Articles written in Pramana – Journal of Physics
Volume 96 All articles Published: 14 September 2022 Article ID 0174 Research Article
High-speed optimisation of an all-optical half adder using a T-shaped photonic crystal waveguide with an improved contrast ratio
MADDALA RACHANA SANDIP SWARNAKAR NOONEPALLE HARI PRIYA SABBI VAMSHI KRISHNA PRABHA SHANKAR SHARMA SANTOSH KUMAR
In digital the detection techniques, the half adder is a component of electronic systems that performs calculations faster than the other logic gates.
This article focusses on an all-optical half adder logic gate using a two dimensional T-shaped photonic crystal waveguide and silicon in an air medium.
The half adder design is predicated on the concept of constructive (in-phase) and destructive (out-of-phase) interferences. The high-intensity output
is achieved by carefully selecting the lattice constant, rod radius and refractive index of the half adder structure. The effectiveness of the half adder is
investigated using finite-difference time-domain and plane-wave expansion techniques at 1.55
Volume 97, 2023
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