Family of optoelectronic photocurrent reconfigurable universal (or multifunctional) logical elements (OPR ULE) on the basis of continuous logic operations (CLO) and current mirrors (CM)

Krasilenko, Vladimir G.; Ogorodnik, Konstantin V.; Nikolskyy, Aleksandr I.; Dubchak, Viktor

doi:10.1117/12.894483

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…[ 3–5 ] Optoelectronic logic devices are important elements in optoelectronic circuits, which perform logical processing with optical signals and electrical signals. [ 6–10 ] Compared to traditional electrical logic devices, optoelectronic logic devices achieve both fast operating speed and large bandwidth, [ 11 ] and the non‐interference between the optical input and the electrical input ensures parallel information detection and processing. [ 12–14 ]…”

Section: Introductionmentioning

confidence: 99%

Gate‐Switchable Photovoltaic Effect in BP/MoTe₂ van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics

Zhao

et al. 2020

Advanced Optical Materials

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Recently, van der Waals heterojunction based on 2D materials emerges as a promising technology for optoelectronic integrated circuits. Here, a self‐driven optoelectronic logic device is demonstrated based on vertically stacked van der Waals heterojunction of black phosphorus and molybdenum telluride. Through the electrostatic doping by gating, the heterojunction is dynamically tuned to isotype (p‐P and n‐N) and anisotype (p‐N) while the built‐in electric field in the heterojunction is greatly changed. Consequently, the photovoltaic effect in the heterojunction is switchable by the gate voltage, enabling a novel self‐driven optoelectronic logic element without the need of external biasing. This optoelectronic logic device shows promising characteristics of output dark current <1 pA, on/off current ratio >105, switching time <10 µs, broadband operation in the spectral range from 400 to 1600 nm, and linearly adjustable output current. The results may open up unprecedented opportunities to employ van der Waals heterojunctions for exploring logic optoelectronics with high performance and low power consumption.

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Section: Introductionmentioning

confidence: 99%

Gate‐Switchable Photovoltaic Effect in BP/MoTe₂ van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics

Zhao

et al. 2020

Advanced Optical Materials

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“…The experiments in work [9] show great promise of the proposed methods and models of self-learningrecognition of images, including multilevel images. But for their work in real time, taking into account the large requirements for performance and the amount of calculations, it is necessary to have appropriate high-performance and energy-efficient arrays with parallel principles of operation and picture input-outputs, whose design was partially considered in papers [15][16][17][18][19][20][21][22]. And here we will offer a new structure.…”

Section: Presentation Of the Main Material Research Resultsmentioning

confidence: 99%

Design and Simulation of Neuron-Equivalentors Array for Creation of Self-Learning Equivalent-Convolutional Neural Structures (Slecns)

Krasilenko¹,

YURCHUK²,

Nikitovich³

2021

Herald KhmNU

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In the paper, we consider the urgent need to create highly efficient hardware accelerators for machine learning algorithms, including convolutional and deep neural networks (CNN and DNNS), for associative memory models, clustering, and pattern recognition. We show a brief overview of our related works the advantages of the equivalent models (EM) for describing and designing bio-inspired systems. The capacity of NN on the basis of EM and of its modifications is in several times quantity of neurons. Such neural paradigms are very perspective for processing, clustering, recognition, storing large size, strongly correlated, highly noised images and creating of uncontrolled learning machine. And since the basic operational functional nodes of EM are such vector-matrix or matrix-tensor procedures with continuous-logical operations as: normalized vector operations “equivalence”, “nonequivalence”, and etc. , we consider in this paper new conceptual approaches to the design of full-scale arrays of such neuron-equivalentors (NEs) with extended functionality, including different activation functions. Our approach is based on the use of analog and mixed (with special coding) methods for implementing the required operations, building NEs (with number of synapsis from 8 up to 128 and more) and their base cells, nodes based on photosensitive elements and CMOS current mirrors. Simulation results show that the efficiency of NEs relative to the energy intensity is estimated at a value of not less than 1012 an. op. / sec on W and can be increased. The results confirm the correctness of the concept and the possibility of creating NE and MIMO structures on their basis.

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“…2. The significant difference of the proposed cell R MCL D from previously considered in papers 25,26 is that for all CL functions formed with TPC signals there is start-stop binding for the start of conversion. For some functions in the same papers 25, 26 such binding was not.…”

Section: Simulation Of the Base Cell R MCL Dmentioning

confidence: 92%

“…The OPR ULE has sub-pixel configuration of 2x2 elements and consists of 4 photodiodes and 18 transistors, it has low consumption power <(1 5) mW, high productivity and it can realize base set of continuous logic operations on time-pulse coded signals. Structure charts of such matrix base blocks and simple optical systems for connections are shown in the paper 25 . Problem of simplification of optical systems are solved in such case.…”

Section: Introductionmentioning

confidence: 99%

Simulation of reconfigurable multifunctional continuous logic devices as advanced components of the next generation high-performance MIMO-systems for the processing and interconnection

Krasilenko¹,

Nikolskyy

Lazarev

2013

SPIE Proceedings

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We consider design and modeling of hardware realizations of reconfigurable multifunctional continuous logic devices (R MCL D) as advanced components of the next generation high-performance MIMO-systems for the processing and interconnection. The R MCL D realize function of two-valued and continuous logics with current inputs and current outputs on the basis of CMOS current mirrors and circuits which realize the limited difference functions. We show advantages of such elements consisting in encoding of variables by the photocurrent levels, that allows easily providing optical inputs (by photo-detectors (PD)) and optical outputs (by LED). The conception of construction of R MCL D consists in the use of a current mirrors realized on 1.5μm technology CMOS transistors. Presence of 55÷65 transistors, 1 PD and 1 LED makes the offered circuits quite compact and allows their integration in 1D and 2D arrays. In the presentation we consider the capabilities of the offered circuits, show the simulation results and possible prospects of application of the circuits in particular for time-pulse coding for multivalued, continuous, neuro-fuzzy and matrix logics. The simulation results of NOT, MIN, MAX, equivalence (EQ) and other functions, that implemented R MCL D, showed that the level of logical variables can change from 1 μA to 10 μA for low-power consumption variants. The base cell of the R MCL D have low power consumption <1mW and processing time about 1÷11μS at supply voltage 2.4÷3.3V. Modeling of such cells in OrCad is made.

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Family of optoelectronic photocurrent reconfigurable universal (or multifunctional) logical elements (OPR ULE) on the basis of continuous logic operations (CLO) and current mirrors (CM)

Cited by 5 publications

References 9 publications

Gate‐Switchable Photovoltaic Effect in BP/MoTe₂ van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics

Gate‐Switchable Photovoltaic Effect in BP/MoTe₂ van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics

Design and Simulation of Neuron-Equivalentors Array for Creation of Self-Learning Equivalent-Convolutional Neural Structures (Slecns)

Simulation of reconfigurable multifunctional continuous logic devices as advanced components of the next generation high-performance MIMO-systems for the processing and interconnection

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Family of optoelectronic photocurrent reconfigurable universal (or multifunctional) logical elements (OPR ULE) on the basis of continuous logic operations (CLO) and current mirrors (CM)

Cited by 5 publications

References 9 publications

Gate‐Switchable Photovoltaic Effect in BP/MoTe2 van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics

Gate‐Switchable Photovoltaic Effect in BP/MoTe2 van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics

Design and Simulation of Neuron-Equivalentors Array for Creation of Self-Learning Equivalent-Convolutional Neural Structures (Slecns)

Simulation of reconfigurable multifunctional continuous logic devices as advanced components of the next generation high-performance MIMO-systems for the processing and interconnection

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Gate‐Switchable Photovoltaic Effect in BP/MoTe₂ van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics

Gate‐Switchable Photovoltaic Effect in BP/MoTe₂ van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics