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Photonics Handbook
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Selecting a Photodetector: Using WITS$ as a Rough Guide
Earl Hergert and Slawomir Piatek, Hamamatsu Corporation
Light is a versatile tool for investigating physical and chemical processes in nature. Any specific system being analyzed may, through the light it emits or reflects, communicate information about...
Optical Materials: Double-Sided Lapping and Polishing
Michael Naselaris, Sydor Optics Inc.
Double-sided processing is a batch-type process that uses planetary action — generally with loose, abrasive particles suspended in a liquid vehicle — to abrade material almost equally...
Image Intensification: The Technology of Night Vision
Harry P. Montoro, ITT Night Vision
Image intensification, the basis of night vision, is a complex conversion of energy particles that occurs within a vacuum tube. An image-intensifier system works by collecting photons through an...
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...
Heat Control and Lighting Systems Design: Optical Coatings Separate Light from Heat
Eric Krisl, Deposition Sciences Inc.
Controlling and minimizing heat output is desirable in most lighting applications. For example, conventional incandescent light sources are very inefficient with only a small portion of the...
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...
Image Processing: Turning Digital Data into Useful Information
William Silver, Cognex Corp.
Images are produced by many means: cameras, x-ray machines, electron microscopes, radar and ultrasound. They are used in the entertainment, medical, scientific and business industries; for security...
Connectors and Splices: Correct Alignment Spells Success
Paula Trindell, Tyco Electronics
Just as an electronic connector provides a pluggable connection between electronic circuits, a fiber optic connector provides an optical one. The goal is joining a fiber to a transmitter, receiver or...
Optical Components: Finding Your Way Through the Maze
CVI Melles Griot
Lenses come in a variety of shapes, sizes and materials. They can be made of a single piece of glass or have multiple elements; their surfaces can be spherical, aspheric or cylindrical; they can be...
Photonics Handbook
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