An All-Photonic Molecular Amplifier and Binary Flip-flop

2020 ◽  
Author(s):  
Thomas MacDonald ◽  
Timothy Schmidt ◽  
Jonathon Beves
Keyword(s):  
Numerical Modeling ◽  
Visible Light ◽  
Reaction Kinetics ◽  
Memory Storage ◽  
Chemical System ◽  
Initial Composition ◽  
Flip Flop ◽  
Sequential Logic ◽  
Behavior Based

A chemical system is proposed that is capable of amplifying small optical inputs into large changes in internal composition, based on a feedback interaction between switchable fluorescence and visible-light photoswitching. This system would demonstrate bifurcating reaction kinetics under irradiation and reach one of two stable photostationary states depending on the initial composition of the system. This behavior would allow the system to act as a chemical realization of the flip-flop circuit, the fundamental element in sequential logic and binary memory storage. We use detailed numerical modeling to demonstrate the feasibility of the proposed behavior based on known molecular phenomena, and comment on some of the conditions required to realize this system.

scholarly journals An All-Photonic Molecular Amplifier and Binary Flip-flop

2020 ◽  
Author(s):  
Thomas MacDonald ◽  
Timothy Schmidt ◽  
Jonathon Beves
Keyword(s):  
Numerical Modeling ◽  
Visible Light ◽  
Reaction Kinetics ◽  
Memory Storage ◽  
Chemical System ◽  
Initial Composition ◽  
Flip Flop ◽  
Sequential Logic ◽  
Behavior Based

A chemical system is proposed that is capable of amplifying small optical inputs into large changes in internal composition, based on a feedback interaction between switchable fluorescence and visible-light photoswitching. This system would demonstrate bifurcating reaction kinetics under irradiation and reach one of two stable photostationary states depending on the initial composition of the system. This behavior would allow the system to act as a chemical realization of the flip-flop circuit, the fundamental element in sequential logic and binary memory storage. We use detailed numerical modeling to demonstrate the feasibility of the proposed behavior based on known molecular phenomena, and comment on some of the conditions required to realize this system.

An All-Photonic Molecular Amplifier and Binary Flip-flop

2020 ◽  
Author(s):  
Thomas MacDonald ◽  
Timothy Schmidt ◽  
Jonathon Beves
Keyword(s):  
Numerical Modeling ◽  
Visible Light ◽  
Reaction Kinetics ◽  
Memory Storage ◽  
Chemical System ◽  
Initial Composition ◽  
Flip Flop ◽  
Sequential Logic ◽  
Behavior Based

A chemical system is proposed that is capable of amplifying small optical inputs into large changes in internal composition, based on a feedback interaction between switchable fluorescence and visible-light photoswitching. This system would demonstrate bifurcating reaction kinetics under irradiation and reach one of two stable photostationary states depending on the initial composition of the system. This behavior would allow the system to act as a chemical realization of the flip-flop circuit, the fundamental element in sequential logic and binary memory storage. We use detailed numerical modeling to demonstrate the feasibility of the proposed behavior based on known molecular phenomena, and comment on some of the conditions required to realize this system.

scholarly journals Multiple purpose spin transfer torque operated devices

2013 ◽  
Vol 26 (3) ◽  
pp. 227-238
Author(s):  
Thomas Windbacher ◽  
Hiwa Mahmoudi ◽  
Alexander Makarov ◽  
Viktor Sverdlov ◽  
Siegfried Selberherr
Keyword(s):  
Information Processing ◽  
Building Block ◽  
Energy Efficient ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Spin Torque ◽  
Logic Device ◽  
Flip Flop ◽  
Sequential Logic ◽  
Efficient Information

We summarize our recent work on a non-volatile logic building block required for energy-efficient information processing systems. A sequential logic device, in particular, an alternative non-volatile magnetic flip-flop has been introduced. Its properties are investigated and its extension to a very dense shift register is demonstrated. We show that the flip-flop structure inherently exhibits oscillations and discuss its spin torque nano-oscillator properties.

Robust Flip-Flop against Soft Errors for Combinational and Sequential Logic Circuits

2008 ◽  
Author(s):  
T. Uemura ◽  
Y. Tosaka ◽  
H. Matsuyama ◽  
K. Takahisa ◽  
K. Hatanaka
Keyword(s):  
Soft Errors ◽  
Logic Circuits ◽  
Flip Flop ◽  
Sequential Logic

scholarly journals Sequential Logic Circuits Using Spatial Wavefunction Switched (SWS) FETs

2015 ◽  
Vol 24 (03n04) ◽  
pp. 1550011
Author(s):  
Neeraja Jagadeesan ◽  
B. Saman ◽  
M. Lingalugari ◽  
P. Gogna ◽  
F. Jain
Keyword(s):  
Integrated Circuits ◽  
Quantum Well ◽  
Logic Gates ◽  
Digital Integrated Circuits ◽  
Short Channel ◽  
Flip Flop ◽  
Coupled Channels ◽  
Threshold Voltages ◽  
Sequential Logic ◽  
Quantum Well Devices

The spatial wavefunction-switched field-effect transistor (SWSFET) is one of the promising quantum well devices that transfers electrons from one quantum well channel to the other channel based on the applied gate voltage. This eliminates the use of more transistors as we have coupled channels in the same device operating at different threshold voltages. This feature can be exploited in many digital integrated circuits thus reducing the count of transistors which translates to less die area. The simulations of basic sequential circuits like SR latch, D latch and flip flop are presented here using SWSFET based logic gates. The circuit model of a SWSFET was developed using Berkeley short channel IGFET model (BSIM 3).

Photochemical reactions of g-C3N4-based heterostructured composites in Rhodamine B degradation under visible light

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34334-34341 ◽  
Author(s):  
Yumeng Liu ◽  
Junpeng Wang ◽  
Ping Yang
Keyword(s):  
Visible Light ◽  
Reaction Kinetics ◽  
Rhodamine B ◽  
Photochemical Reactions ◽  
Visible Light Driven

Visible-light-driven Ag2O/g-C3N4, Ag/g-C3N4, and BiOBr/g-C3N4 heterostructured photocatalysts revealed different photodegradation reaction kinetics for RhB.

A New Photochromic Diarylethene for Reversible Molecule Switching Properties Based on Pyrrole and Thiophene

2011 ◽  
Vol 284-286 ◽  
pp. 2239-2242
Author(s):  
Shang Hua He ◽  
Gang Liu ◽  
Ren Jie Wang
Keyword(s):  
Visible Light ◽  
Reaction Kinetics ◽  
Absorption Maximum ◽  
Uv Light ◽  
Amorphous Film ◽  
Pmma Film ◽  
Reversible Cyclization ◽  
Hexane Solution

A new unsymmetrical photochromic diarylethene bearing a pyrrole and a thiophene aryl unit 1-(5-cyan-1,2-dimethylpyrrole)-2-(5-aldehyde-2-butylthiophene) perfluorocyclopentene(1a) has been synthesized. Its properties, including photochromism and kinetics were investigated in detail. It underwent reversible cyclization and cycloreversion reactions upon alternating with UV and visible light both in solution and in PMMA film. The results showed that this compound exhibited reversible photochromism, changing from colorless to blue upon irradiation with UV light, in which absorption maximum were observed at 649 nm and 583 nm in solution and PMMA amorphous film, respectively. This new photochromic system also exhibited remarkable reaction kinetics in hexane solution.

Implementation of 4X4 Embedded Logic Memory for High Speed Applications

2017 ◽  
Vol 2 (4) ◽  
Author(s):  
Sudhanshu Janwadkar ◽  
Mahesh T. Kolte
Keyword(s):  
Power Consumption ◽  
Data Processing ◽  
High Speed ◽  
Propagation Delay ◽  
Memory Storage ◽  
Access Time ◽  
Complex Data ◽  
Flip Flop ◽  
Chip Area ◽  
Parallel Memory

With increasing complexity of data processing applications, there is a huge demand for high storage compact memories. It is highly desirable that memories have low access time and consume less power. Processing of data along with parallel memory storage has proved to be more efficient than serial operation. One such approach to paralleling processing is the concept of Embedded Memories. By inserting the logic within architecture of the flip-flop, the chip area can be reduced. Also, through means of Conditional Shut-down, the power consumption can be reduced. In this paper, we propose a modified dual dynamic hybrid node Embedded Logic D-Flip flop architecture. The work is based on DSCH 3.5 and Microwind 3.5 tools. We have simulated the design for 90nm, 65nm and 45nm technology respectively. Compared to the previous architectures, we have obtained a reduction in propagation delay by 15.38% and reduction in power consumption by 32.69%. Further, we have designed a 4X4 memory using our proposed Embedded Logic Flip Flop. The embedded memory finds applications in highly complex data processing applications, scan test circuits etc

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