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...
Laser science - Wikipedia
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...
Femto-photography
Femto-photography is a term used to describe a technique for recording the propagation of ultrashort pulses of light through a scene at a very high speed. A femto-photograph is equivalent to an optica...
Di-positronium
Di-positronium, or dipositronium, is a molecule consisting of two atoms of positronium. It was predicted to exist in 1946 by John Archibald Wheeler, and subsequently studied theoretically, but was no...
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
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...
Electric charge
Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative. Positiv...
Electric charge - Wikipedia
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...
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....
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 ...
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...
Positronium
Positronium (Ps) is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium. The system is unstable: the two particles annihila...
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
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
Neodymium-doped yttrium orthovanadate
Neodymium-doped yttrium orthovanadate (Nd:YVO4) is a crystalline material formed by adding neodymium ions to yttrium orthovanadate. It is commonly used as an active laser medium for diode-pumped sol...
Neodymium-doped yttrium orthovanadate - Wikipedia
Phase qubit
The phase qubit is a superconducting device based on the superconductor-insulator-superconductor (SIS) Josephson junction, designed to operate as a quantum bit, or qubit. The phase qubit is closely re...
Self-pulsation
Self-pulsation is a transient phenomenon in continuous-wave lasers. Self-pulsation takes place at the beginning of laser action. As the pump is switched on, the gain in the active medium rises and e...