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Zurich Instruments AG - Challenge Us 10/24 MR

Hamamatsu Corp. - Mid-Infrared LED 11/24 HP

8,726 terms

Photonics Dictionary

SLT

satellite laser tracking

slurry

The name of the mixture of liquid and grinding or polishing compounds used in processing optical materials.

single mode

SMA connector

The fiber optic connector developed and manufactured by Amphenol Fiber Optic Products.

small-angle x-ray scattering

The investigation of microstructures by an instrument that generates a narrow, highly collimated beam of x-rays.

smart bomb

A bomb guided to its target by some form of electro-optical system.

smart cities

Smart cities are urban environments that use information and communication technologies (ICT) and data-driven solutions to optimize city operations and services across various domains such as...

smart microscopy

Smart microscopy refers to the integration of advanced technologies, such as artificial intelligence (AI), automation, and machine learning, into conventional microscopy techniques to enhance imaging...

smart pixel array

An array of active optical devices (modulators, laser diodes and/or detectors), each of whose electrical inputs or outputs are directly connected to electronic logic circuits, which also are a part...

smart skin

Structural surfaces that incorporate an embedded sensor network capable of detecting flaws within the structure.

SMBus

system management bus

SMD

surface-mount device

SMDS

switched multimegabit data service

SME

Society of Manufacturing Engineers

smear

A lack of resolution in a television image as a result of smear ghosts or an insufficiently high video-frequency response. The distortion appears to be extended horizontally and blurred.

smear camera -> streak camera

A streak camera is a specialized instrument used to capture and analyze ultrafast phenomena, such as extremely short pulses of light or rapidly changing events. Unlike traditional cameras that...

smear ghost

A false image in television that follows the desired image so closely that it appears to be smeared.

smectic phase

A form of liquid crystal in which flow does not take place in the usual manner. When examined with polarized light, the substance often forms drops that display a series of fine lines. X-ray...

SMILE

spherical microintegrated lens

Smith-Baker microscope

A transmission interference microscope that produces interference patterns of a sample by using birefringent plates that split a polarized beam of light into ordinary and extraordinary rays, then...

SMPTE

Society of Motion Picture and Television Engineers

SMSR

side mode suppression ratio

SMT

surface-mount technology

Snell's law of refraction

The incident ray, the normal to the refracting surface at the point of incidence of the ray at the surface, and the refracted ray all lie in a single plane. The ratio of the sine of the angle between...

Snellen letter

The letter form used on visual performance test charts. The overall letter height is equal to five times the thickness of individual strokes. Normal 20/20 vision is represented by the ability to...

sniperscope

A high-power riflescope specifically intended for sighting and shooting distant targets.

snooperscope

An instrument used for viewing in low levels of illumination by means of infrared radiation. A high-aperture lens forms an image of distant objects on the photocathode of an infrared-sensitive image...

SNR

signal-to-noise ratio

SOA

semiconductor optical amplifier

SoC

system on chip

sodium light source

An electric discharge lamp in which the conducting vapor is that of metallic sodium instead of the usual mercury. It emits a strong yellow light of a single wavelength.

soft coating

A term describing an antireflection coating that may be applied to optics that cannot tolerate the high temperatures usually required for normal "hard'' coatings. Such coatings lack durability...

soft mold blocking

Blocking by means of a pitch ring, pitch button or a totally pitched block. Pitch, containing a soft filter, may be used between the optical components to bar lateral movement.

soft radiation

Term applied to radiation composed of particles or photons that will not easily penetrate a material because of their low energy levels.

soft-focus filter

A filter that creates spherical aberration resulting in an image with a soft outline.

soft-focus lens

A lens that exhibits spherical aberration when used at large aperture settings, and that forms an image with a slightly blurred outline.

SOG

silicone on glass

SOHO

solar heliosphere observatory

SOI

silicon on insulator

sol-gel

A gelatinous fluid that can be used as a porous thin-film coating for optical components, including laser beam collimators, or as a protective coating for glass and crystalline materials.

solar absorber

A substance capable of converting solar radiation into thermal energy.

solar array

A group of solar cells that are electrically contacted and physically arranged so that they may be oriented in the direction of the sun simultaneously.

solar battery

A series of solar cells arranged to collect solar radiation and to generate a given amount of electrical energy.

solar black

A material, such as gold black and carbon black, that is used as a solar absorber because of its high absorptance and low reflectivity over the solar spectrum.

solar cell

A device for converting sunlight into electrical energy, consisting of a sandwich of P-type and N-type semiconducting wafers. A photon with sufficient energy striking the cell can dislodge an...

solar constant of radiation

Solar radiation intensity existing in free space at the mean solar distance of the Earth. Commonly expressed in g cal cm-2min-1, the constant is equal to the amount of incident radiation -- in unit...

solar furnace

An optical system that is designed to produce a high temperature in a specified area by the optical direction and concentration of solar radiation on that area. The system usually consists of a...

solar heat storage

The process of transferring collected energy from solar radiation into a heat-absorbing medium (e.g., an insulated tank of water) for use at a later time.

solar laser

A laser pumped by solar radiation focused by mirrors.

solar occultation

Measurement of absorption by the gas of interest in the 2- to 6-µm range as a function of tangent height pressure. The pressure profile may be inferred by using CO2 absorption profile...

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Photonics Dictionary

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