VeriFire™ AT+
Coherent Artifact Suppression

The VeriFire™ AT+ provides the highest level of commercial performance available in a phase-shifting interferometer. Combining unique illumination, revolutionary data acquisition, and a finely tuned electro-optical imaging system, the VeriFire™ provides you with the technical leadership you expect from ZYGO.

The patented Ring of Fire™ illumination system is the basis of the VeriFire's clean interferometer image. Standard interferometers use a coherent point source to make interference easy to produce in the optical test cavity. However, a point source also creates spurious interference ("bullseyes") at every particle of dust that finds its way into the interferometer optical path over time.

The unique VeriFire™ Ring of Fire illumination is a partial coherence illuminator that localizes the interference to the optical cavity. Therefore, artifacts formed by dust outside the interferometric cavity are suppressed, enhancing the VeriFire's performance.

Point Source

Coherent artifact suppression using a point source, and the Ring of Fire, in the VeriFire™ AT+ interferometer. Dust was applied to the VeriFire™ optics to dramatize the Ring of Fire's superior performance.

Ring of Fire™

Lithography lenses, space optics, and complex commercial optical systems continue to press the requirement for higher performance measurement technology to quantify new parameters to tighter tolerances. Enjoy unmatched measurement repeatability and accuracy with the Ring of Fire coherent artifact suppression system, where "bullseyes" are effectively suppressed, no longer mistaken for striae or high-frequency tooling marks. The VeriFire™ outperforms today's standard interferometers and will meet your most demanding requirements.

VeriFire™, MetroPro® software, and ZYGO's large range of setup possibilities and accessories provide enhanced flexibility and ease of use over previous generation interferometers.

Brochure, Selection Guide, and Spec Sheet

To download a brochure, spec sheet, or the Transmission Sphere Selection Guide for the VeriFire™ line of interferometers (in PDF format), click on the appropriate links below.

PDF	VeriFire™ Family Brochure   NEW !
PDF	VeriFire™ AT+ Spec Sheet (221 k)
PDF	Transmission Sphere Selection Guide (304 k)
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ZYGO's Guide to Typical Interferometer Setups

This 16-page booklet illustrates and discusses a number of the most common measurement setups for use with a ZYGO interferometer system. Download it now, or fill out a simple form to request your free copy of this informative guide!