Search results
Results from the WOW.Com Content Network
The first laser, invented by Theodore Maiman in May 1960. Nd:YAG laser: 1.064 μm, (1.32 μm) Flashlamp, laser diode: Material processing, rangefinding, laser target designation, surgery, tattoo removal, hair removal, research, pumping other lasers (combined with frequency doubling to produce a green 532 nm beam). One of the most common high ...
The emitters are usually lasers, making what is termed a laser dazzler. Most of the contemporary systems can be carried by a person, and operate in either the red (a laser diode) or green (a diode-pumped solid-state laser, DPSS) areas of the electromagnetic spectrum. The green laser is chosen for its unique ability to react with the human eye. [5]
In 1971 Maiman founded the Laser Video Corporation, and from 1976 to 1983 he worked as vice president for advanced technology at TRW Electronics (now Northrop Grumman). [3]: 232 He later served as consultant to Laser Centers of America, Inc. (now LCA-Vision Inc.) and director of Control Laser Corporation. Maiman continued his involvement in ...
Green DPSSLs are usually around 20% efficient, although some lasers can reach up to 35% efficiency. In other words, a green DPSSL using a 2.5 W pump diode would be expected to output around 500-900 mW of 532 nm light. In optimal conditions, Nd:YVO 4 has a conversion efficiency of 60%, [1] while KTP has a conversion efficiency of 80%. [2]
Most types of laser are an inherently pure source of light; they emit near-monochromatic light with a very well defined range of wavelengths.By careful design of the laser components, the purity of the laser light (measured as the "linewidth") can be improved more than the purity of any other light source.
Scintillation is also a problem in development of weaponized lasers, such as the airborne laser being developed to intercept intercontinental ballistic missiles. According to an article published on May 3, 2006, in The New York Times , research is being conducted at the laboratory into how to use ground-based lasers to disable satellites ; that ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
English: The Green Book was a travel guide published between 1936 and 1966 that listed hotels, restaurants, bars, gas stations, etc. where Black travelers would be welcome. 21 volumes, 1937 - 1964. According to legal research done by NYPL staff, those 21 volumes have no known US copyright restrictions, and can be used and reused freely.