Browsing by Issue Date

Browsing by Issue Date

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  • Prabhakar, Shashi (Indian Institute of Technology, Gandhinagar, 2014)
    Optical vortices are singularities in the phase distribution of a light field. At the phase singularity, real and imaginary parts of the field vanish simultaneously and associated wavefront becomes helical. For an optical ...
  • Laskar, Fazlul I. (Indian Institute of Technology, Gandhinagar, 2014)
    The upper atmosphere of the Earth is influenced by incoming solar radiation (UV, EUV, and X-rays) and by secondary effects like waves from the lower atmosphere. The EUV radiation is absorbed above about 100 km altitude of ...

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