Laser science
Laser science or laser physics is a branch of optics that describes the theory and practice of lasers. Laser science is principally concerned with quantum electronics, laser construction, optical cavi...
The World’s Most Powerful Laser Has Just Been Fired In Japan
Scientists in Japan have set the record for the most powerful laser ever fired, producing a 2 petawatt pulse - that’s 2 quadrillion watts - using a device known as the Laser for Fast Ignition Experime...
Better Memory With Faster Lasers
DVDs and Blu-ray disks contain so-called phase-change materials that morph from one atomic state to another after being struck with pulses of laser light, with data "recorded" in those two atomic stat...
Population inversion
In science, specifically statistical mechanics, a population inversion occurs when a system (such as a group of atoms or molecules) exists in a state with more members in an excited state than in lowe...
Population inversion - Wikipedia
Laser construction
A laser is constructed from three principal parts:
The pump source is the part that provides energy to the laser system. Examples of pump sources include electrical discharges, flashlamps, arc la...
Laser construction - Wikipedia
Active laser medium
The active laser medium (also called gain medium or lasing medium) is the source of optical gain within a laser. The gain results from the stimulated emission of electronic or molecular transitions t...
Active laser medium - Wikipedia
Optical cavity
An optical cavity, resonating cavity or optical resonator is an arrangement of mirrors that forms a standing wave cavity resonator for light waves. Optical cavities are a major component of lasers, s...
Optical cavity - Wikipedia
Quantum electronics
Quantum optics is a field of research that uses semi-classical and quantum-mechanical physics to investigate phenomena involving light and its interactions with matter at submicroscopic levels.
Li...
Multiple exciton generation
In solar cell research, carrier multiplication is the phenomenon wherein the absorption of a single photon leads to the excitation of multiple electrons from the valence band to conduction band. In th...
Better Memory With Faster Lasers
DVDs and Blu-ray disks contain so-called phase-change materials that morph from one atomic state to another after being struck with pulses of laser light, with data "recorded" in those two atomic stat...
Beam parameter product
In laser science, the beam parameter product (BPP) is the product of a laser beam's divergence angle (half-angle) and the radius of the beam at its narrowest point (the beam waist). The BPP quantifies...
Ultrafast laser spectroscopy
Ultrafast laser spectroscopy is a spectroscopic technique that uses ultrashort pulse lasers for the study of dynamics on extremely short time scales (attoseconds to nanoseconds). Different methods are...
Ultrafast laser spectroscopy - Wikipedia
Quantum defect
The term quantum defect is ambiguous. Various meanings are discussed below. Characteristic is that the defect deals with the loss on the smallest energy scale of light: that of the quantum.
In las...
Laser-induced thermotherapy
Laser-induced thermotherapy, also referred to as laser ablation, consists of tissue destruction, induced by a local increase of temperature by means of laser light energy transmission.
The irrever...
Fourier domain mode locking
Fourier domain mode locking (FDML) is a laser modelocking technique that creates trains of frequency swept laser pulses.A Fourier domain mode locked laser consists of a ring cavity of length with tun...
Carbon dioxide
Carbon dioxide (chemical formula CO2) is a naturally occurring chemical compound composed of two oxygen atoms each covalently double bonded to a single carbon atom. It is a gas at standard temperature...
Carbon dioxide - Wikipedia
List of laser articles
This is a list of laser topics.
Encyclopedia of Laser Physics and Technology
The Encyclopedia of Laser Physics and Technology is an encyclopedia of laser technology and related areas such as optical fibers and ultrashort pulses, overall covering much of the area of photonics....
Magnetocapacitance
Magnetocapacitance is a property of some dielectric or insulating materials and/or metal-insulator-metal heterostructures that exhibit a change in the value of their capacitance when an external magne...
Femtochemistry
Pump-probe techniquesFemtochemistry is the area of physical chemistry that studies chemical reactions on extremely short timescales, approximately 10 seconds (one femtosecond, hence the name). The...
Attophysics
Pump-probe techniques to measure short time physicsAttophysics is a branch of physics wherein attosecond (10 s) duration pulses of electrons or photons are used to probe dynamic processes in matter ...
Laser pumping
Laser pumping is the act of energy transfer from an external source into the gain medium of a laser. The energy is absorbed in the medium, producing excited states in its atoms. When the number of par...
Laser pumping - Wikipedia
Semiconductor optical gain
Optical Gain is the most important requirement for the realization of a semiconductor laser because it describes the optical amplification in the semiconductor material.This optical gain is due to sti...
Semiconductor optical gain - Wikipedia
Magnetoresistive random access memory
Magnetoresistive random-access memory (MRAM) is a non-volatile random-access memory technology under development since the 1990s. Continued increases in density of existing memory technologies – notab...
Mode volume
In fiber optics, mode volume is the number of bound modes that an optical fiber is capable of supporting. The mode volume M is approximately given by and , respectively for step-index and power-law ...
Gain (laser)
Gain (or amplification) in laser physics is a process, where the medium transfers part of its energy to the emitted electromagnetic radiation, resulting in an increase in laser power. This is the basi...
Ultrashort pulse
In optics, an ultrashort pulse of light is an electromagnetic pulse whose time duration is of the order of a picosecond (10 second) or less. Such pulses have a broadband optical spectrum, and can be c...
Ultrashort pulse - Wikipedia
Frequency comb
A frequency comb is a light source whose spectrum consists of a series of discrete, equally spaced elements. Frequency combs can be generated by a number of mechanisms, including amplitude modulation ...
Frequency comb - Wikipedia
Spinplasmonics
Spinplasmonics is a field of nanotechnology combining spintronics and plasmonics. The field was pioneered by Professor Abdulhakem Elezzabi at the University of Alberta in Canada. In a simple spinplas...
Gaussian beam
In optics, a Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity (irradiance) distributions are well approximated by Gaussian functions. Many lasers emit...
Gaussian beam - Wikipedia