A whole-flow-field technique providing instantaneous velocity vector measurements in a cross-section of a flow that is seeded with micron-sized particles. CCD or CMOS cameras and laser light sheets produce real-time velocity maps by measuring the...

In a fiber optic transmission system, the conversion of received optical pulses directly to an electrical signal.

Self-phase modulation (SPM) is a nonlinear optical phenomenon that occurs when an intense laser beam passes through a...

A ring dye laser that uses prisms and a saturable absorber within the laser cavity to shape and shorten the pulses...

An instrument designed for laser technology that is used to extract single pulses from the laser and transmit a portion of...

High harmonic generation (HHG) refers to a nonlinear optical process in which intense laser light interacts with a gaseous...

A laser whose pulses are expanded, using gratings and optical fibers, before amplification and compressed to increase beam...

Number of pulses emitted per unit of time by a pulsed laser.

Acronym for profile resolution obtained by excitation. In its simplest form, probe involves the overlap of two...

A laser that generates a succession of pulses at a high enough repetition rate to appear continuous. The pump source is...

A charge-coupled device (CCD) is a type of electronic image sensor used in various imaging devices, including digital...

The laser damage threshold refers to the maximum level of laser intensity that a material can withstand without experiencing...

Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and...

Harmonic generation refers to a nonlinear optical process in which incoming photons interact with a material and produce new...

The formation and display of three-dimensional images by ultrasonic energy. In one technique, the energy pulses from an...

Any noise or current fluctuation that prevents precise measurement of the signal current. Both dark current and signal...

An optical time-domain reflectometer (OTDR) is a specialized instrument used in optical fiber communications to characterize...

Abbreviated TEA CO2 laser. A gas laser that provides shorter pulses and higher peak powers than conventional CO2 lasers. The...

Volumetric imaging refers to the capture, visualization, and analysis of three-dimensional (3D) information from a volume of...

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

An excimer laser is a type of ultraviolet laser that emits short pulses of light in the ultraviolet spectrum. The term...

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

A pulsed laser that emits a recurring pulsed output. Frequency of the pulses emitted is known as pulsed recurrence frequency...

An ultrafast pulsed laser is a type of laser that emits extremely short pulses of light with durations typically on the...

Power modulation refers to the intentional variation of power levels in a signal, often in the context of electronic...

A laser that relies on chemical activity instead of electrical energy to produce the pumping action necessary to form pulses...

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

An alexandrite laser is a solid-state laser that utilizes a synthetic crystal made from the rare earth element alexandrite...

A method of optical fiber coupling in which the fibers are ground down to expose their cores and placed together to allow...

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

A current-source thermal detector used to detect and study the pulses obtained from particular lasers.

A frequency comb is a precise and regular series of equally spaced spectral lines, or frequencies, that are generated with...

A laser that emits energy in a series of short bursts or pulses and that remains inactive between each burst or pulse. The...

A laser capable of generating light pulses that last only a few femtoseconds. This can be achieved by nonlinear filtering to...

Optoacoustic, or photoacoustic, refers to a phenomenon and related techniques that involve the generation of acoustic waves...

A laser using a dye solution as its active medium. Its output is a short pulse of broad spectral content and its achievable...

Q-switched operation, or q-switching, is a technique used in lasers to produce short and intense pulses of light. The term...

The technique of generating ultrashort -- down to subpicosecond -- pulses by pumping a dye laser with mode-locked laser...

Holographic recording whereby the object is illuminated by two pulses, separated by a time interval, from a Q-switched laser...

A document-transmitting process that uses a cylinder that rotates the document to be scanned and detected by a photoelectric...

Nonlinear optical materials are substances that exhibit optical properties that are not linearly proportional to the...

A plasma accelerator is a type of particle accelerator that uses electric fields and magnetic fields to accelerate charged...

1. A solid figure whose base is a circle and whose sides taper upward evenly to a point or apex. Light rays diverging from...

Also duty factor, duty ratio. The product of the pulse duration and the pulse repetition frequency of a wave composed of...

Attosecond photonics sources refer to devices or systems that generate extremely short pulses of light on the order of...

A cathode-ray tube, driven by a computer, that receives impulses of information from the computer and displays it in a...

Interferometric measurement of the interference pattern recorded when a complex object is illuminated by two laser pulses...

Gain-switching is a technique used in lasers to generate short pulses of light by modulating the gain of the laser medium....

Laser peening is a surface enhancement technique used to improve the mechanical properties of materials, particularly...

Supercontinuum refers to a broad spectrum of light that spans a wide range of wavelengths, typically from the visible to the...

A Ti:sapphire laser is a type of solid-state laser that utilizes a titanium-doped sapphire crystal as the gain medium. The...

A system that uses a continuous-wave laser to measure the velocity of an object by focusing the laser beam on the object,...

A pulse having extremely short duration, about 10-13 to 10-10 s, that is produced by mode locking of wide-bandwidth lasers,...

Chirped pulse amplification (CPA) is a technique used in laser physics to amplify ultrashort laser pulses to high energies...

Optical fiber is a thin, flexible, transparent strand or filament made of glass or plastic used for transmitting light...

An optogenetic technique that embeds genetically-engineered proteins to the heart to aid in terminating arrhythmias. After...

Mode-locking is a technique used in lasers to produce ultrashort pulses of light with durations on the order of picoseconds,...

Attosecond-pump attosecond-probe spectroscopy (APAP) is an advanced technique in ultrafast spectroscopy that allows...

A femtosecond laser is a type of laser that emits ultrashort pulses of light with durations on the order of femtoseconds,...

A semiconductor laser that operates in the infrared and that is pumped with strong pulses of radiation from a second laser....

Directional and coherent radiation pulses that result from an ensemble of coherently prepared states in an optical medium.

A memory system composed of a stack of holographic plates, a mode-locked laser and a rapid detector array. Ultrashort laser...

Separation of incident laser pulses by several seconds so holographic plates can be changed and sandwiched between the...

Electronic circuit capable of distinguishing the pulses emitted by separate counters in a given time phase and determining...

Excimer laser coronary angioplasty (ELCA) refers to a medical procedure used in the treatment of coronary artery disease....

Neuromorphic refers to the design and development of computing systems or devices that are inspired by the structure and...

Continuous wave (CW) refers to a type of signal or transmission where the signal is constant and does not vary with time. In...

A circuit incorporated into counter systems that records only pulses that have amplitudes between two preselected limits.

Observed phenomenon in laser pulses in which a large number of excited electrons are created and in which multiphoton...

An instrument that can preselect intervals, often in increments of 1, 10 or 100 ns, for the generation of electronic pulses...

In optical communication systems, operations in which the amplitude of the pulses, as opposed to their width, determines the...