All-Photonic Molecular Half-Adder

Andréasson, Joakim; Straight, Stephen D.; Kodis, Gerdenis; Park, Choong Do; Hambourger, Michael; Gervaldo, Miguel; Albinsson, Bo; Moore, Thomas A.; Moore, Ana L.; Gust, Devens

doi:10.1021/ja0654579

Cited by 146 publications

(76 citation statements)

References 35 publications

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“…20 Recent implementations include a half-adder, 21 2:1 digital multiplexer, 22 and 1:2 demultiplexer. 23 A digital encoder converts data into a code.…”

Section: Introductionmentioning

confidence: 99%

Molecular All-Photonic Encoder−Decoder

et al. 2008

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Abstract:In data processing, an encoder can compress digital information for transmission or storage, whereas a decoder recovers the information in its original form. We report a molecular triad consisting of a dithienylethene covalently linked to two fulgimide photochromes that performs as an all-photonic single bit 4 to 2 encoder and 2 to 4 decoder. The encoder compresses the information contained in the four inputs into two outputs. The inputs are light of four different wavelengths that photoisomerize the fulgimide, dithienylethene, or both. The outputs are absorbance at two wavelengths. The two decoder inputs are excitation at two wavelengths, whereas the four outputs, which recover the information compressed into the inputs, are absorbance at two wavelengths, transmittance at one wavelength, and fluorescence emission. The molecule can be cycled through numerous encoder and decoder functions † Chalmers University of Technology ‡ Arizona State University 2 without significant photodecomposition. Molecular photonic encoders and decoders could potentially be used for labeling and tracking of nano-and microscale objects as well as for data manipulation. ________________________________________________________________

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“…20 Recent implementations include a half-adder, 21 2:1 digital multiplexer, 22 and 1:2 demultiplexer. 23 A digital encoder converts data into a code.…”

Section: Introductionmentioning

confidence: 99%

Molecular All-Photonic Encoder−Decoder

et al. 2008

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“…By using light of carefully selected wavelengths in the UV and the visible region of the spectrum, the independent isomerization of the photochromes Indeed, by the use of three photonic inputs in the UV (302 nm, 366 nm, and 397 nm) and two in the visible (green light and red light), together with output readings at five different wavelengths, we showed that the triad can perform the functions of 13 logic devices. These include the half-adder, [56][57][58] half-subtractor, multiplexer, [16] demultiplexer, [15] encoder, [18] decoder, [18] keypad lock, [21] and reversible logic gates. [23,59,60] Moreover, all functions were operated with one common initial state (FGo-DTEo), many of them in parallel and all of them resettable by the universal application of green light (see Scheme 5).…”

Section: All-photonic Switching As Idealized Approach Toward Moleculamentioning

confidence: 99%

Information Processing with Molecules—Quo Vadis?

et al. 2012

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2 Lead-In. Information processing at the molecular level is coming of age. Since the first molecular AND gate was proposed ca. 20 years ago, the molecular interpretation of binary logic has become vastly more sophisticated and complex. However, the field is also at a crossroads. While cleverly designed molecular building blocks are abundant, difficult questions remain. How can molecular components be flexibly assembled into larger circuits, and how can these components communicate with one another. The concept of all-photonic switching with photochromic supermolecules has shown some interesting potential and is discussed in this Review. Although the field of molecular logic was originally discussed mainly in terms of a technology that might compete with solid-state computers, potential applications have expanded to include clever molecular systems and materials for drug delivery, sensing, probing, encoding, and diagnostics.These upcoming trends, which are herein illustrated by selected examples, deserve general attention.

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“…Most circuits implemented in laboratory experiments so far are one-bit half-adders. Half-adders and their component gates are realised using enzymatic networks [38,33,10,30,27], photonic molecular devices [7,8,25], quantum logic inside a single molecule [18], molecular structural circuits [19,32], acellular slime mould [40,3,28,41], nuclear magnetic resonance [36], ribosomes and mRNAs [35], peptide networks [9], and excitable chemical media [23,21,16,22]. In excitable chemical media signal careers are excitation waves; the signals are modified via interaction between the excitation waves or wave-fragments.…”

Section: Introductionmentioning

confidence: 99%

On Half-Adders Based on Fusion of Signal Carriers: Excitation, Fluidics, and Electricity

Adamatzky¹

2016

ComplexSystems

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All-Photonic Molecular Half-Adder

Cited by 146 publications

References 35 publications

Molecular All-Photonic Encoder−Decoder

Molecular All-Photonic Encoder−Decoder

Information Processing with Molecules—Quo Vadis?

On Half-Adders Based on Fusion of Signal Carriers: Excitation, Fluidics, and Electricity

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