Optical half subtractors are required for designing any optical computation system. Operation speed and the on/off contrast ratios very important characteristics logic device. A novel structure composed of three nonlinear ring resonators some waveguides used proposed subtractor with improved operation ratio. The simulation results show that rise time this is 1.5 ps. Also B D 13.7 dB 14.5 respec...

In this paper we are presenting a Half-Subtractor using Adaptive Voltage Level (AVL) technique consuming less power than the conventional one .The main objective is to design that half subtractor using either of the two adaptive voltage level(AVL) techniques to reduce the sub threshold leakage current which plays a very important role in the reduction of power dissipation. We can bring down the...

Diverse advanced logic circuits are fabricated to implement arithmetic functions based on a simple and single molecular beacon platform, including half adder, half subtractor, full adder, full subtractor, and a digital comparator. Dual fluorescence outputs are generated in parallel and a constant threshold value is set to build all the logic circuits. The developed enzyme-free DNA system provid...

This work demonstrates two DNA-based logic circuits that behave as a half-adder and a half-subtractor. A half-adder is composed of an AND gate and an XOR gate, whereas a half-subtractor consists of an INH gate and an XOR gate. The proposed designs are inspired by molecular beacons.

quantum-dot cellular automaton (qca) is a novel nanotechnology with a very different computational method in compared with cmos, whereas placement of electrons in cells indicates digital information. this nanotechnology with specifications such as fast speed, high parallel processing, small area, low power consumption and higher switching frequency becomes a promising candidate for cmos technol...

In this paper, the possibility of using a silicon waveguide based microring resonator as a nonlinear all-optical switch is described under low power operation through a two-photon absorption effect. All-optical multiplexer/demultiplexer scheme based on two cascaded microring resonators has been proposed and described. The proposed circuits require smaller number of ring resonators and a single ...

In present day skill, designing of low power systems has emerged as one of the vital theme of electronic industries due to the point that, power consumption is drawing much of the absorption in any very large scale integration (VLSI) chip design. Design of low power circuit for high performance is the necessary main concern of VLSI technique. This paper presents designing of Half Subtractor usi...

Reversible Logic is becoming more and more prominent technology having its applications inLow Power CMOS, Quantum Computing, Nanotechnology, and Optical Computing. Reversibility plays an important role when energy efficient computations are considered. In this paper, Reversible eight-bit Parallel proposed. In all the three design approaches, the full Adder and Subtractors are realized in a sing...

In recent years, Reversible Logic is becoming more and more prominent technology having its applications in Low Power CMOS, Quantum Computing, Nanotechnology, and Optical Computing. Reversibility plays an important role when energy efficient computations are considered. In this paper, Reversible eight-bit Parallel Binary Adder/Subtractor with Design I, Design II and Design III are proposed. In ...