lasing device
1Laser — For other uses, see Laser (disambiguation). United States Air Force laser experiment …
2Q-switching — Q switching, sometimes known as giant pulse formation, is a technique by which a laser can be made to produce a pulsed output beam. The technique allows the production of light pulses with extremely high (gigawatt) peak power, much higher than… …
3nanotechnology — /nan euh tek nol euh jee, nay neuh /, n. any technology on the scale of nanometers. [1987] * * * Manipulation of atoms, molecules, and materials to form structures on the scale of nanometres (billionths of a metre). These nanostructures typically …
4Liquid crystal — Schlieren texture of liquid crystal nematic phase Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal.[1] For instance, an LC may flow like a liquid, but its… …
5Coherent 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 …
6Hybrid 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 …
7Heterojunction — A heterojunction is the interface that occurs between two layers or regions of dissimilar crystalline semiconductors. These semiconducting materials have unequal band gaps as opposed to a homojunction. It is often advantageous to engineer the… …
8Gain-switching — is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, of the order of picoseconds (10 12s).In a semiconductor laser, the optical pulses are generated by injecting a large number of carriers… …
9Adi Bulsara — Infobox Scientist box width = 300px name = Adi Bulsara image size = 150px caption = Ardeshir Adi Ratan Bulsara birth date = birth date|1951|5|15 birth place = Bombay, India death date = death place = residence = United States citizenship =… …
10Directed-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… …
