(PDF) Lasers and laser applications - ResearchGate
The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation ".. The first laser was built in 1960 by Theodore H.. Maiman at Hughes Research Laboratories ..
受激辐射_百度百科簡- laser light amplification by stimulated emission of radiation ,受激发射的光放大（英语：Light Amplification by Stimulated Emission of Radiation）缩写是“LASER”。 受激发射概念是由阿尔伯特·爱因斯坦在他1917年发表的论文《关于辐射的量子理论》中提出的；大约10年后，英国著名物理学家、剑桥大学教授保罗·狄拉克首次实验证明受激发射的存在。Light Amplification by Stimulated Emission of Radiation | PD .. 1484800 - View presentation slides online.. Ssffc What is Laser? Light Amplification by Stimulated Emission of Radiation • A device produces a coherent beam of optical radiation by stimulating electronic, ionic, or molecular transitions to higher energy levels • When they return to lower energy levels by stimulated emission, they emit energy..
The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation ".. The first laser was built in 1960 by Theodore H.. Maiman at Hughes Research Laboratories ..
受激发射（英語： Stimulated emission ）是雷射的主要光源。 受激发射的光放大（英語： Light Amplification by Stimulated Emission of Radiation ）縮寫是“LASER”。 受激发射概念是由阿尔伯特·爱因斯坦在他1917年發表的論文《關於輻射的量子理論》中提出的；大約10年後，英國著名物理學家、劍橋大學教授保羅 ..
The full form of LASER is Light Amplification by Stimulated Emission of Radiation.. LASER is a type of electromagnetic machine that can emit light that is an Electromagnetic Radiation.. Such lights are both coherent and very weak.. They are produced by a method named as optical amplification..
Title Lasers (Light Amplification by Stimulated Emission of Radiation) Author Tang Wai In Last modified by witang Created Date 1/17/2001 12:02:44 PM Document presentation format 如螢幕大小 Other titles Tahoma 新細明體 Times New Roman Wingdings Verdana ..
As suggested by the acronym, stimulated emission is crucial for laser operation.. An atomic system in which the population of the excited level () is larger than that of the lower level , is said to exhibit population inversion (see figures 7..1 (a) and (b)).. It turns out that this medium can act as an optical amplifier (figure 7..1 (c))..
The word laser is an acronym for light amplification by stimulated emission of radiation.. However, the term laser generally refers to a laser oscillator, which generates laser light without an input light wave.. A device that amplifies a laser beam by stimulated emission is called a laser amplifier.. Laser light is generally highly collimated ..
The word LASER is an acronym for Light Amplification by Stimulated Emission of Radiation.. Laser is a device that amplifies or increases the intensity of light and produces highly directional light.. Laser not only amplifies or increases the intensity of light but also generates the light.. Laser emits light through a process called stimulated ..
激光（英语：Light Amplification by Stimulated Emission of Radiation，缩写为LASER，或laser），港澳地区称“激光”、“雷射”，台湾省称“雷射”，是指通过受激辐射而产生，放大的光，即受激辐射的光放大。特点是单色性极好，发散度极小，亮度（功率）可以达到很高。产生激光需要“激发来源”，“增益 ..
The word laser is an acronym for light amplification by stimulated emission of radiation.. However, the term laser generally refers to a laser oscillator, which generates laser light without an input light wave.. A device that amplifies a laser beam by stimulated emission is called a laser amplifier.. Laser light is generally highly collimated ..
Lasers can produce radiation at many wavelength and frequencies.. Intense light source and electron currents can activate gases, semiconductors and ions in solid material to produce coherent laser light.. The lasers can be pulsed or continuous.. The former produces extremely high peaks of power, the latter is highly stable and gives pure emission..
Download Citation | On Jan 1, 2008, George P.. Rédei published Laser (light amplification by stimulated emission of radiation) | Find, read and cite all the research you need on ResearchGateThe ..
As suggested by the acronym, stimulated emission is crucial for laser operation.. An atomic system in which the population of the excited level () is larger than that of the lower level , is said to exhibit population inversion (see figures 7..1 (a) and (b)).. It turns out that this medium can act as an optical amplifier (figure 7..1 (c))..
Abstract.. Utilisation of monochromatic (only one wavelength) polarised (undulation only on one plane) coherent (vibration in one phase) light for medical treatment.. Only so-called “low level lasers” with power of 40–200 mW are used in physiotherapy.. Depending on the radiation technique, devices are divided into: 1.. spot radiation.. 2..
受激发射的光放大（英语：Light Amplification by Stimulated Emission of Radiation）缩写是“LASER”。 受激发射概念是由阿尔伯特·爱因斯坦在他1917年发表的论文《关于辐射的量子理论》中提出的；大约10年后，英国著名物理学家、剑桥大学教授保罗·狄拉克首次实验证明受激发射的存在。
Laser equipment produces electromagnetic radiation in the infrared and visible spectrum by stimulation of atoms.. The laser beam does not diffuse like that of an electric light.. Cite this entry as: (2008) Laser (light amplification by stimulated emission of radiation).. ..
受激发射（英語： Stimulated emission ）是雷射的主要光源。 受激发射的光放大（英語： Light Amplification by Stimulated Emission of Radiation ）縮寫是“LASER”。 受激发射概念是由阿尔伯特·爱因斯坦在他1917年發表的論文《關於輻射的量子理論》中提出的；大約10年後，英國著名物理學家、劍橋大學教授保羅 ..
激光是20世纪以来继核能、电脑、半导体之后，人类的又一重大发明，被称为“最快的刀”、“最准的尺”、“最亮的光”。英文名Light Amplification by Stimulated Emission of Radiation，意思是“通过受激辐射光扩大”。激光的英文全名已经完全表达了制造激光的主要过程。激光的原理早在 1916年已被著名的 ..
The word laser is an acronym for light amplification by stimulated emission of radiation.. However, the term laser generally refers to a laser oscillator, which generates laser light without an input light wave.. A device that amplifies a laser beam by stimulated emission is called a laser amplifier.. Laser light is generally highly collimated ..
Lasers can produce radiation at many wavelength and frequencies.. Intense light source and electron currents can activate gases, semiconductors and ions in solid material to produce coherent laser light.. The lasers can be pulsed or continuous.. The former produces extremely high peaks of power, the latter is highly stable and gives pure emission..
激光（英语：Light Amplification by Stimulated Emission of Radiation，缩写为LASER，或laser），港澳地区称“激光”、“雷射”，台湾省称“雷射”，是指通过受激辐射而产生，放大的光，即受激辐射的光放大。特点是单色性极好，发散度极小，亮度（功率）可以达到很高。产生激光需要“激发来源”，“增益 ..
The word LASER is an acronym for Light Amplification by Stimulated Emission of Radiation.. Laser is a device that amplifies or increases the intensity of light and produces highly directional light.. Laser not only amplifies or increases the intensity of light but also generates the light.. Laser emits light through a process called stimulated ..
Laser equipment produces electromagnetic radiation in the infrared and visible spectrum by stimulation of atoms.. The laser beam does not diffuse like that of an electric light.. Cite this entry as: (2008) Laser (light amplification by stimulated emission of radiation).. ..
Lasers in Chemistry Lasers being monochromatic, with short pulse durations, and high intensity allow detailed studies in chemical dynamics.. Can do very fast kinetic studies – femtosec (10-15 s) studies – “look” at bond dissociation, bond formation, study kinetics
Light Amplification by Stimulated Emission of Radiation (laser) is a coherent, convergent, and monochromatic beam of electromagnetic radiation.. Various laser sources have been applied in LAM to preheat the workpiece including CO2 lasers, solid state lasers, and excimer lasers.. The CO 2 laser has a high average beam power, better efficiency, and ..