|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
|
Photonics
PHOTONICS By the 21st century, photonics was on the cusp of unseating electronics as the optimal and revolutionary science underlying cutting-edge telecommunications and computing technology. The primary thrust of photonics research in the 1990s and early 2000s was toward the fiber-optic networking... Read more |
|
|
photon
photon , the particle composing light and other forms of electromagnetic radiation , sometimes called light quantum. The photon has no charge and no mass. About the beginning of the 20th cent., the classical theory that light is emitted and absorbed by matter in a continuous stream came under... Read more |
|
fluence
fluence A measure, widely used in studies of photosynthesis in plants, of the quantity of light. It is defined as the quantity of radiant energy falling on a small sphere divided by the cross-sectional area of the sphere, and can be expresssed in two ways. Photon fluence (units:... Read more |
|
|
Compton effect
Compton effect [for A. H. Compton ], increase in the wavelengths of X rays and gamma rays when they collide with and are scattered from loosely bound electrons in matter. This effect provides strong verification of the quantum theory since the theoretical explanation of the effect requires that... Read more |
|
amount of substance
amount of substance Symbol n. A measure of the number of entities present in a substance. The specified entity may be an atom, molecule, ion, electron, photon, etc., or any specified group of such entities. The amount of substance of an element, for example, is proportional to the number of atoms... Read more |
|
antiparticle
antiparticle elementary particle corresponding to an ordinary particle such as the proton , neutron , or electron , but having the opposite electrical charge and magnetic moment. Every elementary particle has a corresponding antiparticle; the antiparticle of an antiparticle is the original... Read more |
|
Monochromatic light
Monochromatic Light Technologies using monochromatic light have a wide range of application, from astrophysics and astronomy to forensic science . The term monochromatic derives from the Greek words monos, meaning one or sole, and chromos, meaning color. Monochromatic light, or one-color light, is... Read more |
|
laser
laser [acronym for l ight a mplification by s timulated e mission of r adiation], device for the creation, amplification, and transmission of a narrow, intense beam of coherent light . The laser is sometimes referred to as an optical maser . Coherent Light and Its Emission in Lasers The... Read more |
|
Quantum statistics
Bose-Einstein statistics class of statistics that applies to elementary particles called bosons, which include the photon , pion , and the W and Z particles . Bosons have integral values of the quantum mechanical property called spin and are "gregarious" in the sense that an unlimited number... Read more |
|
Antimatter
antiparticle elementary particle corresponding to an ordinary particle such as the proton , neutron , or electron , but having the opposite electrical charge and magnetic moment. Every elementary particle has a corresponding antiparticle; the antiparticle of an antiparticle is the original... Read more |
|
|
NETWORK PHOTONICS HITS FUNDING JACKPOT COMPANY DEVELOPING SWITCHING...
...made a big splash Monday...Network Photonics is developing...Network Photonics' technology...technology. The venture capital round signals a...for Network Photonics, which was...research ... |
|
|
Upbeat Intense secures new round of funding; Opto-electronics firm insists it...
...electronics firm which makes...complete a new multi-million...pound funding round by the end...formerly Intense Photonics before its...Terrahertz Photonics and Essient...continue to hit targets...one of the ... |
|
|
Capital gets choosy.(D)(Business Times)(Cover Story)
...ago venture capital seemed almost...at venture firm Grotech Investment...than ever, venture capitalists...Atlantic, a venture firm based...BIOTECH WINS BIG The biggest ... |