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Gas, Chemical, Free Electron, and X-Ray Lasers

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Abstract

In this chapter, the most important types of lasers involving low density active media are considered, namely gas, chemical and free electron lasers. Some considerations on X-ray lasers involving highly ionized plasmas will also be presented. The main emphasis, again, is to stress the physical behavior of the laser and to relate this behavior to the general concepts developed in the previous chapters. Some engineering details are also presented with the main intention again of providing for a better physical insight into the behavior of the particular laser. To complete the picture, some data relating to laser performances (e.g., oscillation wavelength(s), output power or energy, wavelength tunability, etc.) are also included to help provide some indication of the laser’s field of application. For each laser, after some introductory comments, the following items are generally covered: (1) Relevant energy levels; (2) excitation mechanisms; (3) characteristics of the laser transition(s); (4) engineering details relating to the laser structure(s); (5) characteristics of the output beam; (6) applications.

Keywords

Vibrational Level Laser Action Population Inversion Amplify Spontaneous Emission Lower Laser Level 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Dipto. FisicaPolitecnico di MilanoMilanoItaly

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