3 papers
cond-mat.str-el2026
Frequency-dependent criticality in optical properties of the Drude metals, including plasmas and seawater
Bikram Keshari Behera, Rhitabrata Bhattacharyya, Shyamal Biswas
We have analytically determined attenuation constant, phase constant, and reflectivity of Drude metals over the entire frequency range () for an incident electromagneti…
physics.gen-ph2021
Explicit derivation of the Fraunhofer diffraction formula for oblique incidence
Shyamal Biswas, Rhitabrata Bhattacharyya, Saugata Bhattacharyya
We have analytically explored the Rayleigh-Sommerfeld scalar diffraction for oblique incidence. We have explicitly derived the Fraunhofer diffraction formulae for oblique incidence…
physics.optics2020
Rayleigh-Sommerfeld scalar diffraction by apertures moving at relativistic speeds
Rhitabrata Bhattacharyya, Saugata Bhattacharyya, Shyamal Biswas
We have analytically obtained the theoretical results for the Rayleigh-Sommerfeld (R-S) scalar diffraction by apertures, such as single-slit, double-slit, grating and circular aper…