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- Ultracompact all-optical full-adder and half-adder based on nonlinear plasmonic nanocavities
- Half Adder and Full Adder Circuit
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- Half Adder and Full Adder Circuit

*An Adder is a device that can add two binary digits.*

Half Adder and Full Adder circuits is explained with their truth tables in this article. Design of Full Adder using Half Adder circuit is also shown. Before going into this subject, it is very important to know about Boolean Logic and Logic Gates. An adder is a kind of calculator that is used to add two binary numbers. There are two kinds of adders;. With the help of half adder, we can design circuits that are capable of performing simple addition with the help of logic gates. These are the least possible single-bit combinations.

Ultracompact chip-integrated all-optical half- and full-adders are realized based on signal-light induced plasmonic-nanocavity-modes shift in a planar plasmonic microstructure covered with a nonlinear nanocomposite layer, which can be directly integrated into plasmonic circuits. Tremendous nonlinear enhancement is obtained for the nanocomposite cover layer, attributed to resonant excitation, slow light effect, as well as field enhancement effect provided by the plasmonic nanocavity. Our work is the first to experimentally realize on-chip half- and full-adders based on nonlinear plasmonic nanocavities having an ultrasmall feature size, ultralow threshold power, and high intensity contrast ratio simultaneously. This work not only provides a platform for the study of nonlinear optics, but also paves a way to realize ultrahigh-speed signal computing chips. Nowadays, optical computing which uses photons as information carriers has attracted enormous attention, as it has the ability to support ultrahigh-speed and ultrawide-band information processing [ 1 ]. Ultracompact chip-integrated all-optical logic half- and full-adders are essential and core components in the field of optical computing system.

One of the major challenges of VLSI circuits is heat caused by energy loss. One of the successful solutions to this challenge is to design circuits in a reversible manner. Hence, the design of reversible circuits has attracted the attention of many researchers in the fields of low-power circuits design, DNA computing and quantum computing. Due to the benefits of ternary logic over binary logic such as reducing the complexity of interconnecting circuits, decreasing the occupied surface and reducing the number of quantum cells in quantum circuits, the ternary logic has been proposed for the design of VLSI circuits. In this paper, we first propose a new reversible ternary full-adder, called comprehensive reversible ternary full-adder, using the ternary logic capabilities. In the following, an efficient reversible ternary full-subtractor is provided.

An adder is a device that will add together two bits and give the result as the output. The bits being added together are called the "addends". Adders can be concatenated in order to add together two binary numbers of an arbitrary length. There are two kinds of adders - half adders and full adders. A half adder just adds two bits together and gives a two-bit output.

These circuits have some characteristics like the output of this circuit mainly depends on the levels which are there at input terminals at any time. Some of the combinational circuits are half adder and full adder, subtractor, encoder, decoder, multiplexer, and demultiplexer. An adder is a digital logic circuit in electronics that is extensively used for the addition of numbers. In many computers and other types of processors, adders are even used to calculate addresses and related activities and calculate table indices in the ALU and even utilized in other parts of the processors. These can be built for many numerical representations like excess-3 or binary coded decimal.

Ultracompact chip-integrated all-optical half- and full-adders are realized based on signal-light induced plasmonic-nanocavity-modes shift in a planar plasmonic microstructure covered with a nonlinear nanocomposite layer, which can be directly integrated into plasmonic circuits. Tremendous nonlinear enhancement is obtained for the nanocomposite cover layer, attributed to resonant excitation, slow light effect, as well as field enhancement effect provided by the plasmonic nanocavity. Our work is the first to experimentally realize on-chip half- and full-adders based on nonlinear plasmonic nanocavities having an ultrasmall feature size, ultralow threshold power, and high intensity contrast ratio simultaneously. This work not only provides a platform for the study of nonlinear optics, but also paves a way to realize ultrahigh-speed signal computing chips. Nowadays, optical computing which uses photons as information carriers has attracted enormous attention, as it has the ability to support ultrahigh-speed and ultrawide-band information processing [ 1 ]. Ultracompact chip-integrated all-optical logic half- and full-adders are essential and core components in the field of optical computing system.

These circuits have some characteristics like the output of this circuit mainly depends on the levels which are there at input terminals at any time. Some of the combinational circuits are half adder and full adder, subtractor, encoder, decoder, multiplexer, and demultiplexer. An adder is a digital logic circuit in electronics that is extensively used for the addition of numbers. In many computers and other types of processors, adders are even used to calculate addresses and related activities and calculate table indices in the ALU and even utilized in other parts of the processors. These can be built for many numerical representations like excess-3 or binary coded decimal. Adders are basically classified into two types: Half Adder and Full Adder.

digital circuit built from two logic gates. The half adder adds to one-bit binary numbers (AB). The output is the sum of the two bits (S).

Half Adder and Full Adder circuits is explained with their truth tables in this article. Design of Full Adder using Half Adder circuit is also shown. Before going into this subject, it is very important to know about Boolean Logic and Logic Gates. An adder is a kind of calculator that is used to add two binary numbers. There are two kinds of adders;.

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