Photonics Dictionary® Plus
Definitions of photonics technology terms, abbreviations and acronyms. It is in the form of a wiki, so the content can be edited and expanded by members of the photonics community – including you!
Also known as divergent lens, negative lens, concave lens or dispersive lens. A lens that causes parallel light rays to spread out – hence diverge – away from the optical axis once exiting the lens. The lens surfaces may be plano-concave, double concave or concave-convex. The edge of a diverging lens is always thicker than the center. Parallel light rays entering a diverging lens tend to form virtual images of the object that light ray is originating from.
A unique collection of technical design and applications articles, as well as articles presenting the basics of photonics technology. Topics range from detectors, cameras and imaging
to optical components
and positioning equipment
and much more.
A Guide for Designers
With the large variety of beamsplitters available, the designer needs to take many factors into consideration. This article and its illustrations will go a long way toward making the correct choice less of a risk. All curves show typical performance. Plate beamsplitters
Plate beamsplitters consist of a thin plate of optical crown glass with a different type of coating deposited on each side. The first surface is coated with an all-dielectric film having partial reflection...
Listings of societies, associations, universities and research centers worldwide involved in fostering the education and growth of the photonics industry.
Kings College London