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...
Transverse mode
A transverse mode of a beam of electromagnetic radiation is a particular electromagnetic field pattern of radiation measured in a plane perpendicular (i.e., transverse) to the propagation direction of...
Transverse mode - Wikipedia
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...
Nd:YCOB
Nd-doped YCOB (Nd:YCa4O(BO3)3) is a nonlinear optical crystal, which is commonly used as an active laser medium. It can be grown from a melt by the Czochralski technique. It belongs to the monoclinic ...
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...
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....
Quantum wire
In condensed matter physics, a quantum wire is an electrically conducting wire in which quantum effects influence the transport properties.
If the diameter of a wire is sufficiently small, electro...
Quantum electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where ful...
Quantum electrodynamics - Wikipedia
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
Superlattice
A superlattice is a periodic structure of layers of two (or more) materials. Typically, the thickness of one layer is several nanometers. It can also refer to a lower-dimensional structure such as an ...
Superlattice - Wikipedia
Power scaling
Power scaling of a laser is increasing its output power without changing the geometry, shape, or principle of operation. Power scalability is considered an important advantage in a laser design.Usuall...
Power scaling - Wikipedia
Colossal magnetoresistance
Colossal magnetoresistance (CMR) is a property of some materials, mostly manganese-based perovskite oxides, that enables them to dramatically change their electrical resistance in the presence of a ma...
Spatial filter
A spatial filter is an optical device which uses the principles of Fourier optics to alter the structure of a beam of coherent light or other electromagnetic radiation. Spatial filtering is commonly u...
Output coupler
An output coupler (OC) is a partially reflective mirror used in lasers to extract a portion of the laser beam from the optical resonator.Lasers operate by reflecting light between two or more mirrors ...
Output coupler - 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...
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...