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10 articles
Photonics Handbook
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Nanopositioning: A Step Ahead
Scott Jordan, Brian Lula, and Stefan Vorndran, PI (Physik Instrumente) LP
By its original definition, a nanopositioning device is a mechanism capable of repeatedly delivering motion in increments as small as one nanometer. Lately demands from industry and research have...
Detectors: Guideposts on the Road to Selection
Earl Hergert, Hamamatsu Corporation
Any number of medical, industrial, and analytical applications requires the detection of light. Chemiluminescence, bioluminescence, fluorescence, and atomic absorption are just a few, and all require...
Lasers: Understanding the Basics
Coherent Inc.
Over 60 years have passed since the first demonstration of a laser in 1960. After the initial spark of interest, lasers were for a while categorized as “a solution waiting for a problem,”...
Excimer Lasers: Photonic Stamps with Micron Resolution
Coherent, Inc.
Excimers are pulsed gas lasers that deliver high output power and pulse energies in the ultraviolet and deep-ultraviolet wavelengths. This enables them to power applications that cannot be supported...
Photometry: The Answer to How Light Is Perceived
Photo Research, Inc.
That portion of the spectrum that the eye can see — and its rainbow of colors — is rather small, covering approximately 360 to 830 nm. What colors we perceive depends on wavelength, while...
Ultraviolet Reflectance Imaging: Applications
Dr. Austin Richards, Oculus Photonics
Reflected-ultraviolet imaging is a rather mysterious area of the imaging field. There is relatively little actual UV imagery to be found on the Internet or in the literature compared to near-infrared...
Quantifying Light: Intensity, Uniformity Hold the Key
Steven Giamundo, Fiberoptics Technology, Inc.
Intensity and uniformity can be described using different physical attributes, which makes interpreting requirements somewhat confusing. This article intends to provide an explanation and serve as a...
Laser Diodes: Specification Guidelines
Intense Ltd.
While some design engineers know exactly what they need from their laser diode, others may choose a partner to navigate what can be a complex development process. Laser diode manufacturers know which...
Spectroscopy: The Tools of the Trade
Dr. John R. Gilchrist, Clyde HSI
All optical spectrometry techniques rely on the measurement of radiant power. The configuration of the instrument varies based on the measurement technique: absorption, emission, luminescence, or...
CO
2
Lasers: The Industrial Workhorse
Thorsten Frauenpreiss, Rofin-Sinar Laser GmbH
In the three decades since its introduction, the CO2 laser has become the workhorse of industrial lasers. Today it is available in a range of designs and sizes with output powers of 20 kW and more....
Photonics Handbook
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