A monochromator is an optical instrument used to isolate and select a narrow range of wavelengths from a broader spectrum of light. The term monochromator is derived from "monochromatic," meaning consisting of a single color or wavelength....

Ratiometry is a technique used in various scientific fields, particularly in analytical chemistry and biochemistry, to...

Laser-induced fluorescence (LIF) is a spectroscopic technique that involves using a laser to excite molecules or atoms,...

Förster resonance energy transfer (FRET) is a mechanism describing the transfer of energy between two closely spaced...

The analysis of fluorescence emitted by discrete atoms, in flames, that have absorbed radiation from an external source. It...

The technique that uses light to detect and analyze the antibodies produced by a specimen stained with an organic dye.

Spectroscopy is a technique used in the study of interactions between matter and electromagnetic radiation. It involves...

The application of a cine camera in recording the images on a fluorescent screen. When x-rays are used to produce the screen...

A dichroic mirror, also known as a dichroic beamsplitter or interference filter beamsplitter, is an optical device that...

Single-molecule Förster resonance energy transfer (smFRET) is a specialized technique in biophysics and molecular...

A device that measures the intensity of photochemically active radiation, particularly from the sun. One form of this...

Photographic recording that uses infrared radiation as the light source to form an image of a microscopic object and a...

A laser having a material, such as ruby, that has an energy state structure of three levels: the ground state (1) wherein...

The use of a short-duration electron beam to record high-speed events that occur in microscopic objects made of materials...

A pinhole camera used to record a radioactive tracer's distribution in a subject by means of a scintillation counter or a...

An optical recording technique that uses light source(s), a beamsplitting cube, light detector(s) and an optical fiber...

A device that detects and measures the quantity of exposure to nuclear radiation. It uses a special glass rod that...

Fluorescence lifetime refers to the average time it takes for a fluorophore, a molecule that absorbs light at one wavelength...

A cathode-ray tube that serves as a picture tube in a television receiver. The signal representing the picture intensity is...

The suppression of fluorescence by absorption of the stimulating radiation.

A method for remote measurement of the temperature of moving surfaces in harsh environments by using a laser to stimulate...

A nonradiative transition refers to a process in which an electron or an atom undergoes a change in its energy state without...

Spatially offset Raman spectroscopy (SORS) is a technique that extends traditional Raman spectroscopy by incorporating...

The optical energy transfer between ions of differing atoms.

The fluorescent emission spectrum emitted by certain substances following the irradiation of one of these substances with...

A photofluorescent compound that, when used with a scintillating substance, absorbs photons and emits related photons having...

The study of flames by means of a laser emitting blue light and a spectrometer to measure the green fluorescence created by...

A type of fluorescence spectroscopy in which an excimer laser, a dye laser and a frequency-doubling device are used to...

A fluoroscope equipped with a magnified, fine-grained fluorescent screen to determine the fluorescence emitted by a...

A long-pass filter is an optical filter that allows longer wavelengths of light to pass through while blocking or...

Fluorescence is a type of luminescence, which is the emission of light by a substance that has absorbed light or other...

Any fluorescence in which the wavelength of the emitted light differs from that of the absorbed light.

A photomultiplier tube (PMT) is a highly sensitive vacuum tube that detects and amplifies low levels of light. It is widely...

A lens having an extremely high aperture and used in the recording of x-ray fluorescent screen images. It often is specially...

An instrument used to detect the fluorescence emitted by a source in comparison with a reference.

Medical lasers are devices that produce intense beams of light with specific characteristics and properties, which are used...

An EMCCD (electron-multiplying charge-coupled device) camera is a type of scientific camera specifically designed for...

An inorganic compound, yellow to orange in color, that fluoresces strongly enough when bombarded by a high-current-density...

One of various types of fluorescent screens used to detect x-ray radiation. Photographic film is mildly sensitive to x-rays,...

This results from the simultaneous absorption of two photons, each having half the energy needed for excitation and...

Agents used for testing light sources and natural daylight with visual and instrumental assessment using a set of white...

A single-photon avalanche diode (SPAD) is a specialized type of photodetector designed to detect extremely weak optical...

Referred to as SWCNTs, these cylindrical nanostructures composed of a folded sheet of graphene can be used as near-infrared...

An intensified charge-coupled device (ICCD) camera is an advanced imaging device that combines the capabilities of both an...

In atomic fluorescence spectroscopy, fluorescence emitted by an atom at a spectral line of a wavelength identical to that of...

A chemical substance that exhibits fluorescence when excited by ultraviolet radiation, x-rays or an electron beam. The...

Wide-field fluorescence microscopy uses either naturally occurring structures or staining with fluorescent tags that are...

Superresolution refers to the enhancement or improvement of the spatial resolution beyond the conventional limits imposed by...

A fluorescent screen refers to a phosphorescent or fluorescent-coated surface that emits visible light when exposed to other...

A fluorophore is a molecule or a portion of a molecule that has the ability to emit light upon excitation by an external...

A fiber optic imaging bundle is a specialized optical device composed of multiple optical fibers bundled together. Each...

With respect to atomic fluorescence spectroscopy, the fluorescence that is emitted by an atom at a spectral line of a...

Also known as single plane illumination microscopy (SPIM), this process was designed for imaging of sensitive samples and...

A scientific CMOS (complementary metal-oxide-semiconductor) camera is a type of digital camera specifically designed for...

A quantum dot is a nanoscale semiconductor structure, typically composed of materials like cadmium selenide or indium...

The fluorographic method whereby the visible image (as opposed to the x-ray image) is photographed by mounting a camera in...

The photographic filming of the action of x-ray images recorded on a fluorescent screen by means of large lens apertures and...

Metabolic imaging refers to the visualization and quantification of metabolic processes within living organisms, tissues, or...

A pump-probe technique whereby a single wavelength source may be used in order to excite a given sample to determine...

Luminescence is the emission of light that occurs without the involved substance undergoing a significant increase in...

A material used in photodynamic therapy that is retained selectively by tumor tissue when injected into the body; it then...

Fluorescence formed when atoms of one element collide with excited atoms of another.

Scientific complementary metal-oxide semiconductor (sCMOS) refers to a type of image sensor technology specifically designed...

A halogen lamp, also known as a tungsten halogen, quartz-halogen, or quartz iodine lamp, is an incandescent lamp that uses a...

An electron tube that employs electromagnetic radiation to produce a visual replica of an image produced on its cathode....

Spectroscopy used to study the concentration, diffusion and Brownian motion of small particles suspended in a fluid by...

Fluorescence imaging technique in which the excitation light from the objective is directed into the sample producing...

Fluorescence lifetime imaging (FLIM) is an advanced imaging technique that provides information about the lifetime of...

The collection and detection of x-rays by virtue of their ionizing properties. The ionization may be perceived directly by a...

A blue diode laser is a type of semiconductor laser that emits light in the blue wavelength range of the electromagnetic...

Nanoparticle photonic resonator absorption microscopy is a microscopy technique that combines the principles of photonic...

Autofluorescence refers to the natural emission of fluorescence exhibited by certain biological structures or molecules when...

A nitrogen vacancy (NV) refers to a specific type of defect or impurity in a crystal lattice where a nitrogen atom replaces...

The photographic recording of a subject that exhibits luminescence only for an extremely short time (10-8 s) after the...

In the context of optical materials, the term "impurity level" refers to the presence of foreign atoms or molecules within...

Flow cytometry is a powerful technique used in biology and medicine for the quantitative analysis of the physical and...

A tube containing mercury vapor and lined with a phosphor. When current is passed through the vapor the strong ultraviolet...

A desklike apparatus with an opal glass surface illuminated from beneath by fluorescent tubes. It is equipped with roll...

An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical...

A cathode-ray tube that increases the brightness or size of an image or forms a visible image from invisible radiation. The...

Photobleaching is a phenomenon in which the fluorescence of a fluorophore (a fluorescent molecule or dye) is permanently...

Also known as HCS, an analytical method designed to collect statistically relevant amounts of quantitative data on many...

Fluorescence microscopy is a specialized optical imaging technique used in biology, chemistry, and materials science to...

Time-correlated single photon counting (TCSPC) is a technique used in photon counting applications, particularly in the...

Structured illumination microscopy (SIM) is an advanced optical imaging technique used in microscopy to enhance the...

Fluorescence produced as a result of the intrinsic property of the material itself or the doping of the material with trace...

Stochastic optical reconstruction microscopy (STORM) is a superresolution microscopy technique that enables imaging of...

A filter fluorometer that uses a photomultiplier tube to detect the fluorescence of a sample.

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

Spectral flow cytometry is an advanced flow cytometry technique that expands the capabilities of traditional flow cytometry...

Ultraviolet (UV) fiber optics refers to optical fibers that are designed and optimized for the transmission of ultraviolet...

Also known as OCT-A, optical coherence tomography angiography is an imaging technique that uses light waves to measure...

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

A type of optical microscope that allows the specimen being viewed to be irradiated by ultraviolet, violet and occasionally...

An instrument that serves to produce an enlarged electron image on a fluorescent screen by focusing an infrared image of a...

The photographic recording of images produced by the electrons from an electron microscope. The electron beam carries the...

A fluorographic method whereby the sensitive photographic medium is pressed against a fluorescent screen to form a visible...

The face of a cathode-ray tube (CRT) that has a fiber optic sheet attached to its surface. The sheet's fibers are at right...

Single molecule localization microscopy (SMLM) is a group of super-resolution microscopy techniques that surpass the...

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

A sensing or image-forming detector that serves to convert infrared rays into visible signals for communication purposes....

A type of laser spectroscopy used to measure short-lived isotopes by observing sudden bursts of fluorescence resulting from...

Rare-earth elements (REEs) are a group of seventeen chemical elements found in the Earth's crust, characterized by their...

In ultraviolet and fluorescence photography, the term applied to the filter used in the photographic system and with the...

Label-free refers to a technique or method that does not require the use of additional labels, tags, or markers to detect or...

Recombinase polymerase amplification (RPA) is a molecular biology technique used to rapidly amplify specific DNA or RNA...

The light emitted from tissues without the use of fluorescent dyes as markers. Because cancerous tissues and normal tissues...

Intravital microscopy is an imaging technique used to visualize biological processes within living organisms, typically in...

A camera with a very high aperture lens or mirror system for photographing x-ray fluorescent screen images, mainly to save...

The spectroscopic study of radiation emitted by the process of fluorescence.

Total internal reflection fluorescence (TIRF) microscopy is an advanced fluorescence microscopy technique that leverages the...

Fluorescent proteins are proteins that exhibit the property of fluorescence, which is the ability to absorb light at a...

A photodetector, also known as a photosensor or photodiode, is a device that detects and converts light into an electrical...

Fluorescence produced by a material that has been treated with a dilute solution of fluorescing material.

This type of miniaturized system, referred to as CMOS qPCR, combines microfluidic technology with an ultralow-light CMOS...

An APD detector, or avalanche photodiode detector, is a type of photodetector used to detect light or optical signals by...

An instrument used to measure the duration of fluorescence emanating from a biological sample to monitor and evaluate its...

Microscopy is a scientific technique that involves the use of microscopes to observe and study objects that are too small to...

A camera system in which the image formed on the fluorescent screen of an image converter tube in the system is recorded by...

A lab-on-a-chip (LOC) is a miniaturized device that integrates various laboratory functions and capabilities onto a single,...

The process in which the normal rate of fluorescent emission from a substance is enhanced by virtue of the optical gain of...

The analysis and measurement of the fluorescence emitted by a source. Fluorometric processes are more sensitive than light...

An automatic scanning instrument that is used to study a substance's fluorescence over a wide range of wavelengths. It...

An incandescent or fluorescent lamp whose emittance spectrum resembles that of daylight.

1. In a cathode-ray tube, the glow surrounding a bright spot that appears on the fluorescent screen as the result of the...

A calcium indicator is a molecule that is sensitive to changes in calcium ion (Ca2+) concentrations in biological systems....

STED microscopy, or stimulated emission depletion microscopy, is a superresolution imaging technique in fluorescence...

A device, also called a fluorescence lifetime instrument, that measures decay curves of fluorescing samples. It generally...

An extremely powerful microscope that renders individual ionized atoms visible by using an electric field to propel the ions...

A vacuum tube with an electron gun at one end and a fluorescent screen at the other. Electrons emitted from a heated...

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

A fiber optic spectrometer is a device used for measuring the spectral content of light. It utilizes optical fibers to...

The photographic recording of a visible image formed by the impact of invisible radiation on a fluorescent screen.

A powerful method, referred to as FCS, for determining the average diffusion coefficients of fluorescent molecules in...