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Edmund Optics - Manufacturing Services 8/24 MR

Meadowlark Optics - Wave Plates 6/24 MR 2024

8,726 terms

Photonics Dictionary

dual inline package

A package for electronic components that is suited for automated assembly into printed circuit boards. The DIP is characterized by two rows of external connecting terminals or pins, which are...

dual laser

A gas laser equipped with Brewster windows and concave mirrors (having unlike reflective properties) at each end of the tube to produce two separate wavelengths at the same time.

dual-axis laser

Dual-axis laser is a laser device or system capable of emitting laser beams along two orthogonal axes (typically X and Y axes) concurrently. This allows for precise control and manipulation of the...

dual-chirped optical parametric amplification

Dual-chirped optical parametric amplification (DC-OPA) is an advanced technique in ultrafast laser technology used to amplify femtosecond laser pulses to extremely high energies while maintaining...

dual-wavelength spectrophotometry

Spectrophotometry in which radiation of two separate wavelengths, usually one in an absorption band and the other not, pass through the specimen. The resulting data allows correction for attenuation...

dual-window cable -> double-window fiber

Optical fiber capable of operating at both a shorter and a longer wavelength.

ductility

A material's ability to undergo plastic deformation, specifically elongation, without fracturing.

ducting

Propagation of electromagnetic waves through the Earth's atmosphere in a path that conforms to the curvature of the Earth due to atmospheric thermal inversion. Regions of the atmosphere act as a...

duplet lens system

An optical system having two sets of components separated by an air space, while successive lenses in each set are cemented together.

duplex

In data communications, the simultaneous operation of a circuit in both directions is known as full duplex; if only one transmitter can send at a time, the system is called half duplex.

dust counter

An instrument that uses a photoelectric system to determine the size and volume of dust particles in a given unit of air.

dust counting microscope

A microscope that has been modified to permit the quantitative analysis of dust samples.

dust extinction

In atmospheric optics, the almost total blocking of light transmission in the atmosphere due to the scattering and absorption of the light by dust particles.

duty cycle

Also duty factor, duty ratio. The product of the pulse duration and the pulse repetition frequency of a wave composed of pulses that occur at regular intervals.

DUV

deep-ultraviolet

DVD

digital videodisc

DVDR

direct-view diagnostic region

DVI

digital video interaction

DVST

direct-view storage tube

DWDM

dense wavelength division multiplexing

dwell time

For a detector, the amount of time alotted for the observation of one location.

DWG

digital waveform generator

dye -> laser dye

Class of organic dyes that emit coherent radiation over a wide spectral range.

dye laser

A laser using a dye solution as its active medium. Its output is a short pulse of broad spectral content and its achievable gain is high. Dye lasers function at room temperature. Synchronous pumping...

dye transfer method

The subtractive imbibing process of transferring color prints on paper whereby the dyes from three separately prepared images are transferred to one sheet of paper to form the color print.

dye-polymer optical disc

A type of erasable data storage device that uses a medium deposited on the disc in two layers, each dyed to absorb a different wavelength of laser light. To record data, the lower layer is heated by...

dyn

dyne

dynamic beam correction

The superimposition of a pilot object on each hologram. The fixed relative position of the scanning and pilot beam during the recording process ensures that sensing and fixing the pilot beam position...

dynamic fatigue

Stress applied to an optical fiber at a constant rate.

dynamic light scattering spectroscopy -> photon correlation spectroscopy

Spectroscopy used to study the concentration, diffusion and Brownian motion of small particles suspended in a fluid by measuring dynamic fluctuations of light that is scattered or fluoresced by the...

dynamic magneto-optical correlator

An optical correlator incorporating a binary phase-only spatial light modulator made from an iron garnet magneto-optic solid crystal and used in target recognition systems.

dynamic spectroscopy

A spectroscopic technique used to display the intensity of an optical pulse as functions of time and frequency simultaneously.

dynamic stare sensor

A type of mosaic detector array that combines features of scanning and staring sensors by using a small rapid scanning motion (see saccadic motion) over a few pixels at a time.

dynamic theory

The theoretical explanation and analysis of the interactions between electron waves and crystals used in studying electron diffraction.

dynamic variation

In electrical equipment, power variations that are temporary (as opposed to the permanent, cumulative effects of drift).

DYNAMO

dynamic magneto-optical correlator

dynode

The auxiliary electrode in a photomultiplier that gives rise to secondary emission and amplification when bombarded by photoelectrons.

electron charge

exa-

e-beam

electron beam

E-bend

In a waveguide, a change in direction of the axis without deviating from the plane of polarization.

E-O

electro-optic

EAF

electron-arc furnace

EALM

electronic address light modulator

EAM

electro-absorption modulator

EAP

electro-absorption avalanche photodiode

EBAM

electron-beam accessed memory

EBC

electron-beam coating

EBCM

extended boundary condition method

EBER

electron-beam electroreflectance

Photonics Dictionary

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