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phenomena Dictionary Terms

hyperchromic shift
Hyperchromic shift refers to an increase in the absorption of light, leading to a higher absorbance, often observed in...
Kerr effect
The Kerr effect, named after the physicist John Kerr who first observed it in 1875, is a nonlinear optical phenomenon where...
optofluidics
Optofluidics is an interdisciplinary field that combines principles from optics and fluidics to create devices and systems...
structural color
Structural color refers to coloration in materials that is not caused by pigments or dyes but is instead a result of the...
Rydberg atom
The term "Rydberg atom" refers to an atom in a highly excited state where one or more of its electrons are in a Rydberg...
remote sensing
Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on...
angular spectrum approach
The angular spectrum approach is a mathematical and computational technique used in the field of optics to analyze and...
attosecond photonics sources
Attosecond photonics sources refer to devices or systems that generate extremely short pulses of light on the order of...
oscilloscope
A system in which a supplied signal causes the deflection of the electron beam in a cathode-ray tube, thus forming a visible...
interferometer
An instrument that employs the interference of lightwaves to measure the accuracy of optical surfaces; it can measure a...
high-speed motion camera
A high-speed motion camera, also known as a high-speed camera or slow-motion camera, is a specialized imaging device...
second-order nonlinear optical properties
Second-order nonlinear optical properties refer to a class of phenomena exhibited by certain materials in response to...
astronomical observatory
A facility designed for the observation and recording of astronomical phenomena.
phase mask
In optics and photolithography, a phase mask refers to a device that modifies the phase of light waves passing through it....
quantum
The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the...
chirped-pulse amplification
Chirped pulse amplification (CPA) is a technique used in laser physics to amplify ultrashort laser pulses to high energies...
repeatability
The degree to which a predetermined or previous setting of a positioning device can be duplicated by observance of the...
infrared astronomy
The study and the interpretation of the infrared emittances of celestial bodies and phenomena.
wave optics
Also referred to as physical optics - the area of optics in which the wave nature of light is essential when defining its...
nonlinear optics
Nonlinear optics is a branch of optics that studies the optical phenomena that occur when intense light interacts with a...
Lorentz oscillator model
The Lorentz oscillator model is a theoretical model used in physics to describe the response of a charged particle (such as...
mode-locked lasers
Mode-locking is a technique used in lasers to produce ultrashort pulses of light with durations on the order of picoseconds,...
phonon
A phonon is a quantum of vibrational energy associated with the periodic motion of atoms or molecules in a crystalline...
dielectric
Exhibiting the characteristic of materials that are electrical insulators or in which an electric field can be sustained...
interferometry
The study and utilization of interference phenomena, based on the wave properties of light.
hyperspectral resolution
Hyperspectral resolution refers to the level of detail or granularity in the spectral information captured by a...
luminescence
Luminescence is the emission of light that occurs without the involved substance undergoing a significant increase in...
cold atom
Cold atoms refer to atoms that have been cooled to extremely low temperatures, typically in the microkelvin (µK) to...
attosecond-pump attosecond-probe spectroscopy
Attosecond-pump attosecond-probe spectroscopy (APAP) is an advanced technique in ultrafast spectroscopy that allows...
linear optics
Linear optics refers to the study and manipulation of light in a linear and deterministic manner, where the response of...
optical design software
Optical design software refers to specialized computer programs used by optical engineers, physicists, and designers to...
dewetting
Dewetting is a phenomenon in materials science and physics where a thin film or coating spontaneously undergoes a process of...
synchrotron radiation
Radiation emitted by electrons when they travel in circular orbits at speeds close to that of light. Synchrotron radiation...
digital signal processing
Digital signal processing (DSP) refers to the manipulation and analysis of signals, which are representations of physical...
Monte Carlo simulation
Simulation of radiative transfer in which each photon is generated by a source and its path through the medium is...
double refraction
The separation of unpolarized light into two plane-polarized elements by a doubly refracting crystal. When a crystal, such...
astronomical photography
The use of photographs to record astronomical objects and phenomena for purposes of physical observation and measurement of...
electron optics
The control of free electron movement through the use of electrical or magnetic fields, and use of this electron movement in...
quantum well
A quantum well is a structure in quantum mechanics that confines particles, such as electrons or holes, in one spatial...
high-speed holography
The holographic recording of sequences of high-speed phenomena. With a multiple beam laser, multiple holograms that depict...
nonlinear optical effect
A class of optical phenomena that can be viewed only with nearly monochromatic, directional beams of light, such as those...
magnon
A magnon is a quasiparticle representing a quantized spin wave in a magnetic material. In other words, it is a collective...
quantum confinement
Quantum confinement refers to the phenomenon in quantum mechanics where the motion of charge carriers, such as electrons or...
telescope lens
A telescope lens is a primary optical component of a telescope system that gathers and focuses light to form an image. It is...
particle acceleration
Particle acceleration refers to the process by which charged particles, such as electrons or protons, gain kinetic energy...
Mie scattering
Mie scattering, named after the German physicist Gustav Mie, refers to the scattering of electromagnetic radiation (such as...
fiber optic sensor
A fiber optic sensor is a device that uses optical fibers to detect and measure physical, chemical, biological, or...
atmospheric optics
The analysis of the properties of radiation, such as light, when acted upon by variations in the atmosphere. Blue and red...
plasma physics
The study of highly ionized gases. Many phenomena not exhibited by uncharged gases are associated with plasma physics.
plasmonics
Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free...
polariton
A polariton is a quasiparticle resulting from the strong coupling between photons (light particles) and certain types of...
in vivo
In vivo is a Latin term that translates to "within the living." In scientific contexts, particularly in biology and...
vacuum chamber
A vacuum chamber is a sealed enclosure from which air and other gases are removed to create a low-pressure environment,...
point cloud
A point cloud is a set of data points in a three-dimensional coordinate system, where each point represents a specific...
multichannel spectral analyzer
A spectrometric instrument that detects radiation simultaneously in multiple channels, sorts it spectrally from the deep...
phase
In optics and photonics, "phase" refers to a property of electromagnetic waves, such as light, that describes the position...
optical
Pertaining to optics and the phenomena of light.
Rayleigh scattering
Rayleigh scattering is a phenomenon that occurs when light waves interact with particles or molecules that are much smaller...
optics
Optics is the branch of physics that studies the behavior and properties of light, including its interactions with matter...
intensity-modulated sensor
A type of fiber optic sensor that responds to a change in the intensity of received light caused by the displacement or...
ultrafast pulsed laser
An ultrafast pulsed laser is a type of laser that emits extremely short pulses of light with durations typically on the...
lattice
In photonics, a lattice refers to a periodic arrangement of optical elements or structures, often on a microscopic or...
astronomy
The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these...
impurity level
In the context of optical materials, the term "impurity level" refers to the presence of foreign atoms or molecules within...
mid-infrared camera
A mid-infrared camera is a type of imaging device designed to capture images in the mid-infrared (mid-IR) spectral range,...
Bose-Einstein condensate
A Bose-Einstein condensate (BEC) is a state of matter that forms at temperatures close to absolute zero. It is named after...

(66 results found)

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