Why Interferometer Measurements Drift: Causes and Fixes
Unstable interferometer readings usually trace to vibration, thermal drift, or source instability. Learn how to diagnose each cause and when to stop a...
Category: How-to GuidesBlog
Product reviews, how-to guides, and industry news from Zygo.
Beam Expander Buying Guide: Aperture, Magnification, and Fit
A practical beam expander buying guide covering aperture, magnification, and fit. Learn how to match a Zygo beam expander to your interferometer mainf...
Category: Buying Guides
Verifire HD vs HDX: Which Interferometer Fits?
Compare Verifire HD and HDX on resolution, speed, and software. Learn which Zygo interferometer matches your shop's needs and budget before you buy.
Category: Comparisons
Step Height Standards: Why 88nm Zygo Certification Matters
A practical FAQ on 88nm step standards and Zygo certification: what the number means, why traceability matters, and how to use a certified step height...
Category: Product Reviews
Why Your Optical Profiler Readings Drift and How to Fix Them
Diagnose optical profiler drift by symptom, cause, and fix. Learn when to adjust, recalibrate, or stop and call service.
Category: Tips & Care
How to Install and Align a Zygo Vibration Isolation Table
A step-by-step guide to installing and aligning a Zygo vibration isolation table, from site prep to interferometer stability checks. Includes common m...
Category: How-to Guides
How to Choose a Transmission Sphere: Aperture, f/#, and Wavefront
A practical guide to transmission sphere selection: match aperture and f/# to the part under test, confirm wavefront quality, and choose the right mou...
Category: Buying Guides
Verifire HDX vs Verifire MST: Which Interferometer Fits?
Compare Verifire HDX and MST on aperture, zoom, and certification. See which Zygo interferometer matches your shop's test needs and budget.
Category: Comparisons