Search Results for author: Antonio Hurtado

Found 6 papers, 0 papers with code

Interfacing spiking VCSEL-neurons with silicon photonics weight banks towards integrated neuromorphic photonic systems

no code implementations1 May 2023 MatĚJ Hejda, Eli A. Doris, Simon Bilodeau, Joshua Robertson, Dafydd Owen-Newns, Bhavin J. Shastri, Paul R. Prucnal, Antonio Hurtado

Spiking neurons and neural networks constitute a fundamental building block for brain-inspired computing, which is posed to benefit significantly from photonic hardware implementations.

Optically-triggered deterministic spiking regimes in nanostructure resonant tunnelling diode-photodetectors

no code implementations23 Apr 2023 Qusay Raghib Ali Al-Taai, MatĚJ Hejda, Weikang Zhang, Bruno Romeira, José M. L. Figueiredo, Edward Wasige, Antonio Hurtado

This work reports a nanostructure resonant tunnelling diode-photodetector (RTD-PD) device and demonstrates its operation as a controllable, optically-triggered excitable spike generator.

Artificial optoelectronic spiking neuron based on a resonant tunnelling diode coupled to a vertical cavity surface emitting laser

no code implementations22 Jun 2022 MatĚJ Hejda, Ekaterina Malysheva, Dafydd Owen-Newns, Qusay Raghib Ali Al-Taai, Weikang Zhang, Ignacio Ortega-Piwonka, Julien Javaloyes, Edward Wasige, Victor Dolores-Calzadilla, José M. L. Figueiredo, Bruno Romeira, Antonio Hurtado

Furthermore, we also investigate in theory the prospects of the proposed system for its nanophotonic implementation with a monolithic design combining a nanoscale RTD element and a nanolaser; therefore demonstrating the potential of integrated RTD-based excitable nodes for low footprint, high-speed optoelectronic spiking neurons in future neuromorphic photonic hardware.

Resonant tunnelling diode nano-optoelectronic spiking nodes for neuromorphic information processing

no code implementations14 Jul 2021 MatĚJ Hejda, Juan Arturo Alanis, Ignacio Ortega-Piwonka, João Lourenço, José Figueiredo, Julien Javaloyes, Bruno Romeira, Antonio Hurtado

In this work, we introduce an optoelectronic spiking artificial neuron capable of operating at ultrafast rates ($\approx$ 100 ps/optical spike) and with low energy consumption ($<$ pJ/spike).

All-optical neuromorphic binary convolution with a spiking VCSEL neuron for image gradient magnitudes

no code implementations9 Nov 2020 YaHui Zhang, Joshua Robertson, Shuiying Xiang, MatĚJ Hejda, JuliÁn Bueno, Antonio Hurtado

All-optical binary convolution with a photonic spiking vertical-cavity surface-emitting laser (VCSEL) neuron is proposed and demonstrated experimentally for the first time.

Integration of Text-maps in Convolutional Neural Networks for Region Detection among Different Textual Categories

no code implementations26 May 2019 Roberto Arroyo, Javier Tovar, Francisco J. Delgado, Emilio J. Almazán, Diego G. Serrador, Antonio Hurtado

Concretely, these words are previously extracted using Optical Character Recognition (OCR) and they are colored according to the probability of belonging to a textual category of interest.

Optical Character Recognition Optical Character Recognition (OCR)

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