A holographic grating is a type of diffraction grating that is produced using holographic recording techniques. It consists of a periodic structure of alternating transparent and opaque regions, which diffracts incident light into specific...

A length that denotes the size of the unit cell in a crystal lattice. With respect to the cubic crystal, this is the length...

A point cloud is a set of data points in a three-dimensional coordinate system, where each point represents a specific...

Metasurfaces are two-dimensional arrays of subwavelength-scale artificial structures, often referred to as meta-atoms or...

Scattering (other than material scattering) that is attributable to variations of geometry and index profile of the...

Multiple scattering method used in biological analysis in which approximations yield simple, explicit solutions, at least...

Surface-enhanced Raman scattering (SERS) is a powerful analytical technique that enhances the Raman scattering signal of...

The determination of the degree to which a manufactured component can deviate from its ideal specifications of material and...

Selective laser melting (SLM) is an additive manufacturing (AM) or 3D printing technology that belongs to the powder bed...

Whispering gallery mode (WGM) refers to a phenomenon in wave physics, particularly in optics, where waves, such as light or...

Off-axis paraboloid and ellipsoid mirrors are specialized optical components used in various optical systems, particularly...

Concave is an adjective used to describe a surface or shape that curves inward or has a hollow or recessed appearance. In...

Metamerism that occurs when the geometry of illumination or viewing is changed.

Photogrammetry is a technique used to obtain accurate three-dimensional measurements of objects and environments through the...

In the context of thin film deposition processes such as evaporation or sputtering, masks are used to selectively deposit...

In image processing, mathematical operations that change spatial geometry, as for instance scaling, translating, rotating or...

In the context of optics and lasers, a transverse mode refers to a specific spatial pattern of the electric field within the...

Unified notation for specification of reflectance in terms of both incident- and reflected-beam geometry; i.e., the ratio of...

A photonic cavity, also known as an optical cavity, is a structure that confines electromagnetic radiation within a certain...

An optical assembly refers to a collection of optical components that are carefully arranged and aligned to perform a...

Convex is an adjective used to describe a surface or shape that curves outward, bulges, or has a rounded and outwardly...

Topology is a branch of mathematics that focuses on the properties of space that are preserved under continuous...

Biometrics refers to the automated recognition of individuals based on their physiological or behavioral characteristics....

A sputtering target is a solid material used in the process of physical vapor deposition (PVD), specifically sputtering....

A micro-ring resonator is a compact optical device that utilizes the resonant behavior of light within a small ring-shaped...

Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free...

A design for bent crystal monochromators in which spacing is constant along any circular arc terminating at the two foci and...

Retroreflection is a phenomenon in optics where light is reflected back toward its source, typically in a direction nearly...

A casting consisting of an optical material molded into the desired geometry for grinding, polishing or, in the case of...

Solid-state laser geometry in which the standard rod is replaced by a slab of laser material. Often called...

A molecular motor refers to a nano-sized device composed of organic molecules or other small-scale components that can...

A device in which slab geometry internally compensates for thermal-optic distortion; the solid host material -- glass or...

The entrance slit, also known simply as the slit, is an essential component in optical instruments such as spectrometers and...

An optical grating, in the context of optics and physics, refers to a device with a periodic structure of closely spaced,...

The term photochemical pertains to chemical processes or reactions that are initiated or influenced by the absorption of...