all it takes. The traditional methods, involving the use of oil-on plates or requiring the optic to have a degree of wedge, are no longer necessary.

Measurement calculations are accomplished with sophisticated proprietary software algorithms, developed by ZYGO engineers and implemented in the Mx software package. The algorithms accurately differentiate between all four surfaces in the cavity to provide simultaneous measurements of the optic's front and back surfaces, physical and optical thickness variation, nonlinear homogeneity, and linear homogeneity.

Capable of Much More than Homogeneity and TTV Testing

Explore these important features and capabilities of the Verifire™ MST interferometer system...

Thin Glass
Thin Glass Metrology Learn More
Homogeneity/TTV
Optical Homogeneity Interferometric Testing Learn More
IR Testing
Infrared IR interferometry testing Learn More
Large Aperture
Large Aperture Interferometer Learn More

Inquiry Form
Please use the form below to contact us with any questions you have regarding optical homogeneity and total thickness variation measurement with ZYGO's Verifire MST interferometer system, or interferometry in general.

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