Abstract

-------------------------------------------------------ABSTRACT-------------------------------------------------------------The Half Power Diameter (HPD) which is also called Full –Width at Half-Maximum (FWHM) is being used in various disciplines where the optical instruments responses are degraded very much due to various factors like, atmospheric turbulence, aberrations, vibrations, etc,-----. In the present paper, we have studied the FWHM or the HPD of an optical system with a set of Higher-Order parabolic filters. These filters are known to be dependence of increasing the resolving power of an optical system. Dependence of FWHM or the HPD on various parameters of the super resolving filters under consideration by us has been found out.

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