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11 articles
Photonics Handbook
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Aspheric Lenses: Optimizing the Design
Jeremy Govier, Edmund Optics Inc.
With the understanding of aspheric lens manufacturing provided in part one of this article, designers have the tools to optimize their aspheres; the next step is to understand how to specify and...
Understanding Surface Quality: A Practical Guide
John C. Smith, Rocky Mountain Instrument Co. (RMI)
Surface quality has become one of the most poorly understood specifications in the optics industry. A significant portion of the confusion stems from the two major competing (and largely...
Lasers for Microscopy: Major Trends
MARCO ARRIGONI, NIGEL GALLAHER, DARRYL MCCOY, VOLKER PFEUFER, MATTHIAS SCHULZE, AND DANIEL CALLEN, COHERENT INC.
Laser development for the microscopy market continues to be driven by key trends in applications, which currently include superresolution techniques, multiphoton applications in optogenetics and...
Excimer Optics: High Power Demands High Reliability
Michael A. Case, Teledyne Princeton Instruments, Business Unit of Teledyne Technologies
The first high-reflectance mirror coatings for the UV and vacuum UV (VUV) were of the Al + MgF2 type produced in the late 1950s. Coatings of this design are still used today for multigas cavity...
Thin-Film Coatings: A Buyers' Guide
Trey Turner and Roger Kirschner, Research Electro-Optics Inc. (REO)
What are thin-film coatings? The purpose of any optical thin-film coating is to modify the transmittance and reflectance properties of the substrate material to which they are applied. Most coatings...
Laser Beam Measurement: Slit-Based Profilers for Pulsed Beams
Allen M. Cary, Photon Inc.
Measuring pulsed-beam lasers has generally required the use of a CCD array profiler. This is a reasonable solution for low-power lasers in the UV and visible wavelength range, but these require...
Optical Coating: Materials and Deposition Technology
CERAC, Inc., a subsidiary of Williams Advanced Materials; technical assistance from Pellicori Optical Consulting
Optical coatings are deposited as thin-film multilayers of a variety of materials using specific deposition techniques. Coatings are applied to optical components that are intended for use at...
Data Tables: Optical Thin-Film Materials
DATA TABLES: OPTICAL THIN-FILM MATERIALS Identification Physical Parameters Material Name Material Formula Transparent Region(µm) (see note a) Index at Wavelength...
Cleaning Optics: Choosing the Best Method
CVI Laser Optics
Optics can be contaminated in many ways. Contamination can be kept to a minimum by returning the optics to their case after use or by covering the optics for protection from the outside environment....
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...
Beam Diagnostics: Meeting the Need for High Quality
Coherent, Inc.
For any discussion of laser beam diagnostics, it is first necessary to define some terms that characterize beam properties. Broad definitions can include measurements of laser energy or power,...
Photonics Handbook
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