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8,726 terms

Photonics Dictionary

mrad

milliradian

Mrad

megarad

MRC

minimum resolvable contrast

MRF

magnetorheological finishing

MRI

magnetic resonance imaging

MRS

Materials Research Society

MRT

minimum resolvable temperature

millisecond

MSCP

mass storage control protocol

MSF

matched spatial filter

MSI

medium-scale integration

MSLM

microchannel spatial light modulator

MSM photodiode

A metal-semiconductor-metal (MSM) photodiode is a type of photodetector that consists of metal electrodes on a semiconductor material. Unlike the more common PIN photodiodes, which have a P-type and...

MSO

multiple system operator

MSS

multispectral scanner

MTB

main time base

MTBF

mean time between failures

MTBH

mass-transport buried heterostructure

MTE

modulated transmission ellipsometry

MTF

modulation transfer function; median time to failure

MTF curve -> modulation transfer function

Also called sine wave response and contrast transfer function. The modulation transfer function is the ratio of the modulation in the image to the modulation in the object as a function of frequency...

MTF optimization

Computerized lens design algorithm that permits the lens MTF characteristic to be included and controlled during the optimization process. MTF optimizations typically allow lens design users to...

MTI

moving target indication

MTOS

metal thick oxide silicon

MTTF

mean time to failure

MTTR

mean time to repair

multi-axis alignment

Multi-axis alignment refers to the process of aligning or adjusting components or systems in multiple spatial dimensions or axes. In various technical and engineering contexts, achieving precise...

multi-image phasor analysis

Multi-image phasor analysis is a computational method used in fluorescence microscopy for analyzing complex datasets consisting of multiple images or time-series of images. This technique extends the...

multianode microchannel array detector

A photon-counting instrument for use in both space-borne and ground-based photometric and spectroscopic instrumentation. This style of detector is composed of opaque photocathodes for photon to...

multiband camera

A group of four cameras loaded with different combinations of filters and film (one is usually an infrared color film) to permit the recording of the same subject in four separate regions of the...

multichannel direct-reading spectrometer

An instrument that contains a spectrograph with a grating in which an array of slits, in place of a photographic plate, is arranged according to the lines of the sample to create an illustration of...

multichannel spectral analyzer

A spectrometric instrument that detects radiation simultaneously in multiple channels, sorts it spectrally from the deep ultraviolet to the infrared, digitizes the information and stores it for...

multicolor hologram

A hologram formed by reconstruction of multicolor wavefronts. The system used to produce the hologram is designed to combine the different colored wavefronts of the separate illuminating sources, and...

multiconfiguration mode

Used in computer design for optical systems with common parts and different applications.

multifiber cable

Fiber optic cable bearing many fibers independently sheathed and capable of carrying unrelated signals. They often surround a central strength member, and can be either loose- or tight-buffered. One...

multifiber joint

A fiber optic connector or splice that mates two multifiber cables, optically aligning all of the individual fibers simultaneously.

multifibers

An array of optically distinct fibers that are fused into one strand. They are used to keep the resolution efficiency of the smaller, single fibers and eliminate difficulty in handling. Their...

multifocal lens

A lens with internally adjustable elements to produce a range of focal lengths. Unlike a true zoom lens, a multifocal lens must be refocused each time the focal length is changed. See variable-focus...

multihaul transceiver

A multihaul transceiver is an optical transceiver module designed to support multiple network architectures or transmission technologies within a single compact device. It offers versatility and...

multijunction device

A photovoltaic device that consists of multiple p-n junctions to produce a greater efficiency when in use than that of traditional single junction devices. A multijunction device is unique because...

multilayer coating

A coating made up of many layers of material having alternating high and low refractive index. In this way, it is possible to produce coatings with a great variety of properties. These may be...

multileg lightguide

A fiber optic bundle split along its length with the ends of the fibers extending separately to illuminate different points with a single light source.

multiline

Describing a laser that emits simultaneously at more than one wavelength.

multiline laser system

A multiline laser system refers to a type of laser that is capable of emitting multiple discrete wavelengths or spectral lines simultaneously. Unlike single-line lasers, which produce radiation at a...

multimeter -> optical multimeter

An instrument that measures several optical parameters, such as optical power and wavelength, with a single measurement input.

multimodal vision-language models

Multimodal vision-language models (MVLMs) are advanced AI systems designed to understand and process information that combines both visual and textual data. These models are capable of interpreting...

multimodality imaging

A technique that combines two or more imaging processes in order to minimize the disadvantages within each of the contributing processes. In medical applications, combining multiple modalities...

multimode distortion

In an optical waveguide,- typically a multimode fiber - the distortion resulting from differential mode delay, i.e. axial rays (modes), with the shortest path length, will have the shortest...

multimode fiber -> multimode optical waveguide

An optical waveguide that will allow more than one bound mode to propagate.

multimode group delay -> differential mode delay

Differential mode delay (DMD) is a parameter used to characterize the propagation characteristics of optical fibers, particularly in multimode fiber optic systems. It refers to the difference in...

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Photonics Dictionary

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