All Optical Logic Gates Based on Two Dimensional Plasmonic Waveguides with Nanodisk Resonators

Abstract

In this paper, we propose, analyze and simulate the performances of some new plasmonic logic gates in two dimensional plasmonic waveguides with nanodisk resonators, using the numerical method of finite difference time domain (FDTD). These gates, including XOR, XNOR, NAND, and NOT, can provide the highly integrated optical logic circuits. Also, by cascading and combining these basic logic gates, any logic operation can be realized. These devices can be utilized significantly in optical processing and telecommunication devices.

High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities

“…As we know, there has been remarkable progress in developing plasmonic nanostructures, such as surface-enhanced Raman spectroscopy [8], bio/chemical sensors [9,10,11,12], optical waveguides [13,14], lasers [15], absorbers [16], reflectors [17,18], and logic devices [19,20]. Recently, much attention has been given to plasmonic Fano resonances [21,22,23,24], which are classical analogues of the Fano resonance of a quantum system interfered with the discrete excited state of an atom with a continuous state.…”

Plasmonic circuits for manipulating optical information

“…A novel plasmon filter was created using two wires of different materials joined together that provided a large electric permittivity mismatch resulting in unidirectional propagation [83]. Additive logic operations have been proposed and modeled with such circuits or their variants [84][85][86][87][88][89][90]. There have been demonstrations of logic functions such as a NOR gate built from OR and NOT gates [91]; XNOT, XOR, and NOT gates using an air slot etched in gold on silicon dioxide [92] and an XOR gate [93]; an OR gate [94]; a logic comparator [95]; NOT, AND, OR, XOR [96]; a halfadder [97]; demultiplexers [28]; binary encoders [26,98]; and discriminators [27].…”

Performance Analysis of a High-Speed All-Optical Subtractor using a Quantum-Dot Semiconductor Optical Amplifier-Based Mach-Zehnder Interferometer

“…All-optical processing has many applications, such as wavelength conversation, add-drop multiplexing, regeneration clock recovery, simple bit-pattern recognition, address recognition, signal processing, and packet synchronization [1][2][3]. Subtraction is one of the most important operations in Boolean functions and is used in binary subtraction, binary counting, arithmetic logic units, encryption, and decryption in security networks.…”