Multivalued Logic for Optical Computing with Photonically Enabled Chiral Bio-organic Structures

Abstract

Photonic bio-organic multiphase structures are suggested here for integrated thin-film electronic nets with multilevel logic elements for multilevel computing via a reconfigurable photonic bandgap of chiral biomaterials. Herein, inspired by an artificial intelligence system with efficient information integration and computing capability, the photonically active dielectric layer of chiral nematic cellulose nanocrystals is combined with printed-in p-and ntype organic semiconductors as a bifunctional logical element. These adaptive logic elements are capable of triggering tailored quantized electrical output signals under light with different photon energy and at the different photonic bandgaps of the active dielectric layer. The bifunctional structures enable complex memory behavior upon repetitive changes of photonic bandgap (controlled by expansion/contraction of chiral nematic pitch) and photon energy (controlled by light absorption wavelength of complementary organic semiconductor layers), exhibiting effectively a reconfigurable ternary logic response. This proof-of-concept bio-assisted multivalued logic structure facilitates an optical computing system for low-power optical information processing integrated with human− machine interfaces.

Chiro‐Optoelectronic Encodable Multilevel Thin Film Electronic Elements with Active Bio‐Organic Electrolyte Layer

“…Recently, we reported the CNC composite BOFETs system, exhibiting the reconfigurable quinary logic values identically for each device array. [ 62 ] However, to realize more subdivided logic values by facilitating the chiral supramolecular structures and salt concentration ( C )‐dependent chiral pitch modulation of the unique biopolymer characteristics, circularly polarized lights ( P ) and the solution patterning of NaCl electrolyte onto the prepared CNC film are introduced in this study in order to design higher‐level readable discrete signals. Thus, we design reconfigurable 13‐digit logic values for elaborate optical communication with advanced encryption applications that were unreachable in previous designs.…”

Trainable Bilingual Synaptic Functions in Bio-enabled Synaptic Transistors

“…By deploying the CNC/PEG/NaCl electrolyte into the element of an EGT, it allows exploring how the presence of water molecules tunes the volatility, thus balancing the excitatory and inhibitory functions. Note that the absorption and desorption of water molecules cause expansion or shrinkage of chiral pitch, resulting in a reddish and greenish color appearance, corresponding to high and low RH conditions in the system, respectively. , The photonic input 2 is additionally introduced to emulate the process by which the human brain obtains information from the outside world through the visual system. For example, in the demonstrated neuromorphic device, the green and red letters can be accurately identified by modulating the polarization state of light and humidity conditions (Figure b).…”

Nanomaterial-Based Artificial Vision Systems: From Bioinspired Electronic Eyes to In-Sensor Processing Devices

“…In another example, the synaptic photodetector was employed in chiroptical imaging for selective identification of circularly polarized (CP) light with a specific rotating orientation (Figure 4c, (v)). 29,87 This synaptic photodetector amplified the photocurrent generated by frequent CP lights with the target orientation only, and thus, the selectivity could be improved.…”