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interferometry Features
New Technology Quantifies Optics’ Elusive Mid-Spatial Frequencies
New polishing technologies caused a significant shift in optical manufacturing during the start of the 21st century. Computer numerical control (CNC) and deterministic optical polishing/figuring techniques have taken center stage to transform how optics are produced. These advancements have enabled CNC machinists to craft aspherical and free-form optical surfaces, tasks that were impossible or demanded highly skilled artisans using traditional pitch polishing methods. However, this progress
Photonics Spectra, December 2023
Berthold Leibinger Awards Honor Laser Research at the Limits
In 2000, Berthold Leibinger, the man who brought laser technology into Germany’s TRUMPF Group, established the Innovation Award — expressed in native German as the “Innovationspreis” — to honor outstanding R&D in...
Photonics Spectra, October 2023
Digital Holographic Microscopy Enhances Cytometry and Histology
In recent years, quantitative phase imaging (QPI) has been continuously improved for purposes of high-resolution, label-free quantitative microscopy. Label-free imaging has received increased attention in the last decade as a minimally invasive way...
Photonics.com, December 2019
Measuring Optics with Spectrally Controlled Interferometry
Measuring flat and prismatic optics with a traditional laser interferometer is difficult to impossible. Optical engineers, scientists, and technicians struggle to obtain accurate measurements on optics with two or more flat and parallel optical...
Photonics Spectra, February 2019
White Light Interferometry for Highly Accurate Thickness Measurements
White light interferometry (WLI) is a common system of measurement with a long history and a variety of applications, which currently include surface profiling1, medical imaging, and — as in the past — thickness measurement. Also known as coherence...
Photonics Spectra, September 2018
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March 2024
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