A double-sided optical metrology procedure for full thin plane parallel optics, such as glass wafers
Parallel optics can be challenging to characterize with classical fizeau interferometers. As a matter of fact, when both rear and […]
Optical Metrology
Optical Alignment of an Adaptive Optics System Using a HASO Wavefront Sensor
Written by Christoph Baranec – University of Hawaii We at the University of Hawaii are in the process of building
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Brief History of Shack-Hartmann Wavefront Sensing
Examining how light is transmitted through lenses and reflected by surfaces can reveal defects. This guide will explain how important wavefront sensing is.
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Optical alignment using the radius of curvature measurement from HASO4 sensor
Optical alignment using the radius of curvature measurement from HASO4 sensor Why do we use the radius of curvature for
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5 Reasons To Utilize Shack-Hartmann Wavefront Sensors
Aberrations cause distortions in optical instrumentation, lasers, and imaging systems. Here are 5 reasons to utilize Shack-Hartmann wavefront sensors.
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MTF measurement using a Shack-Hartmann wavefront sensor
MTF measurement using a Shack-Hartmann wavefront sensor What is MTF? The Modulation Transfer Function or MTF measurement is a crucial metrology technique to evaluate
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