lasing cavity
21Maser — For other uses, see Maser (disambiguation). A hydrogen radio frequency discharge, the first element inside a hydrogen maser (see description below) A maser is a device that produces coherent electromagnetic waves through amplification by… …
22Laser cutting — process on a sheet of steel. CAD (top) and stainless steel laser cut part (bottom) Laser cutting is a technology that uses a laser to cut materials, an …
23Hybrid silicon laser — A hybrid silicon laser is a semiconductor laser fabricated from both silicon and group III V semiconductor materials. The hybrid silicon laser was developed to address the lack of a silicon laser to enable fabrication of low cost, mass producible …
24Coherent perfect absorber — A Coherent perfect absorber (CPA), or anti laser, is a device which absorbs coherent light and converts it to some form of internal energy such as heat or electrical energy.[1][2] It is the time reversed counterpart of a laser.[3] The concept was …
25Ti-sapphire laser — Ti:sapphire lasers (also known as Ti:Al2O3 lasers, titanium sapphire lasers, or simply Ti:sapphs) are tunable lasers which emit red and near infrared light in the range from 650 to 1100 nanometers. These lasers are mainly used in scientific… …
26Output coupler — Principal components of a laser: 1. Active laser medium 2. Laser pumping energy 3. High reflector 4. Output coupler 5. Laser beam An output coupler (OC) is a partially reflective mirror used in lasers to extract a portion of the laser beam from… …
27Laser diode rate equations — The laser diode rate equations model the electrical and optical performance of a laser diode. This system of ordinary differential equations relates the number or density of photons and charge carriers (electrons) in the device to the injection… …
28Directed-energy weapon — This article is about practical experiments with energy weapons. For fictional uses, see raygun. Humvee with Active Denial System mounted A directed energy weapon (DEW) emits energy in an aimed direction without the means of a projectile. It… …
29Laser pointer — A laser pointer is a portable, pen sized laser designed to be held in the hand, and most commonly used to project a point of light to highlight items of interest during a presentation. Most laser pointers have low enough power that the projected… …
30Chemical laser — A chemical laser is a laser that obtains its energy from a chemical reaction. Chemical lasers can achieve continuous wave output with power reaching to megawatt levels. They are used in industry for cutting and drilling. Common examples of… …
