Susanta Kumar SamantaMIDNAPORE COLLEGE · Department of Physics
Susanta Kumar Samanta
Master of Science
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10
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Publications
Publications (10)
An analytical and a numerical study on coupling in microstrip transmission line (MTL) are reported for different split-gap orientations of a single gap square-shaped split-ring resonator (SRR). Taking both magnetic and electric couplings and adopting Lagrangian formulation for this coupled system, mathematical relations are found for each orientati...
An analytical model for a square split ring resonator (S-SRR) having a single split-gap is considered here to reliably estimate the fundamental resonance frequency of the ring. An S-SRR is assumed to be equivalent to a series-resonant LC loop. The approximate formulas for equivalent self-inductance and total capacitance of the ring are derived sepa...
A simple laboratory method to measure junction capacitance of a Schottky barrier diode has been proposed from the measurement of cut off frequency of a high pass filter. Existence of series and shunt resistances associated with depletion capacitance may be ignored in some special conditions. Theoretical analysis for the measurement of junction capa...
A theoretical model for all-optical modulation format conversion from amplitude-shift keying (ASK) to phase-shift keying (PSK) has been proposed using a reflective vertical cavity semiconductor saturable absorber (R-VCSSA). The R-VCSSA is a nonlinear device. The phase response of the device has been studied numerically with different input intensit...
A theoretical model for all-optical modulation format conversion from amplitude-shift keying (ASK) to phase-shift keying (PSK) has been proposed using a reflective vertical cavity semiconductor saturable absorber (R-VCSSA). The R-VCSSA is a nonlinear device. The phase response of the device has been studied numerically with different input intensit...
A long-wavelength-operation based phase-bistabilty and phase-locking patterns is described analytically and numerically in a nonlinear Fabry-Perot (F–P) cavity packed with fast semiconductor saturable absorber. With incident power thermo-optic effects of absorbing film and cavity heating can offer a generation of red-shifted resonances due to incre...
