Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation. However, when the absorbed electromagnetic radiation is intense, it is possible for one electron to absorb two photons; this two-photon absorption can lead to emission of radiation having a shorter wavelength than the absorbed radiation. The emitted radiation may also be of the same wavelength as the absorbed radiation, termed "resonance fluorescence".

The most striking examples of fluorescence occur when the absorbed radiation is in the ultraviolet region of the spectrum, and thus invisible to the human eye, and the emitted light is in the visible region.

Fluorescence has many practical applications, including mineralogy, gemology, chemical sensors (fluorescence spectroscopy), fluorescent labelling, dyes, biological detectors, and, most commonly, fluorescent lamps.

SeaOWL UV-A™ (SeaWater Oil Finder™)
Based upon the highly successful WET Labs’ ECO sensor, Sea-Bird Scientific has developed an industry leading detection technology creating a 5X optical resolution improvement over its predecessor.
The Water Quality Monitor (WQM) is designed to deliver core biogeochemical water quality parameters in coastal ecosystems from a single integrated package.
Bolt-on biogeochemical sensors are now available from Sea-Bird Scientific.
The new Navis BGCi offers a profiling float with an integrated data stream for a suite of biogeochemical sensors.
The Thetis Profiler is a submersible, vertically profiling platform for use in coastal marine and fresh water environments.
The Sea-Bird Scientific SeaOWL UV-A™ SLC introduces a new in-situ oil-in-water sensor specifically designed for integration into the Teledyne Webb Research Slocom glider.
An advanced active fluorometer designed to measure variable chlorophyll fluorescence in photosynthetic organisms.
Bench Top AFLA
WET Labs' Aquatic Laser Fluorescence Analyzer (ALFA) provides spectrally and temporally resolved measurements of key bio-environmental variables in oceanic, coastal, and fresh waters.
The Environmental Characterization Optics (ECO) series of sensors incorporates a common set of options with a single basic design to make them ideal for a wide variety of deployments.
ECO FL fluorometers measure fluorescence from chlorophyll-a, CDOM, uranine, rhodamine, and phycoyanin and phycoerythrin.
The Environmental Characterization Optics (ECO) series of sensors incorporates a common set of options with a single basic design to make them ideal for a wide variety of deployments.
ECO Triplet-w
The ECO Triplet custom optical instrument is now available with active anti-biofouling. It features an evolutionary design that builds off the bio-wiper and faceplate available on the current ECO line.
ECO Triplet
The Triplet is a a special-order, three-optical-sensor instrument available in a user-defined configuration. The Triplet addresses the need for multiple simultaneous scattering and fluorescence sensors for autonomous and unattended measurement platforms.
WET Labs' ECO Puck
The puck is a miniature version of the popular Environmental Characterization Optics (ECO) series sensors built for OEM applications
BOSS Bio-Optical Sensor System
A flexible platform that expands sensor capabilities of profiling floats by providing multispectral radiometry, scattering, beam attenuation, chlorophyll, and CDOM measurements to complement the temperature, salinity and oxygen measurements of the profiling float.
WETStar Chlorophyll Fluorometer
The WETStar fluorometer provides breakthrough performance for detecting various types of fluorescence. It uses a central axial optical tube to provide efficient signal output.
Subscribe to Fluorescence