Self-phase modulation (SPM) is a nonlinear optical phenomenon that occurs when an intense laser beam passes through a medium, causing a change in the phase of the light due to its interaction with the material itself. This phenomenon is a result of...

An apochromat, often referred to as an apochromatic lens or apochromatic objective, is a type of optical system designed to...

A means of testing optical fiber for macrobending losses by wrapping the fiber once at very low tension around a mandrel,...

An expression of the tolerance of decentration of a laser diode from the optical axis: the region around the axis in the...

A type of high-speed photographic shutter that uses Faraday rotation to produce exposure times as fast as 1 microsecond. It...

A circular lamp or bundles of optical fibers placed around the perimeter of an objective lens to illuminate the object field...

A ring laser gyroscope (RLG) is a type of gyroscope that uses laser light to detect and measure changes in orientation. It...

A metal coil or coils wrapped around the outside of the neck of a cathode-ray tube. Current passing through the coils...

An InGaAs (indium gallium arsenide) camera is a type of imaging device that utilizes InGaAs sensors to capture images in the...

One of two types of solar time - the other being apparent solar time - the mean solar time is the time measured by the...

A center-opening shutter made up of several identical leaves that are mounted symmetrically around the optical axis of the...

Virtual reality (VR) is a computer-generated simulation of a three-dimensional environment or experience that can be...

Mie scattering, named after the German physicist Gustav Mie, refers to the scattering of electromagnetic radiation (such as...

In local area networking, arrangement of the satellite nodes around a central node through which all routing of network data...

A device for measuring diffraction grating efficiency at any angle of incidence, consisting of a reflectometer wherein the...

Hyperchromic shift refers to an increase in the absorption of light, leading to a higher absorbance, often observed in...

A CubeSat is a type of miniaturized satellite characterized by its standardized size and modular design. CubeSats are...

A fiber optic gyroscope (FOG) is a type of gyroscope that uses the interference of light waves to detect changes in...

A method of resampling in which a 16-pixel neighborhood around a given pixel from the original image is used to calculate...

Deep ultraviolet (DUV or deep-UV) refers to a specific range of ultraviolet light with shorter wavelengths than those in the...

A measuring instrument used for surface profiling and quantifying the roughness of a material. The stylus is placed on the...

An alexandrite laser is a solid-state laser that utilizes a synthetic crystal made from the rare earth element alexandrite...

A reflecting prism that is rhomboidal in shape. It has two parallel transmitting faces, and two parallel reflecting faces;...

An early graphic scheme of colors in which saturated spectral colors are plotted around the circumference of a circle....

A shaft, spindle or any object generally passed through a workpiece to hold, support or shape a particular piece during its...

1. In a cathode-ray tube, the glow surrounding a bright spot that appears on the fluorescent screen as the result of the...

A surveying device used to measure vertical displacement of target centers of scale lines from a horizontal plane generated...

A tool used in cutting circular holes around a center. Also, a laser cutter in which the beam moves in relation to the cut...

In a liquid crystal system, the director refers to the local symmetry axis around which the long range order of the liquid...

The constant outward flow of weakly magnetized plasma from the sun that is deflected by the magnetic field of the earth and,...

Holographic tomography is an advanced imaging technique that combines holography and tomography to provide three-dimensional...

An Er:YAG laser is a type of solid-state laser that uses a crystal made of erbium-doped yttrium aluminum garnet...

Filoviruses are a family of viruses that are responsible for severe and often fatal hemorrhagic fevers in humans and...

An endoscopic surgical instrument that includes a channel for the introduction of supplementary instruments.

A photovoltaic cell, commonly known as a solar cell, is a semiconductor device that directly converts light energy into...

A Risley prism, also known as a Risley prism pair or Risley rotating prism, is an optical device used for controlling the...

A process by which a plastic cell is molded around a glass lens or lenses to create a mount, eliminating the metal barrel...

A Ti:sapphire laser is a type of solid-state laser that utilizes a titanium-doped sapphire crystal as the gain medium. The...

An optical mounting device that permits adjustment around two perpendicular and intersecting axes of rotation.

Azimuthal polarization refers to a specific polarization state of light where the electric field vector of the...

Holmium lasers are a type of medical laser that utilizes holmium-doped crystals as the gain medium. The term holmium laser...

A two-lens arrangement intended to image light into a microscope slide sample. The primary aberrations present are red and...

In a fiber optic cable, the longitudinal length required for the transmission media, wrapped around a central member, to...

A naturally occurring crystalline mineral that has the property of polarizing transmitted light. It is little used now that...

A laser crystal, also known as an active medium or gain medium, is a solid-state material used in the construction of...

A device used in electron microscopes and particle accelerators to focus electron beams by the arrangement of four...

A device having a plane mirror so mounted that it can be set to reflect sunlight into a piece of laboratory equipment. It is...

Diamond turning refers to a precision machining process used to produce complex optical components, particularly lenses and...

Light present in the environment around a detecting or interpreting device, especially a machine vision system, and...

An optical filter so constructed that the density increases progressively from one end to the other, or angularly around a...

A special evacuated camera equipped with means for holding a specimen and bombarding it with a sharply focused beam of...

A polygonal mirror, also known as a multifaceted mirror or facet mirror, is a type of optical component used in various...

An infrared light-emitting diode (IR LED) is a semiconductor device that emits infrared light when an electric current...

A nonluminous area around a negatively charged probe that is inserted into the positive column of an arc or glow discharge.

The maximum variation in thickness of a lens as measured around a diameter centered on the optical axis. The ETD divided by...

Germicidal ultraviolet (GUV) refers to a specific range of UV radiation that has disinfectant properties capable of killing...

An endoscope is a medical device used for visualizing and examining the interior of hollow organs, body cavities, or...

A type of streak camera that uses film wrapped around a drum, which moves at a constant speed to record the changing shape...

The separation of unpolarized light into two plane-polarized elements by a doubly refracting crystal. When a crystal, such...

Long-wave infrared (LWIR) refers to a specific range of the infrared spectrum. Infrared radiation is divided into three main...

A GaAlAs laser is a type of semiconductor laser diode that emits light in the near-infrared region of the electromagnetic...

Recombinase polymerase amplification (RPA) is a molecular biology technique used to rapidly amplify specific DNA or RNA...

A dispersion-shifted fiber (DSF) refers to a type of optical fiber designed to minimize the effects of chromatic dispersion,...

Chromatic aberration is an optical phenomenon that occurs when different wavelengths (colors) of light are refracted by a...

A device used in thin-film deposition; the material to be evaporated is placed in a crucible that is heated inductively by...

Low Earth orbit (LEO) refers to a region in space that is relatively close to Earth's surface, typically characterized by...

In fiber optics, the glass that is found around the glass core of the fiber, and that has a lower refractive index than the...

A coating made up of particular birefringent materials having polarizing properties. It may be used, in some cases, to...

The polymerase chain reaction (PCR) is a widely used molecular biology technique used to amplify a specific segment of DNA...