PPT-Free-Electron Lasers Sven Reiche, PSI

I Motivation 1 st Generation Synchrotron radiation from bending magnets in high energy physics storage rings 2 nd Generation Dedicated storage rings for synchrotron radiation 3 rd Generation. Section . 31-7. Physics 1161: . . Lecture 24. Photons with energy in approx range . 100eV. . to. . 100,000eV. .. This large energy means they go right through you (except for your bones).. What are the wavelengths?. Usually . electrical to optical converters. 1.Continuum . sources. a. . Incandescent. . sources. Blackbody. . sources. Tungsten . filament. . sources. b. ASE (. EDFAs. ). c. . LEDs. 2. Sources of line spectra. Based on Dissipative Processes. F. W. Wise. Department of Applied Physics. Cornell University. Andy Chong. Will Renninger. Khanh Kieu. Simon Lefrancois. Hannah Liu. Brandon Bale. Edwin Ding. Nathan Kutz. Smaller than a bird, . . . as . fast as . light, . . . bright . as the sun. What is a laser? . The acronym is also the definition - . L. ight . A. mplification by . S. timulated . E. mission of . The tunable laser could be set to any desired wavelength either in the factory or in the field by a software command.. The performance parameters are:. Power. Spurious mode suppression. Wavelength stability. or . color, in a given spectral range. .. As such, . these . quantum devices have found numerous applications in many diverse fields. .. In particular, tunable lasers have played a crucial and sustained role in advancements of fundamental physics and science. stemler. , Andy . Barrus. , Sean . Osinski. Overview. Definition of laser and operation. Quantitative description of laser. Various types of lasers and applications.. Laser—Light Amplification by Stimulated Emission of Radiation. J. Wu. FEL Physics Group. Beam Physics Department. Oct. 26, 2010. Accelerator Research Division Status Meeting. October 26, 2010. ARD Status meeting. jhwu@slac.stanford.edu. J. Wu, FEL Physics Group. Quantum well or quantum wire confinements give the electron at least one degree of freedom Although this kind of confinement leads to quantization of the electron spectrum which changes the density of He-Ne Laser. Laser Types. According to the . active material. : . solid-state, liquid, gas, . excimer. or semiconductor lasers. .. Gas: . HeNe. laser, . excimer. lasers, CO. 2. lasers. Liquid:. ionization of . Heium. M. Ya. Amusia. 1. , . 2. , E. G. Drukarev . 1,3. , E. Z. Liverts . 1. 1. ). Racah. Institute, Hebrew University, Jerusalem. 2. ). Physical-Technical. Institute, St. Petersburg. Bianca . Cilento. What is a laser?. A laser is a device that emits light through the process of stimulated emission. LASER is actually an acronym for Light Amplification by the Stimulated Emission of Radiation. . the active medium is glass denatured by Neodymium ions(Nd +3) (active ions) with doping rate up to (6%). The color of the crystal is purple (8). dimensions of the crystal are from a few microns to (2 cm) length and the diameter (6-10 m). The Pumping using the flash lamp). with an efficiency not exceeding (1.5%) or using a semiconductor laser with an efficiency of up to (70%). It works with a system of quadrupole levels and it dose need good cooling. Chain Free Radical Reactions. Nonchain. . Free Radical . Reactions. Miscellaneous . Free Radical Reactions. . Chapter Five. Free Radicals. Properties of free radicals. 1. One or more unpaired electrons..