The Shack-Hartmann Wavefront Sensor
Roland Shack invented the device now known as the Shack-Hartmann wavefront sensor in the early 1970s. This sensor, which has in recent years been commercialized, measures the phase distribution over the cross-section of a given beam of light without relying on optical interference and, therefore, does not require a reference beam.
Become a member of OSA or log in to view the full text of this article.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.