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Keyword: Double

Double critical coupled ring resonator-based add–drop filters

AbstractIn this paper, we introduced double-critical coupling condition (DCCC) for lossy mode couplers of the add–drop resonator to achieve the desirable and tunable signals required for optical communication and photonics sensors applications. The performance of add–drop resonator under double-critical condition is simulated and analyzed. Some equations were derived for optical parameters including full width at […]

Finite element formulation for the free vibration analysis of embedded double-walled carbon nanotubes based on nonlocal Timoshenko beam theory

AbstractThe present paper is concerned with the free vibration analysis of double-walled carbon nanotubes embedded in an elastic medium and based on Eringen’s nonlocal elasticity theory. The effects of the transverse shear deformation and rotary inertia are included according to the Timoshenko beam theory. The governing equations of motion which are coupled with each other […]