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Edmund Optics - Manufacturing Services 8/24 MR

Opto Diode Corp. - PbS &PbSe Detectors 10-24 HP

8,726 terms

Photonics Dictionary

enantiomer

Enantiomers are a pair of molecules that are non-superimposable mirror images of each other, similar to left and right hands. They are stereoisomers, meaning they have the same molecular formula and...

enclosed arc lamp

An arc lamp whose carbon electrodes are enclosed in a transparent chamber, resulting in an arc that is steadier, lasts longer and emits more ultraviolet radiation.

enclosed laser device

A laser or laser system positioned within an enclosure to prevent dangerous optical radiation from leaving the enclosure.

encoder -> optical encoder

A device designed to measure linear or rotary motion by detection of the movement of markings on a transparent medium past a fixed point of light. The encoder has a moving code plate, a glass disc...

end-fire coupling

End-fire coupling refers to a method of coupling energy into or out of a waveguide, transmission line, or antenna, where the electromagnetic waves are directed primarily along the axis or direction...

endoscope

An endoscope is a medical device used for visualizing and examining the interior of hollow organs, body cavities, or confined spaces within the body. It consists of a flexible or rigid tube equipped...

endoscopic photography

The photographing of objects within generally inaccessible areas using endoscopes with camera attachments.

energy density

The energy in a medium per unit volume.

energy-sharing laser

A laser that distributes its output power among two, three or four optical fibers simultaneously.

ENG

electronic news gathering

engram

A hologram produced by a pair of radiation beams, each carrying information.

enhanced Faraday effect

The occurrence of very large rotations in transparent materials at weak magnetic fields as predicted in the classical dispersion theory. This effect was discovered by Mavaluso and Corbino in 1898 in...

enhanced graphic adaptor

An image processing device that displays pseudocolor images by assigning colors to the gray scales according to look-up tables defined by the user.

enhanced picture archiving and communication system display

Enhanced picture archiving and communication system (PACS) display (ePAD) is a software tool used in medical imaging to view, manipulate, and analyze radiological images, such as x-rays, CT scans,...

enhanced pulsing

A type of laser pulsing with high laser power at the beginning of the pulse.

enhanced spectral line

The line from a spark or other very hot source that has greater intensity than that of a line produced by an arc or flame source. Also called an enhanced line.

ENI

equivalent noise input

entrainment

The movement of particulate material by flowing gas or liquid.

entrance pupil

In a lens or other optical system, the image of the aperture stop as seen from object space.

entrance slit

The entrance slit, also known simply as the slit, is an essential component in optical instruments such as spectrometers and monochromators. It is a narrow opening or aperture through which light...

envelope delay distortion

Distortion caused by variations in the rate of change of phase shift with frequency over the signal's necessary bandwidth.

envelope

Also referred to as a bulb. The glass housing that encloses an incandescent source, or the glass or metal housing that encloses an electron tube.

environmental chamber

A test chamber designed to expose the subject being tested to external conditions, such as heat, shock, pressure and moisture, for the study of their effects.

environmental parameters

Potential hazards to a system's application and installation, including temperature variations, chemical reactivity, mechanical stress and moisture.

environmental range

The maximum to minimum range of temperature, pressure, humidity, vibration and biological conditions under which an optical component or system can function and be stored. The range required depends...

enzyme-linked immunosorbent assay

An enzyme-linked immunosorbent assay (ELISA) is a laboratory technique used to detect and measure the presence of specific substances, such as antibodies, antigens, proteins, hormones, or other...

EOID

electro-optic identification

EOIS

electro-optic imaging system

EOLM

electro-optic light modulator

EOPC

electro-optic phase change

EOPP

Earth orbiting polar platform

EOS

Earth observation satellite; electro-optic system; European Optical Society

EOSPC

electro-optic signal processing computer

EPA

European Photonics Association; Environmental Protection Agency

EPB

equivalent passband

ephemeris

A tabulation of predicted positions that have been calculated for one or more celestial bodies or orbiting satellites.

ephemeris time

Uniform measure of time based on dynamics law and calculated according to planetary orbital paths; specifically, Earth's orbit about the sun.

epidiascope

A device for projecting either opaque matter or transparent slides onto a screen.

epifluorescence microscopy

Fluorescence imaging technique in which the excitation light from the objective is directed into the sample producing emission at all angles. Light emitted into the objective is measured allowing the...

epilayer

The outside or covering layer.

episcope -> opaque projector

An opaque projector is a device used for enlarging and projecting images from opaque objects such as printed pages, photographs, or three-dimensional objects onto a screen or surface. Unlike a...

epitaxial

Epitaxial refers to the growth of a crystalline layer on a crystalline substrate in such a way that the orientation of the crystal lattice of the growing layer is related to that of the substrate. In...

epitaxial deposition

Epitaxial deposition is a process used in semiconductor manufacturing and materials science to grow a thin crystalline layer, known as an epitaxial layer, on a substrate. The term epitaxial refers to...

epitaxial equipment

Epitaxial equipment refers to a set of specialized tools and systems used in the process of epitaxy, which is the growth of crystalline layers on a substrate material. Epitaxial growth is a critical...

epitaxy

A well controlled thin films technique for growing films with good crystal structure in ultra high vacuum environments at very low deposition rates. Epitaxy methods are well known for the growing of...

epoxy

Common name for a variety of adhesives used for lens bonding, fiber optic splicing and other photonics applications. The term is actually a prefix denoting the presence of an epoxide group in a...

EPR

electron parameter resonance

EPROM

erasable programmable read-only memory

EPS

European Physical Society

equation

Photonics Dictionary

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