Aranga Raju

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The Method of Moments (MoM) when applied for scattering analysis of a large body, generates a dense matrix. In this paper, a sparse matrix is generated from the dense matrix. The thresholding elemental method is applied to obtain a sparse matrix, by assuming that the electromagnetic interaction between sufficiently far away elements is zero. This technique(More)
In this paper, a novel method of partial coating to reduce the Radar Cross Section (RCS) of a complex shaped perfectly electrically conducting (PEC) aircraft, of electrically large size, is proposed. The physical optics (PO) method is used to identify the hot spots of the PEC aircraft. An empirical procedure is then proposed to coat partial contiguous areas(More)
Polarized Raman spectroscopy has been employed to characterize transverse sections of graphene monolayers upon both a copper substrate and a polyester film. Well-defined Raman spectra can be obtained from the one atom thick transverse sections of graphene because of the strong resonance Raman scattering. The intensity of Raman 2D band (I2D) is independent(More)
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