Welcome to, a collection of helpful resources for students, educators and researchers involved with photonics - the technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon.

DICTIONARY+ > Photonics Dictionary® Plus Definitions of terms, abbreviations and acronyms related to photonics technology. This reference is in the form of a wiki, meaning the content can be edited and expanded by members of the photonics community.
silver halide emulsion
An emulsion in which grains of the photosensitive material silver halide are deposited. Each grain, when exposed to light, either develops or fails to develop as a unit, leaving a dark or clear region on the developed negative. The size of the grains relates to the sensitivity of the emulsion and the resolution of the image.

HANDBOOK > Photonics Handbook® A unique collection of technical design and applications articles, as well as technology primers presenting the basics of the photonics technology.
Glossary, Equations, Parameters
The following is a list of terms commonly used to describe the spectral characteristics of filters. Attentuation Region (or Blocking) The spectral region over which very low transmission is required. Attenuation requirements are generally specified in percent transmission over a given spectral interval. Example: Attenuation for a narrow bandpass filter centered at 2.0 μm may be specified as absolute transmission to be less than or equal to 0.1 percent, from 0.4 to 1.9 μm and from 2.1 to...

INSTITUTIONS > Educational Institutions Listings of societies, associations, universities and research centers worldwide involved in fostering the education and growth of the photonics industry.
University of Aachen
Color and electronic imaging; and color management systems.

Light Matters Weekly Newscast
Learn more about the industry by watching Light Matters, a weekly video newscast on Photonics Media editors deliver research news, industry highlights, tradeshow coverage and more.

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