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laser light Dictionary Terms

laser speckle
Sparkling granular pattern that is observed when an object diffusely reflects coincident laser light. Speckle appears as an...
polygonal mirror
A polygonal mirror, also known as a multifaceted mirror or facet mirror, is a type of optical component used in various...
stimulated Brillouin scattering
In Stimulated Brillouin Scattering (SBS), an incident photon (usually laser light) interacts with acoustic phonons in a...
Kerr effect
The Kerr effect, named after the physicist John Kerr who first observed it in 1875, is a nonlinear optical phenomenon where...
photothermal effect
The cause of some forms of laser injury in which tissue absorbs incident laser light and experiences a damaging rise in...
laser-induced fluorescence
Laser-induced fluorescence (LIF) is a spectroscopic technique that involves using a laser to excite molecules or atoms,...
prism coupler
An instrument that measures the angle at which a prism can couple laser light into an optical waveguide; used to determine...
laser rangefinder
A laser rangefinder is a device that uses laser technology to measure the distance between the device and a target. It...
optical microphone
Laser-powered telephone device for analog communications that employs a vibrating plastic membrane as a transmitter to...
eye-safe laser operation
Wavelengths between 400 and 1400 nm (VIS to NIR) are focused onto the retina by the cornea. Because the retina is sensitive...
Brillouin scattering
Brillouin scattering is a phenomenon in physics where an incident electromagnetic wave (usually light) interacts with...
laser strainmeter
An instrument usually consisting of a very long interferometer, 3 to 800 m, and a laser light source for the study and...
polychromatic acousto-optic modulator
A crystal-based device that combines and adjusts the intensities of multiple wavelengths of laser light in order to obtain...
YAG crystal
A YAG crystal refers to a solid-state crystal made of yttrium aluminum garnet (YAG), which is a synthetic crystalline...
Er:YAG laser
An Er:YAG laser is a type of solid-state laser that uses a crystal made of erbium-doped yttrium aluminum garnet...
fiber-based confocal luminescence microscope
A microscope in which laser light is delivered through single-mode fibers that replace the pinhole usually used in confocal...
hematoporphyrin derivative
A material used in photodynamic therapy that is retained selectively by tumor tissue when injected into the body; it then...
microprobe
An instrument that produces an intense, tightly focused beam of ions to stimulate emissions from a minute section of a...
antiguide
A waveguide that has a core with a lower refractive index than the refractive index of the cladding. This structure can...
laser spark
Breakdown of a gas produced by the attenuation of an intense pulse of focused laser light.
laser surgery
Laser surgery refers to a medical procedure in which a laser, or focused beam of light, is used as a precision tool to cut,...
alexandrite
A host crystal for chromium that emits pulsed or continuous-wave laser light, tunable from about 720 to 790 nm.
alexandrite lasers
An alexandrite laser is a solid-state laser that utilizes a synthetic crystal made from the rare earth element alexandrite...
speckle metrology
Refers to the variety of techniques that use the interference pattern produced by laser light diffusely reflected by an...
laser active elements
Laser active elements typically refers to the substances or materials within a laser system that play a critical role in the...
contact laser surgery
Laser surgery by means of a low-power laser system using a synthetic sapphire scalpel that transmits the laser light while...
double-clad fiber
Double-clad fiber (DCF) is a specialized optical fiber that features two concentric cladding layers surrounding a core. The...
particle image velocimetry
A whole-flow-field technique providing instantaneous velocity vector measurements in a cross-section of a flow that is...
fiber laser
A fiber laser is a type of laser in which the active gain medium is an optical fiber doped with rare-earth ions such as...
optoacoustic
Optoacoustic, or photoacoustic, refers to a phenomenon and related techniques that involve the generation of acoustic waves...
soliton
Any isolated wave that propagates without dispersion of energy. Specifically to photonics, an ultrashort pulse of laser...
gated pulse
A discontinuous burst of laser light generated by timing or "gating'' a continuous-wave laser.
laser diode module
A laser diode module is a compact device that incorporates a laser diode, optics, and often other components into a single...
beam table
Laser light show effects equipment including optics and mechanical devices that reflect, position or distort the laser beam,...
distributed feedback laser
A distributed feedback laser (DFB laser) is a type of semiconductor laser diode designed to emit coherent, narrow-bandwidth...
four-level laser
A solid-state laser consisting of active atoms or ions of a transition metal, rare-earth metal or actinide, imbedded in a...
laser cavity
A laser cavity, also known as an optical cavity or resonator, is a fundamental component of a laser system. It is a confined...
optical bottle
A term referring to an optical force field used to trap and stabilize particles acted upon by a force such as laser light.
photosensitizer
A substance that increases a material's sensitivity to electromagnetic irradiation. In photodynamic therapy, a drug used to...
solid-state laser
A solid-state laser is a type of laser that uses a solid gain medium (as opposed to a liquid or gas) to produce coherent...
lumia
A laser effect used especially for laser light shows. Lumia are created by placing a distorting medium such as rippled glass...
GRIN lens
A GRIN (gradient index) lens is a type of optical lens that utilizes a gradient in refractive index across its volume rather...
laser photochemistry
The study concerned with the stimulation of chemical activity by laser light as a result of the absorption of photons by a...
laser
A laser, which stands for "light amplification by stimulated emission of radiation," is a device that produces coherent and...
laser cooling
A process and method by which manipulation and orientation of a given number of directed laser beams decreases the motion of...
laser crystal
A laser crystal, also known as an active medium or gain medium, is a solid-state material used in the construction of...
laser optics
Laser optics refers to a broad category of optical components and systems designed for manipulating and controlling laser...
laser contact tip
A surgical device used to deliver laser light. Specifically,contact tips are made with artificially grown sapphire which is...
optical head
In compact disc and CD-ROM technology, the portion of the drive that projects the laser light onto the surface of the media...
broadband dielectric mirrors
Broadband dielectric mirrors, also known as broadband mirrors, are optical coatings designed to efficiently reflect or...
ring-laser gyroscope
A ring laser gyroscope (RLG) is a type of gyroscope that uses laser light to detect and measure changes in orientation. It...
optical tweezers
Optical tweezers refer to a scientific instrument that uses the pressure of laser light to trap and manipulate microscopic...
laser microscopy
Technique using functional optical microscope with the addition of a coherent source collinear with the image path. The...
holmium laser
Holmium lasers are a type of medical laser that utilizes holmium-doped crystals as the gain medium. The term holmium laser...
supercontinuum
Supercontinuum refers to a broad spectrum of light that spans a wide range of wavelengths, typically from the visible to the...
plasma shield
Plasma's ability to stop the transmission of laser light.
free-electron laser
A free-electron laser (FEL) is a type of laser that generates coherent, high-intensity electromagnetic radiation by using a...
dichroic mirror
A dichroic mirror, also known as a dichroic beamsplitter or interference filter beamsplitter, is an optical device that...
sapphire optical fiber
Sapphire optical fiber is a type of optical fiber made from single-crystal sapphire, which is a form of aluminum oxide...
helium-neon laser
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...
argon-ion laser
gas laser using ionized argon as the active medium and applying electronic excitation in order to produce the laser light
microbubble resonator
A microbubble resonator is a device used in photonics and optical physics for the precise manipulation of light waves. It...
laser desorption
A process of forming ions within a given molecular species by incident laser light. The molecular species may remain intact,...
cold atom
Cold atoms refer to atoms that have been cooled to extremely low temperatures, typically in the microkelvin (µK) to...
tip-enhanced Raman scattering
Tip-enhanced Raman scattering (TERS) is a powerful technique that combines Raman spectroscopy with the enhanced spatial...
harmonic generation
Harmonic generation refers to a nonlinear optical process in which incoming photons interact with a material and produce new...
high harmonic generation
High harmonic generation (HHG) refers to a nonlinear optical process in which intense laser light interacts with a gaseous...
mask
1. A framelike structure that serves to restrict the viewing area of the screen when placed before a television picture...
laser output
The laser output refers to the generated and emitted light produced by a laser system. This output is characterized by...
lidar
Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and...
holography
Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and...
laser painting
Extended period exposure photographs of a laser light created with various patterns within full image (laser graffiti).
diode-pumped solid-state laser
A diode-pumped solid-state laser (DPSSL) is a type of laser system that uses semiconductor diode lasers to pump energy into...
dye-polymer optical disc
A type of erasable data storage device that uses a medium deposited on the disc in two layers, each dyed to absorb a...

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