Modification of a system to provide for a linear transfer characteristic from an input to an output device. A circuit for this purpose is built into a television camera to compensate for display tube nonlinearities.

An optical system that is corrected for distortion and spherical aberration and therefore forms the image of a straight line...

Supercontinuum refers to a broad spectrum of light that spans a wide range of wavelengths, typically from the visible to the...

Straight line travel. This denotes the fact that light travels in a straight line when traveling through a medium with a...

A line-scan camera, also known as a line-scan image sensor or linear array camera, is a type of digital camera designed to...

The measured width of the field of view at any distance.

Exhibiting the characteristic of materials that are electrical insulators or in which an electric field can be sustained...

A term for thermoplastic optical materials; that is, those in which the polymer chains remain linear after heating and...

An extremely wide emission spectrum generated by the nonlinear effects created when a high peak power from a short-pulse...

Optical switching refers to the process of controlling the routing or transmission of optical signals within a network using...

Fraction of light counter propagating collinear with the incident source. Processes considering backscattering are Raman,...

Self-phase modulation (SPM) is a nonlinear optical phenomenon that occurs when an intense laser beam passes through a...

A method of predicting the nonlinear optical effects exhibited by different molecules without synthesizing the molecules...

Generally, a rotatable table with scales marked in degrees. The fiducial marking also may be a vernier scale. The same...

High-precision motorized positioning device, often linked to computer control equipment.

A silicon photodiode is a semiconductor device that converts light into an electrical current. It is a type of photodetector...

In a straight line. When applied to a lens, it indicates that images of straight lines formed by the lens are not distorted.

Line scan refers to a method of capturing images or data by scanning a single line at a time, as opposed to capturing the...

A positioning drive that rotates a fraction of a 360° turn when the motor coils are activated, resulting in linear or...

A linear computation or algorithm performed on a selected series in the form of an input signal that produces a new series...

Three-photon microscopy is an advanced imaging technique that belongs to the family of multi-photon microscopy methods. It...

Two-photon polymerization (TPP) is a technique used in additive manufacturing, specifically in the field of 3D printing. It...

Calculates the exponential growth of the least stable spatial frequency in a laser beam, and is the numerical equivalent of...

A technique for determining the nonlinear optical properties of a sample material by moving the sample through a focused...

Mode-locking is a technique used in lasers to produce ultrashort pulses of light with durations on the order of picoseconds,...

A microscope that allows examination of a small crystal and conveniently provides linearly polarized object and reference...

The linear relationship between input and output optical fields for a given optical system or application that allows the...

The effect by which sufficiently small particles will scatter blue light at right angles to the incident beam. This...

Method of disk rotation used for optical disk drives, in which the spindle motor decreases the speed of the disk's rotation...

Second-harmonic generation (SHG) is a nonlinear optical process that occurs when two photons with the same frequency combine...

A general term referring to the situation in which an image is not a true-to-scale reproduction of an object. The term also...

An optical gate typically refers to a device or system that controls the transmission of light, allowing it to pass through...

The coupling of laser or light beams via nonlinear optical techniques such as four-wave mixing to achieve spatial variation...

Ratio between map or photo linear distance and the actual ground dimensions represented.

A reference sphere used to represent all possible states of polarization. All linear polarizations will lie on the equator...

FMCW lidar stands for frequency-modulated continuous wave lidar. It is a type of lidar (light detection and ranging)...

Pushbroom scanning is a technique used in remote sensing and imaging systems, particularly in satellite and aerial sensors,...

The scale for floating hydrometers used to measure the specific gravity of a polishing suspension. The depth of immersion is...

See plane-polarized light; polarization.

Linear optics refers to the study and manipulation of light in a linear and deterministic manner, where the response of...

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

A laser capable of generating light pulses that last only a few femtoseconds. This can be achieved by nonlinear filtering to...

A linear image sensor is a type of solid-state electronic device used to capture and convert light into electrical signals....

A device used to accelerate the electrons in a free-electron laser by channeling microwave energy into waveguide cavity...

An instrument consisting essentially of a tube 160 mm long, with an objective lens at the distant end and an eyepiece at the...

Linear receive optics typically refers to the optical components and systems used in the reception (detection) of linearly...

The smallest linear diameter to which a laser or other beam of radiant energy is capable of being focused, depending on the...

Subsurface linear arrangement of elements of rock that is not mappable; lineation is a one-dimensional characteristic.

A relationship between two variables so that when plotted on a graph they yield a straight line.

High harmonic generation (HHG) refers to a nonlinear optical process in which intense laser light interacts with a gaseous...

Dichroism refers to the property of certain materials to exhibit different colors or absorbance of light depending on the...

The use of a krypton laser system for the measurement of small molecules aligned by an electric field, by analyzing the...

An optical crystal that possesses a strong nonlinear dielectric response function to optical radiation. A material with a...

An atmospheric nonlinear process unique to CO2 laser wavelengths, whereby CO2 absorbs 10.6-µm radiation and the CO2...

A law that uses the square of the cosine between the plane of polarization of a beam of plane-polarized light and the plane...

The transfer of energy lost by radiation to the body, relative to the loss of energy per unit of path traveled.

The power, expressed in prism diopters, that is the linear displacement, in centimeters, produced by the prism one meter...

Q-switched operation, or q-switching, is a technique used in lasers to produce short and intense pulses of light. The term...

A device for which the output electric field is linearly proportional to the input electric field, and no new wavelengths or...

The use of a reflective device, which can be fashioned from a variety of materials including gases, solids, dyes, aerosols,...

A free-electron laser (FEL) is a type of laser that generates coherent, high-intensity electromagnetic radiation by using a...

It is often necessary to estimate the value of what a pixel would be between neighboring pixels. This is accomplished by...

Amplifier in which the input and output pulse heights are directly proportional.

A time-to-amplitude converter (TAC) is an electronic circuit that converts a time interval between two events into an...

The mathematical formula that proves that any linear operator for which the impulse is known can be wholly characterized...

Direct conversion of a photon from one wavelength to a lower energy photon of another wavelength(s) due to inelastic...

1. A device used to trace out an object and build up an image. One of the most common of these types is video scanning. The...

A linear or two-dimensional matrix of individual detector elements, typically used at the focus of an imaging system.

A frequency comb is a precise and regular series of equally spaced spectral lines, or frequencies, that are generated with...

Double-clad fiber (DCF) is a specialized optical fiber that features two concentric cladding layers surrounding a core. The...

Transformation of an image, such as a change in position or scale, that does not alter the linearity of the original image.

A CCD camera, or charge-coupled device camera, is a type of digital camera that utilizes a CCD image sensor to capture and...

A light therapy that utilizes nonionizing light sources, including lasers, LEDs, and broadband light, in the visible and...

1. The SI unit of length equal to 10-6 m. Also called micron. 2. A screw thread device used to make accurate physical linear...

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

The ratio of the size of the image of an object to that of the object. The ratio of the linear size of the image to that of...

A nonlinear label-free imaging technique commonly used during surgical procedures for the visualization of collagen fibers...

A device designed to convert linear change in the light state at input to log data at output.

A nonlinear crystal used to modulate a polarized beam of light by means of the Pockels effect. A Pockels cell is used as a...

Optical materials refer to substances or compounds specifically chosen for their optical properties and used in the...

A method of exciting a laser by coupling it directly to another laser.

A microcomb, short for microresonator frequency comb, is a novel photonic device that generates a precise series of evenly...

A support device in which a column or chamber of air permits the free travel of a mobile part. In optical mounting and...

A type of radiation detector designed to recognize nonlinear optical effects, such as the Raman effect, by means of a...

Photonic crystals are artificial structures or materials designed to manipulate and control the flow of light in a manner...

A device used to accelerate the electrons in a free-electron laser. There are several types, including the induction linear...

Nonlinear optical materials are substances that exhibit optical properties that are not linearly proportional to the...

Piezoresistance is a phenomenon in materials science and physics where the electrical resistance of a material changes in...

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

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

One class of nonlinear space-invariant transformation processes used for processing convolved and multiplied signals.

A system having a photoelectric detector for the measurement of three quantities related by linear combination to...

Multimode straight fiber capable of transporting linearly polarized light with any incident polarization angle, and in which...

A class of optical phenomena that can be viewed only with nearly monochromatic, directional beams of light, such as those...

A transducer is a device or component that converts one form of energy into another. It is commonly used in various fields,...

In image processing, methods of reducing image defects that result from false data. Techniques include sampling, linear...

The scanning of a region in a given sequence of slender, straight parallel strips.

A nonlinear optical process in which the frequency of an optical beam is doubled coherently.

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

Means of amplifying optical waves whereby an intense coherent pump wave is made to interact with a nonlinear optical crystal...

The first nonlinear theory in plasma physics that details the time and space evolution of plasma wave instability from a...

A solid-state video detector consisting of a single row of light-sensitive semiconductor devices, used in linear-array...

A device that functions throughout the continuous radiation of a linearly polarized plane wave, and whose nonreciprocity...

Derivative of the half-tone screen process involving the fabrication of a binary pulse-width modulated copy of the...

A device using a parametric amplifier inside a resonant optical cavity to generate a frequency-tunable coherent beam of...

The phenomenon that makes nonlinear the mathematical expression for the electrical polarization of a medium through which...

A Kerr soliton refers to a specific type of soliton, a self-reinforcing wave packet, that arises in nonlinear optical...

A strip or annulus of glass coated with a semitransparent material such as inconel. The coating thickness, and as a result...

A wide-field multiobject spectroscopy system used in astronomy, in which a bundle of low-loss optical fibers positioned on...

A deliberately nonlinear amplitude modulation that strengthens weak signals and reduces strong signals for transmission.

Monolithic self-scanning linear image sensor array for multichannel spectroscopy with a spectral range of from 200 to 1000...

A laser-pumped crystal with nonlinear optical properties inside of an optical resonator in which the output generates...

Phase matching is a crucial concept in the field of optics, particularly in nonlinear optics and the generation of coherent...

Technique using functional optical microscope with the addition of a coherent source collinear with the image path. The...

A device used to accelerate the electrons in a free-electron laser by supplying electrical energy to the electron beam...

Polarization refers to the orientation of oscillations in a transverse wave, such as light waves, radio waves, or other...

A double meniscus system in which two achromatized meniscus lenses are arranged symmetrically on either side of the aperture...

The pattern of lines traced by rectilinear scanning in display systems.

Nonlinear optics is a branch of optics that studies the optical phenomena that occur when intense light interacts with a...

A formulaic description of the linear change of the reciprocal optical dielectric tensor with either stress or strain.

Chalcogenide refers to a class of compounds containing elements from group 16 of the periodic table, which includes sulfur...

An interferometric technique for the generation of precision gratings that allows for sequential exposure of small segments...

A method of scanning in which a frame transfer device produces a continuous video image of a moving object by means of a...

A spectrograph that uses a diffraction grating as its dispersive element in place of a prism, and yields greater resolving...

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

A linear positioning stage, also known as a linear stage or translation stage, is a precision mechanical device used to...

A detector array refers to a collection of individual detector elements arranged in a two-dimensional grid or matrix format....

A type of motor that acts as the control element in a servomechanism. It is powered by an amplifier circuit and drives the...

Two-photon excited fluorescence (TPEF) is a nonlinear optical method that allows imaging of biological cells and living...

A microbubble resonator is a device used in photonics and optical physics for the precise manipulation of light waves. It...

A device designed to measure linear or rotary motion by detection of the movement of markings on a transparent medium past a...

Deep learning is a subset of machine learning that involves the use of artificial neural networks to model and solve complex...

In a linear stage, any deviation from the desired translation across a flat, straight line.

A femtosecond laser is a type of laser that emits ultrashort pulses of light with durations on the order of femtoseconds,...

Mechanical device intended for the translation (rotational and linear) using high precision control from electronically...

A Fresnel lens is a type of optical lens that consists of a series of concentric grooves or steps carved into a flat, thin...

An ultrafast pulsed laser is a type of laser that emits extremely short pulses of light with durations typically on the...

The Kerr effect, named after the physicist John Kerr who first observed it in 1875, is a nonlinear optical phenomenon where...

Particle acceleration refers to the process by which charged particles, such as electrons or protons, gain kinetic energy...

A hyperspectral imaging camera is a sophisticated imaging device capable of capturing and processing data across a wide...

A lens aberration in which the focal length varies radially outward from the center of the field. It has the effect of...

The ratio of the power of the carrier wave to that of unwanted signal distortions, or noise, before any nonlinear signal...

Second-order nonlinear optical properties refer to a class of phenomena exhibited by certain materials in response to...

Phase distortion refers to a change in the phase relationships between different frequency components of a signal. In the...

A device for measuring linear dimensions. The optical caliper generally consists of two circularly mounted mirrors whose...

A type of pyroelectric detector with favorable qualities of linearity, sensitivity and spectral responsivity used in FTIR...

Harmonic generation refers to a nonlinear optical process in which incoming photons interact with a material and produce new...

The phenomenon that can render an optical resonator the equivalent of a semiconductor flip-flop. A bistable device will...

The signal formed when two signals, such as light waves, of different frequencies are present simultaneously in a nonlinear...

See periscopic lens; rapid rectilinear lens.

Mode hopping in the context of lasers refers to a phenomenon where a laser system abruptly switches from one longitudinal...