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intense Dictionary Terms

concave holographic grating
The generation of a grating on a concave spherical blank by the holographic process. In this way, ghost images and intense...
free-electron laser
A free-electron laser (FEL) is a type of laser that generates coherent, high-intensity electromagnetic radiation by using a...
photocoagulator
An optical medical instrument that uses an intense, precisely focused beam of light to stop weakened blood vessels from...
burning glass
A convex lens that brings an incident bundle of rays to a focus to produce intense heat at the focus.
inertial fusion energy
Inertial fusion energy (IFE) refers to a proposed method of generating electricity by harnessing the energy released from...
high harmonic generation
High harmonic generation (HHG) refers to a nonlinear optical process in which intense laser light interacts with a gaseous...
medical lasers
Medical lasers are devices that produce intense beams of light with specific characteristics and properties, which are used...
harmonic generation
Harmonic generation refers to a nonlinear optical process in which incoming photons interact with a material and produce new...
exciter lamp
A small incandescent lamp whose intense beam is focused on the optical soundtrack of a motion picture film. The soundtrack...
synchrotron
A synchrotron is a type of particle accelerator that uses magnetic fields to steer charged particles, typically electrons or...
nonlinear optics
Nonlinear optics is a branch of optics that studies the optical phenomena that occur when intense light interacts with a...
Kerr effect
The Kerr effect, named after the physicist John Kerr who first observed it in 1875, is a nonlinear optical phenomenon where...
q-switched operation
Q-switched operation, or q-switching, is a technique used in lasers to produce short and intense pulses of light. The term...
beam-addressable technology
The application of reversible writing with a laser beam on particular storage materials. In one method, an amorphous film is...
light filament
Phenomenon caused by an ultrashort and ultra-intense light pulse propagating in a Kerr medium, such as air or water. When...
parametric amplification
Means of amplifying optical waves whereby an intense coherent pump wave is made to interact with a nonlinear optical crystal...
density matrix formulation
The exact mathematical description of the interactions of matter and intense electromagnetic fields, such as those that...
flash spectroscopy
The study and interpretation of the spectra of substances after they have absorbed the radiant energy emitted by a brief,...
ablation threshold
The minimum energy required to induce atomic and molecular separation or displacement due to incident intense laser...
Raman effect
When light is transmitted through matter, part of the light is scattered in random directions. A small part of the scattered...
laser active elements
Laser active elements typically refers to the substances or materials within a laser system that play a critical role in the...
supercontinuum
Supercontinuum refers to a broad spectrum of light that spans a wide range of wavelengths, typically from the visible to the...
arc flash
An arc flash is a sudden release of electrical energy due to an electric arc — a continuous, high-current discharge of...
Nd:YAG laser
Nd:YAG laser refers to a solid-state laser that utilizes neodymium-doped yttrium aluminum garnet (Nd:Y3Al5O12) as the gain...
microprobe
An instrument that produces an intense, tightly focused beam of ions to stimulate emissions from a minute section of a...
attosecond-pump attosecond-probe spectroscopy
Attosecond-pump attosecond-probe spectroscopy (APAP) is an advanced technique in ultrafast spectroscopy that allows...
inertial confinement fusion
Inertial confinement fusion (ICF) is a method of achieving nuclear fusion, a process where two atomic nuclei combine to...
second-order nonlinear optical properties
Second-order nonlinear optical properties refer to a class of phenomena exhibited by certain materials in response to...
GaAlAs laser
A GaAlAs laser is a type of semiconductor laser diode that emits light in the near-infrared region of the electromagnetic...
wedge photometer
A photometer that uses a wedge, marked to show its reduction of flux density, to make two light sources equal in intensity...
laser spark
Breakdown of a gas produced by the attenuation of an intense pulse of focused laser light.
xenon arc photocoagulator
An instrument for eye surgery that directs intense xenon arc light through the transparent cornea lens to the retina where...
centerburst
In an interferogram, an intense portion of the recording that corresponds in size to the amount of infrared radiation...
thermal blooming
The effect that characterizes an intense laser beam that is passed through an absorbing medium, causing the absorbed energy...
laser peening
Laser peening is a surface enhancement technique used to improve the mechanical properties of materials, particularly...
flash photolysis
A spectroscopic technique used in the detection of free radicals by virtue of their electronic spectra. In this method, an...
parametric oscillator
A device using a parametric amplifier inside a resonant optical cavity to generate a frequency-tunable coherent beam of...
critical scattering
Intense scattering in the region of the liquid-gas critical point. At this point the gas will strongly scatter all light to...
laser ablation
Laser ablation is a process that involves the removal or erosion of material from a target surface using laser energy. This...
fractional photothermolysis
A laser skin-resurfacing method that creates microscopic thermal wounds referred to as microscopic treatment zones (MTZs),...
ultrafast laser
An ultrafast laser is a type of laser that emits extremely short pulses of light with durations typically on the order of...
photobleaching
Photobleaching is a phenomenon in which the fluorescence of a fluorophore (a fluorescent molecule or dye) is permanently...
flying spot scanner
A device used to scan, with a small, intensely bright spot, portions of a picture surface and to transform the original...
photochromic
Photochromic refers to a property exhibited by certain materials, typically organic compounds or dyes, which undergo...
mode-locked lasers
Mode-locking is a technique used in lasers to produce ultrashort pulses of light with durations on the order of picoseconds,...
spectral luminous efficiency
Ratio of the radiant flux at a particular wavelength lm to that at any other wavelength l, such that both radiations produce...
self-phase modulation
Self-phase modulation (SPM) is a nonlinear optical phenomenon that occurs when an intense laser beam passes through a...
long-pass filter
A long-pass filter is an optical filter that allows longer wavelengths of light to pass through while blocking or...
electron-beam drilling
The use of a tightly focused beam of electrons to drill minute holes in substances. The drilling is accomplished by the...
laser plasma
A plasma produced by the interaction of an intense laser pulse with a material surface. Production of ionized particle with...
attosecond photonics sources
Attosecond photonics sources refer to devices or systems that generate extremely short pulses of light on the order of...
surface-enhanced Raman scattering
Surface-enhanced Raman scattering (SERS) is a powerful analytical technique that enhances the Raman scattering signal of...
phototoxicity
Phototoxicity refers to the harmful effects caused by exposure to light, particularly intense or ultraviolet (UV) light, on...
plasma accelerator
A plasma accelerator is a type of particle accelerator that uses electric fields and magnetic fields to accelerate charged...

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