Optogenetics-inspired manipulation of synaptic memory using all-optically controlled memristors

Sun, Qihao; Guo, Zhecheng; Zhu, Xing; Jiang, Qian; Liu, Huiyuan; Liu, Xuerong; Sun, Cui; Zhang, Yuejun; Liu, Wu; Li, Run-Wei

doi:10.1039/d3nr00900a

Cited by 5 publications

(3 citation statements)

References 41 publications

(48 reference statements)

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“…39 Additionally, the advantages of all-optical control have long been demonstrated in optogenetics, where specific wavelengths and intensities of light can control the activity of target neurons within milliseconds, offering high spatial precision and excellent specificity. 40 Similarly, introducing bipolar all-optical control AVS into the artificial vision neural system will enhance its cognitive abilities and significantly improve the flexibility of the regulatory system. 41,42 Achieving bidirectional photo response and multilevel nonvolatile optical pulse control of AVS is crucial for constructing artificial vision neural networks with efficient sensing-storage-computing functions.…”

Section: ■ Introductionmentioning

confidence: 99%

“…This reduces the integration density of array devices and introduces issues such as resistive-capacitive delay and current crosstalk. , Optical pulses, characterized by noncontact operation, high bandwidth, and parallel transmission, simplify circuits and reduce energy consumption. , They provide an effective solution to address the low integration density, resistive-capacitive delay, and current crosstalk issues in array devices . Additionally, the advantages of all-optical control have long been demonstrated in optogenetics, where specific wavelengths and intensities of light can control the activity of target neurons within milliseconds, offering high spatial precision and excellent specificity . Similarly, introducing bipolar all-optical control AVS into the artificial vision neural system will enhance its cognitive abilities and significantly improve the flexibility of the regulatory system. , Achieving bidirectional photo response and multilevel nonvolatile optical pulse control of AVS is crucial for constructing artificial vision neural networks with efficient sensing-storage-computing functions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

All-Photon Bipolar Reversible Modulation Artificial Synapse for Color Perception and Mitigation of Glare Phenomenon

Fu,

Dai,

et al. 2024

ACS Photonics

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The convergence of computation and storage through artificial synapses is a vibrant area of research, with notable attention directed toward photonic artificial synapses, particularly in emulating human visual perception and memory. However, many of these solutions necessitate both optical and electrical signals for bidirectional modulation. In this work, we report an optically responsive memristor (with a configuration of Ag:AgI/MA 0.4 FA 0.6 PbI 3 /Ag:AgI) that achieves bidirectional switching of resistive states utilizing 450 and 650 nm light at an ultralow readout voltage of 0.001 V. The maximum high-to-low resistive switching ratio can attain an impressive value of 74,459 at the readout voltage of 0.01 V, enabling comprehensive photonic bipolar modulation. The device presents artificial visual synapse (AVS) features in terms of short-term plasticity (STP)/long-term plasticity (LTP) to pulsed light in the range 300−700 nm. Under 450 nm blue light, an abrupt shift from low to high resistance can be observed, resembling the effect of glare. Intriguingly, the introduction of 650 nm red light can expedite recovery following blue light exposure. These attributes underscore the potential of the device for tasks encompassing color recognition, memory functions, and adaptation, suggesting promising prospects within artificial visual neural networks for ultraviolet and visible light sensing, transmission, and memory applications.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

All-Photon Bipolar Reversible Modulation Artificial Synapse for Color Perception and Mitigation of Glare Phenomenon

Fu,

Dai,

et al. 2024

ACS Photonics

View full text Add to dashboard Cite

show abstract

“…For example, all-optically controlled memristors have been proposed to emulate optogeneticsinspired manipulation of synaptic memory. [8] Optogenetic synaptic devices based on heterostructures of quantum dots and 2D materials have also been reported, while the nonvolatility of synaptic devices exhibits vital synaptic functionalities and synchronous fluorescence upon optical stimulation. [9] Moreover, optogenetics-inspired van der Waals synaptic devices have been explored to demonstrate the inherent photosensitive memory nature derived from the persistent photoconductivity effect.…”

Section: Introductionmentioning

confidence: 99%

Single‐Transistor Optoelectronic Spiking Neuron with Optogenetics‐Inspired Spatiotemporal Dynamics

Li,

Hu,

Zhang

et al. 2024

Adv Funct Materials

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The visual system is crucial for human perception and learning, and the retina is responsible for pre‐processing visual information. Mimicking the neurobiological functions of the retina provides the basis for neuromorphic vision hardware. Here, an optogenetics‐inspired prototype capable of modifying neuron‐spiking behavior in a retina‐like manner is demonstrated. In addition to basic information processing, neuronal signal transmission in the retina is bio‐faithfully emulated using optical modulation, that is, neuronal firing is inhibited in the dark and activated upon illumination. The proposed single threshold‐switch field‐effect transistor optoelectronic neuron features an ultra‐compact design by integrating a gate‐modulated 2D MoS2 channel with a volatile threshold switch, and optoelectronic performance is achieved through a multi‐physics resistance‐matching mechanism. This study provides a promising pathway toward highly scalable and hierarchically designed spiking electronics, expanding the spectrum of neuromorphic hardware applications in the emerging field of biomimetic vision.

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AlGaN/GaN MOS-HEMT enabled optoelectronic artificial synaptic devices for neuromorphic computing

Chen,

Du,

et al. 2024

APL Machine Learning

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Artificial optoelectronic synaptic transistors have attracted extensive research interest as an essential component for neuromorphic computing systems and brain emulation applications. However, performance challenges still remain for synaptic devices, including low energy consumption, high integration density, and flexible modulation. Employing trapping and detrapping relaxation, a novel optically stimulated synaptic transistor enabled by the AlGaN/GaN hetero-structure metal-oxide semiconductor high-electron-mobility transistor has been successfully demonstrated in this study. Synaptic functions, including excitatory postsynaptic current (EPSC), paired-pulse facilitation index, and transition from short-term memory to long-term memory, are well mimicked and explicitly investigated. In a single EPSC event, the AlGaN/GaN synaptic transistor shows the characteristics of low energy consumption and a high signal-to-noise ratio. The EPSC of the synaptic transistor can be synergistically modulated by both optical stimulation and gate/drain bias. Moreover, utilizing a convolution neural network, hand-written digit images were used to verify the data preprocessing capability for neuromorphic computing applications.

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Optogenetics-inspired manipulation of synaptic memory using all-optically controlled memristors

Abstract: Memristive synapses compatible with optogenetics techniques allow for the fast and low-power manipulation of memory activities using light in artificial neural systems. However, most of the optoelectronic memristors operate in...

Cited by 5 publications

References 41 publications

All-Photon Bipolar Reversible Modulation Artificial Synapse for Color Perception and Mitigation of Glare Phenomenon

All-Photon Bipolar Reversible Modulation Artificial Synapse for Color Perception and Mitigation of Glare Phenomenon

Single‐Transistor Optoelectronic Spiking Neuron with Optogenetics‐Inspired Spatiotemporal Dynamics

AlGaN/GaN MOS-HEMT enabled optoelectronic artificial synaptic devices for neuromorphic computing

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