In holography, the wave of light that illuminates the object to be recorded, which diffracts it to the recording medium, where it interferes with the reference beam, generating the hologram.

A helium-neon (HeNe) laser is a type of gas laser that emits visible red light at a wavelength of 632.8 nm. It operates...

A liquid crystal light valve (LCLV), also known as a spatial light modulator (SLM), is an optical device that modulates the...

A technique used to store wavefront information on thin polarization information-recordable materials by controlling the...

The acoustical holographic process in which the hologram consists of slight elevations in a liquid surface, in the areas of...

A technique proposed for studying the atomic structure of crystals by measuring the interference pattern generated when the...

A photorefractive material used in image processing, holography and optical switching.

The storage of information via optical means, primarily employing a low-power laser to inscribe data on a photosensitive...

Lensless microscopy, also known as computational or holographic microscopy, is an imaging technique that captures and...

A lithography method that allows the transfer of fine-pitch gratings from a phase mask into photoresist. The exposure takes...

A phase screen, in the context of optics and wave optics, refers to a surface or medium that introduces a phase delay to an...

The production of holograms initially from either conventional photographs or incoherent optical equipment.

Optical elements that use diffraction to control wavefronts. Diffractive optical elements include diffraction gratings,...

Holographic recording whereby the object is illuminated by two pulses, separated by a time interval, from a Q-switched laser...

A spatial light modulator (SLM) is an optical device that modulates or manipulates the amplitude, phase, or polarization of...

In optics and photonics, "phase" refers to a property of electromagnetic waves, such as light, that describes the position...

Although low in sensitivity (approximately 10-7 m for helium-neon lasers), this holographic technique permits quantitative...

Quantitative phase imaging (QPI) is an advanced imaging technique used in microscopy to measure and analyze the optical...

A holographic grating is a type of diffraction grating that is produced using holographic recording techniques. It consists...

A technique used in holography that involves the mixing of lasers of different wavelengths to produce a beam of shorter...

Separation of incident laser pulses by several seconds so holographic plates can be changed and sandwiched between the...

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

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

In optics and photolithography, a phase mask refers to a device that modifies the phase of light waves passing through it....

The holographic recording of the pattern formed by two sets of coherent microwaves that interfere at a scanning plane. A...

The formation of an interferogram by means of two holograms on the same recording medium, often used for determining small...

A technology that uses electrically activated holograms stored within specially developed crystals to route information in...

A holographic camera, also known as a holographic imaging system or holographic recorder, is a specialized device used to...

Digital holographic microscopy (DHM) is an advanced imaging technique that combines holography and digital image processing...

A method for detecting vibration amplitudes analogous to image holography, except that the film emulsion is replaced by a...

In holography, the beam of light that is directed from the beamsplitter to the recording medium, where it interferes with...

The formation of a hologram by single reference-beam interferences with waves that are diffracted or scattered from a small...

The simultaneous exposure of two holographic plates with emulsions facing the object. After deformation, a second pair of...

The recording of three or more separate holograms having a different color on a medium, so that illumination with a tricolor...

Short-distance scattering of light in holography caused by random index inhomogeneities and the developing index that...

A hologram in which the image of an object, or the object itself, is located near the hologram recording plane, for optimum...

The optical reconstruction of image information contained in a sound field. First the diffraction pattern, formed by an...

Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and...

The holographic recording of sequences of high-speed phenomena. With a multiple beam laser, multiple holograms that depict...