Primitive Optical Computing Model with Films: Boolean Conjunction of the Square Matrix-Arrayed Color Codes

2013 ◽  
Vol 17 (6) ◽  
pp. 791-798 ◽  
Author(s):  
Tomonori Kawano ◽  
Keyword(s):  
Logic Gate ◽  
Color Space ◽  
Optical Computing ◽  
Logic Gates ◽  
Natural Computing ◽  
Optical Logic ◽  
Spatial Coding ◽  
Transparent Films ◽  
Significant Step ◽  
Gate System

Color is one of the most useful and attractive characteristics of light applicable to optical science and the related industries. In recent decades, a number of studies focusing on the use of light as a key component of computation have attracted considerable attention from researchers and engineers because these studies are potentially applicable to signal processing through optical interconnections between electronic devices. Such studies include the optical parallel logic gates proposed by a Japanese research group, allowing spontaneous and parallel computing with spatial coding using lights, simply by overlaying a pair of shadowgram images. For computational handling of the colors visible to human eyes,Commission Internationale de l’Eclairgehas defined CIE 1976 color space (CIELAB). The author has been engaged in the development of CIELAB-based printable and computable color codes possibly used for novel optical logic gate system as one of natural computing approaches. In the present study, by employing the pairs of CIELAB-coded-printed transparent films overlaid, a Boolean operation for the crossing (conjugation) of 2-by-2 color matrices based on the scanning of CIELAB values was demonstrated. This approach is still primitive but might be a significant step for manifesting the array-based processing of colors representing print-preserved and digitalized information.

scholarly journals Vortex Beam Encoded All-Optical Logic Gates Based on Nano-Ring Plasmonic Antennas

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1649
Author(s):  
Houquan Liu ◽  
Hongchang Deng ◽  
Shijie Deng ◽  
Chuanxin Teng ◽  
Ming Chen ◽  
...  
Keyword(s):  
Logic Gate ◽  
Logic Gates ◽  
Vortex Beam ◽  
Optical Logic ◽  
Optical Elements ◽  
Optical Logic Gates ◽  
Input Signals ◽  
All Optical ◽  
Vortex Beams ◽  
Polarization States

Vortex beam encoded all-optical logic gates are suggested to be very important in future information processing. However, within current logic devices, only a few are encoded by using vortex beams and, in these devices, some space optical elements with big footprints (mirror, dove prism and pentaprism) are indispensable components, which is not conducive to device integration. In this paper, an integrated vortex beam encoded all-optical logic gate based on a nano-ring plasmonic antenna is proposed. In our scheme, by defining the two circular polarization states of the input vortex beams as the input logic states and the normalized intensity of the plasmonic field at the center of the nano-ring as the output logic states, OR and AND (NOR and NAND) logic gates are realized when two 1st (1st) order vortex beams are chosen as the two input signals; and a NOT logic gate is obtained when one 1st order vortex beam is chosen as the input signal. In addition, by defining the two linear polarization states (x and y polarization) of the input vortex beams as the two input logic states, an XNOR logic gate is realized when two 1st order vortex beams are chosen as the two input signals.

scholarly journals Bio-inspired spatially variant photonic crystals for self-collimation and beam-steering applications in the near-infrared spectrum

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rudra Gnawali ◽  
Andrew Volk ◽  
Imad Agha ◽  
Tamara E. Payne ◽  
Amit Rai ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Near Infrared ◽  
Beam Steering ◽  
Logic Gate ◽  
Logic Gates ◽  
Dielectric Materials ◽  
Optical Systems ◽  
Optical Logic ◽  
Spatially Variant

AbstractThe self-collimation of light through Photonic Crystals (PCs) due to their optical properties and through a special geometric structure offers a new form of beam steering with highly optical control capabilities for a range of different applications. The objective of this work is to understand self-collimation and bending of light beams through bio-inspired Spatially Variant Photonic Crystals (SVPCs) made from dielectric materials such as silicon dioxide and common polymers used in three-dimensional printing like SU-8. Based upon natural PCs found in animals such as butterflies and fish, the PCs developed in this work can be used to manipulate different wavelengths of light for optical communications, multiplexing, and beam-tuning devices for light detection and ranging applications. In this paper, we show the optical properties and potential applications of two different SVPC designs that can control light through a 90-degree bend and optical logic gates. These two-dimensional SVPC designs were optimized for operation in the near-infrared range of approximately 800–1000 nm for the 90-degree bend and 700–1000 nm for the optical logic gate. These SVPCs were shown to provide high transmission through desired regions with low reflection and absorption of light to prove the potential benefits of these structures for future optical systems.

scholarly journals High Speed All-Optical Logic Gate Using QD-SOA and its Application

2017 ◽  
Author(s):  
Shuai Zhao ◽  
Hongyu Hu
Keyword(s):  
High Speed ◽  
Logic Gate ◽  
Logic Gates ◽  
Boolean Logic ◽  
Hole Burning ◽  
Spectral Hole Burning ◽  
Optical Logic ◽  
Carrier Heating ◽  
Optical Logic Gates ◽  
All Optical

The scheme to realize high speed (~250Gb/s) all-optical Boolean logic gates using semiconductor optica amplifiers with quantum-dot (QD-SOA) is introduced and analyzed in this review. Numerical simulation method was presented by solving the rate equation and taking into account nonlinear dynamics including carrier heating and spectral hole-burning. Binary phase shift keyed (BPSK) signal and on-off keyed signal are used to generate high speed all-optical logic gates. The applications based on all-optical logic gates such as, all-optical latches, pseudo random bit sequence (PRBS) generation and all-optical encryption, are also discussed in this review. Results show that the scheme based on QD-SOA is a promising method for the realization of high speed all-optical communication system in the future.

Bio-Inspired Spatially Variant Photonic Crystals for Beam-Steering Applications

2021 ◽  
Author(s):  
Rudra Gnawali ◽  
Andrew Volk ◽  
Imad Agha ◽  
Tamara Payne ◽  
Jimmy Touma
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Beam Steering ◽  
Logic Gate ◽  
Logic Gates ◽  
Dielectric Materials ◽  
Optical Systems ◽  
Infrared Range ◽  
Optical Logic ◽  
Spatially Variant

Abstract The self-collimation of light through Photonic Crystals (PCs) due to their optical properties and through a special geometric structure offers a new form of beam steering with highly optical control capabilities for a range of different applications. The objective of this work is to understand self-collimation and bending of light beams through Spatially Variant Photonic Crystals (SVPCs) made from dielectric materials such as silicon dioxide as well as common polymers used in three-dimensional printing like SU-8. These PCs can be used for optical communications, multiplexing, and beam-tuning devices for light detection and ranging applications. In this paper we show the optical properties and potential applications of two different SVPC designs that can control light through a 90-degree bend and optical logic gates. These two-dimensional SVPC designs were optimized for operation in the near-infrared range of approximately 800–1000 nm for the 90-degree bend and 700-100nm for the optical logic gate. These SVPCs were shown to provide high transmission through desired regions with low reflection and absorption of light to prove the potential benefits of these structures for future optical systems.

scholarly journals Construction of Multiple Switchable Sensors and Logic Gates Based on Carboxylated Multi-Walled Carbon Nanotubes/Poly(N,N-Diethylacrylamide)

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3358 ◽  
Author(s):  
Xuemei Wu ◽  
Xiaoqing Bai ◽  
Yang Ma ◽  
Jie Wei ◽  
Juan Peng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Logic Gate ◽  
Logic Gates ◽  
Present System ◽  
Ph Responsive ◽  
Cyclic Voltammetric ◽  
Computing Systems ◽  
Multi Walled Carbon Nanotubes ◽  
Gate System ◽  
Walled Carbon Nanotubes

In this work, binary hydrogel films based on carboxylated multi-walled carbon nanotubes/poly(N,N-diethylacrylamide) (c-MWCNTs/PDEA) were successfully polymerized and assembled on a glassy carbon (GC) electrode surface. The electroactive drug probes matrine and sophoridine in solution showed reversible thermal-, salt-, methanol- and pH-responsive switchable cyclic voltammetric (CV) behaviors at the film electrodes. The control experiments showed that the pH-responsive property of the system could be ascribed to the drug components of the solutions, whereas the thermal-, salt- and methanol-sensitive behaviors were attributed to the PDEA constituent of the films. The CV signals particularly, of matrine and sophoridine were significantly amplified by the electrocatalysis of c-MWCNTs in the films at 1.02 V and 0.91 V, respectively. Moreover, the addition of esterase, urease, ethyl butyrate, and urea to the solution also changed the pH of the system, and produced similar CV peaks as with dilution by HCl or NaOH. Based on these experiments, a 6-input/5-output logic gate system and 2-to-1 encoder were successfully constructed. The present system may lead to the development of novel types of molecular computing systems.

Evaluating RSOA Performance with Optical Logic Gates at 100 Gbps Data Rate

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Devendra Kr. Tripathi
Keyword(s):  
Carrier Density ◽  
Extinction Ratio ◽  
Optical Computing ◽  
Logic Gates ◽  
Optical Amplifier ◽  
Data Rate ◽  
Optical Logic ◽  
Active Length ◽  
Optical Logic Gates ◽  
All Optical

AbstractAll optical logic gates are the key elements of contemporary optical computing unit. For that non-linear attribute of reflective semiconductor optical amplifier (RSOA) is exploited to configure optical logic gates. Accordingly, in the manuscript all optical OR/NOR/Buffer binary logic network for the nonreturn to zero format has been designed. Its operation at 100 Gbps data rate has been successfully realized. For the applied data inputs in nonreturn to zero patterns, their corresponding output waveforms for the stated logic action have been verified. Numerical investigations for the imperative design constraints as data rate, injected power and imperative elements of the semiconductor optical amplifiers (SOAs) pump current, carrier density, active length, confine factor, laser power has been appropriately executed with optimum performance. It has depicted good extinction ratio (>10 dB) performance with confine factor more than 0.2 and higher carrier density of amplifier. Further, it also accomplished, that for the OR, buffer logic execution with lower power of pump laser and for the NOR logic execution higher power laser pump source is required. The proposed design could fulfill need for the impending higher data rate composite optical computing units.

Simulative Approach to Realize All Optical-Frequency-Encoded Dibit-Based Integrated Logic Gates

2019 ◽  
pp. 142-163
Author(s):  
Bitan Ghosh ◽  
Partha Pratim Sarkar
Keyword(s):  
Frequency Conversion ◽  
Logic Gate ◽  
Logic Gates ◽  
Optical Amplifier ◽  
Control Input ◽  
Potential Candidate ◽  
Optical Logic ◽  
All Optical ◽  
Representation Technique ◽  
Integrated Logic

Optics is considered a potential candidate for the realization of logic devices, digital optical systems for communication, and computation exploiting its super-fast speed. Optical logic gates also can act on the basis of frequency conversion process of some nonlinear materials. Further, in this chapter, the authors have mentioned the dibit representation technique for reducing bit error problem at the input and output terminals of all optical digital logic circuits and a control input for selecting particular logic operation. Here the authors have proposed frequency encoded all optical dibit-based integrated AND and OR logic gates with control input, where a single circuit acts as both AND logic gate and OR logic gate using the optical switches like reflected semiconductor optical amplifier and add/drop multiplexer.

scholarly journals Use of Colored Reflectors for Negation or Highlighting of Scanned Color Information on Film-Based CIELAB-Coded Optical Logic Gate Models

2013 ◽  
Vol 17 (6) ◽  
pp. 799-804 ◽  
Author(s):  
Kiyoshi Moritaka ◽  
◽  
Tomonori Kawano
Keyword(s):  
Logic Gate ◽  
Biological Properties ◽  
Natural Computing ◽  
Optical Logic ◽  
Color Information ◽  
Computing Systems ◽  
Optical Interconnections ◽  
Wide Range ◽  
Potential Applications ◽  
Optical Logic Gate

In the last two decades, a number of researchers have been engaged in the study of natural computing systems that employ physical, chemical, and biological properties as direct media for manifesting computations. Among such attempts, studies focusing on the use of lights as key computation components in particular have attracted the attention of researchers and engineers, since these studies are potentially applicable to signal processing through optical interconnections between electronic devices. Our research team has recently been engaged in the study of a novel color-based natural computing model. Our recent works included using CIELAB-coded colors on printed-paper to compute Boolean conjunctions (AND operations). In this study, we performed Boolean operations based on CIELAB-coded colors by placing color-printed films over aluminum-coated reflectors with and/or without color. The results of the operations were gathered by testing the color codes printed on the films for negation or highlighting. This type of CIELAB-based color computing has a wide range of potential applications, such as a method for security or access control to secured systems. Such applications could match paired color keys on which the arrays of color codes could be printed and optically computed.

Spin-encoded subwavelength all-optical logic gates based on single-element optical slot nanoantennas

Nanoscale ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 4523-4527 ◽  
Author(s):  
Zichen Yang ◽  
Yang Fu ◽  
Jing Yang ◽  
Chuang Hu ◽  
Jiasen Zhang
Keyword(s):  
Logic Gate ◽  
Logic Gates ◽  
Single Element ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
All Optical

By employing a spin-encoded scheme, we achieve OR, AND, NOT, NAND and NOR logic gates via an L-shaped optical slot nanoantenna with a footprint of 300 nm by 300 nm, and a XNOR logic gate via a rectangle optical slot nanoantenna with a footprint of 220 nm by 60 nm.

scholarly journals Ultra-fast and compact all-optical encoder based on photonic crystal nano-resonator without using nonlinear materials

2019 ◽  
Vol 11 (1) ◽  
pp. 10 ◽  
Author(s):  
Saeed Olyaee
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Quantum Electronics ◽  
Logic Gate ◽  
Logic Gates ◽  
Ring Resonators ◽  
Two Dimensional ◽  
Optical Logic ◽  
Optical Encoder ◽  
All Optical

In this paper an ultra-compact all-optical encoder is presented by using a two-dimensional photonic crystal. The designed logic gate is based on the interference effect. The proposed structure consists of several photonic crystal waveguides connected by 2 nano-resonators. The nano-resonators are designed to reduce the size of the radius of the dielectric rods. The contrast ratios and delay time for the proposed all-optical encoder are respectively 6 dB and 125 fs. The size of the structure is equal to 132 µm2. Equality of the output power in the logic states “one”, the small dimensions, the low delay time, compact and simple structure have shown that the logic gate is suitable for the using in optical integrated circuits. Full Text: PDF ReferencesA. Salmanpour, Sh. Mohammadnejad, A. Bahrami, "Photonic crystal logic gates: an overview", Optical and Quantum Electronics. 47, 2249 (2015). CrossRef S. C. Xavier, B. E. Carolin, A. p. Kabilan, W. Johnson, "Compact photonic crystal integrated circuit for all-optical logic operation", IET Optoelectronics. 10, 142 (2016). CrossRef Y. Miyoshi, K. Ikeda, H. Tobioka, T. Inoue, S. Namiki, K. Kitayama, "Ultrafast all-optical logic gate using a nonlinear optical loop mirror based multi-periodic transfer function", Optics Express. 16, 2570 (2008). CrossRef D. K. Gayen, A. Bhattachryya, T. Chattopadhyay, J. N. Roy, "Ultrafast All-Optical Half Adder Using Quantum-Dot Semiconductor Optical Amplifier-Based Mach-Zehnder Interferometer", Journal of Lightwave Technology. 30, 3387 (2012). CrossRef A. Mohebzadeh-Bahabady, S. Olyaee, "All-optical NOT and XOR logic gates using photonic crystal nano-resonator and based on an interference effect", IET Optoelectronics. 12, 191 (2018). CrossRef Z. Mohebbi, N. Nozhat, F. Emami, "High contrast all-optical logic gates based on 2D nonlinear photonic crystal", Optics Communications. 355, 130 (2015). CrossRef M. Mansouri-Birjandi, M. Ghadrdan, "Full-optical tunable add/drop filter based on nonlinear photonic crystal ring resonators", Photonics and Nanostructures-Fundamentals and Applications. 21, 44 (2016). CrossRef H. Alipour-Banaei, S. Serajmohammadi, F. Mehdizadeh, "Effect of scattering rods in the frequency response of photonic crystal demultiplexers", Journal of Optoelectronics and Advanced Materials. 17, 259 (2015). DirectLink A. Mohebzadeh-Bahabady, S. Olyaee, H. Arman, "Optical Biochemical Sensor Using Photonic Crystal Nano-ring Resonators for the Detection of Protein Concentration", Current Nanoscience. 13, 421 (2017). CrossRef S. Olyaee, A. Mohebzadeh-Bahabady, "Designing a novel photonic crystal nano-ring resonator for biosensor application", Optical and Quantum Electronics. 47, 1881 (2015). CrossRef F. Parandin, R. Malmir, M. Naseri, A. Zahedi, "Reconfigurable all-optical NOT, XOR, and NOR logic gates based on two dimensional photonic crystals", Superlattices and Microstructures. 113, 737 (2018). CrossRef F. Mehdizadeh, M. Soroosh, H. Alipour-Banaei, "Proposal for 4-to-2 optical encoder based on photonic crystals", IET Optoelectronics. 11, 29 (2017). CrossRef M. Hassangholizadeh-Kashtiban, R. Sabbaghi-Nadooshan, H. Alipour-Banaei, "A novel all optical reversible 4 × 2 encoder based on photonic crystals", Optik. 126, 2368 (2015). CrossRef T. A. Moniem, "All-optical digital 4 × 2 encoder based on 2D photonic crystal ring resonators", Journal of Modern Optics. 63, 735 (2016). CrossRef S. Gholamnejad, M. Zavvari, "Design and analysis of all-optical 4–2 binary encoder based on photonic crystal", Optical and Quantum Electronics. 49, 302 (2017). CrossRef H. Seif-Dargahi, "Ultra-fast all-optical encoder using photonic crystal-based ring resonators", Photonic Network Communications. 36, 272 (2018). CrossRef S. Olyaee, M. Seifouri, A. Mohebzadeh-Bahabady, and M. Sardari, "Realization of all-optical NOT and XOR logic gates based on interference effect with high contrast ratio and ultra-compacted size", Optical and Quantum Electronics. 50, 12 (2018). CrossRef C. J. Wu, C. P. Liu, Z. Ouyang, "Compact and low-power optical logic NOT gate based on photonic crystal waveguides without optical amplifiers and nonlinear materials", Applied Optics.51, 680 (2012). CrossRef Y. C. Jiang, S. B. Liu, H. F. Zhang, X. K. Kong. "Realization of all optical half-adder based on self-collimated beams by two-dimensional photonic crystals", Optics Communications. 348, 90 (2015). CrossRef A. Salmanpour, S. Mohammadnejad, P. T. Omran, "All-optical photonic crystal NOT and OR logic gates using nonlinear Kerr effect and ring resonators", Optical and Quantum Electronics. 47, 3689 (2015). CrossRef E. H. Shaik, N. Rangaswamy, "Single photonic crystal structure for realization of NAND and NOR logic functions by cascading basic gates", Journal of Computational Electronics. 17, 337 (2018). CrossRef

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