Generalized treatment of skew-cosh-Gaussian lasers for bifocal terahertz radiation |
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Institution: | Plasma Waves and Particle Acceleration Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi – 110 016, India |
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Abstract: | A generalized treatment of skew-cosh-Gaussian lasers with skewness parameters n and s is provided for obtaining bifocal terahertz radiation in a realistic plasma having electron-neutral collisions. In order to find and control the focusing of the radiation, a relation is established between the position of the peak of the radiation field and the parameters n and s. The significant role of these parameters in getting bifocal radiation or its conversion to unifocal radiation (or vice-versa) with a proposal for enhanced efficiency of the scheme is discussed in detail for its medical applications. |
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Keywords: | Bifocal to unifocal terahertz conversion Skew-cosh-Gaussian lasers Medical application Role of skewness parameters Electron-neutral collisions |
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