The semiconductor laser was invented by Basov et al. in 1961 [11], and is rapidly becoming one of the most widely used laser systems. A conducting p-n junction emits light; it also exhibits gain and can be converted into a laser if the emitted light is fed back to thejunction. Figure...
The semiconductor laser was invented by John L. Hall in 1960. He was a researcher at the Hughes Research Laboratories. John L. Hall invented a semi... Learn more about this topic: Semiconductors & Superconductors: Definition & Properties ...
athere are trees 有树 [translate] a所有螺钉完整 All bolt integrity [translate] aOver twenty years passed after laser was first invented. 在通过的二十年期间,在laser首先被发明了之后。 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利...
(1) becomes highly important and has been attracting a great deal of research attention even before the laser was invented. The control of spatially dependent electrical field amplitude, A(r), has shown many interesting applications. One of the widely studied topics in nano-optics is the ...
Although photo-induced periodic self-organization has been extensively discussed on the surfaces of different materials ( including transparent dielectrics) since the laser was invented in 1960 [71], it was not until 2003 that the first report on ULSN in transparent dielectrics appeared [72]. Up ...
When it was invented, no one knew that it would change modern medicine. But now, with this wonderful tool, doctors can safely perform operations and treatments that were once very dangerous or painful, or simply impossible with regular surgical instruments. (激光是一种能使光束变得像刀一样细...
4.5. This structure, known in the optics community as a Fabry–Pérot interferometer, was not readily recognized as a resonator until the laser was invented. Amplification occurs at each passage since the gain medium amplifies in both directions. Useful light is extracted by making one of the ...
The word laser was originally an acronym standing for Light Amplification by the Stimulated Emission of Radiation. The first laser was invented by Theodore Maiman at the Hughes Research Lab, Malibu, California in 1960. This first simple device was based on the work of Charles Townes at Columbia...
The second innovation involves the heart of the pulsed laser: a specialized mirror made from semiconductor material, known as SESAM (Semiconductor Saturable Absorber Mirror), which was invented by Keller thirty years ago. Unlike conventional mirrors, SESAM’s reflectivity changes based on the intensity...
high energy laserHELgas dynamic laseralkali laserelectric thrustermetastable rare gasSince the first laser was invented,the pursuit of high-energy lasers(HELs)has always been enthusiastic.The first revolution of HELs was pushed by the fusion of laser and aerospace in the 1960s,with the chemi...