41 citations · 53 across the 11 of their papers we have counts for
11 papers
Optically-triggered deterministic spiking regimes in nanostructure resonant tunnelling diode-photodetectors
Qusay Raghib Ali Al-Taai, Matěj Hejda, Weikang Zhang +4
This work reports a nanostructure resonant tunnelling diode-photodetector (RTD-PD) device and demonstrates its operation as a controllable, optically-triggered excitable spike gene…
Artificial optoelectronic spiking neuron based on a resonant tunnelling diode coupled to a vertical cavity surface emitting laser
Matěj Hejda, Ekaterina Malysheva, Dafydd Owen-Newns +9
Excitable optoelectronic devices represent one of the key building blocks for implementation of artificial spiking neurons in neuromorphic (brain-inspired) photonic systems. This w…
Resonant tunnelling diode nano-optoelectronic spiking nodes for neuromorphic information processing
Matěj Hejda, Juan Arturo Alanis, Ignacio Ortega-Piwonka +5
In this work, we introduce an optoelectronic spiking artificial neuron capable of operating at ultrafast rates ( 100 ps/optical spike) and with low energy consumption (…
Delay dynamics of neuromorphic optoelectronic nanoscale resonators: Perspectives and applications
B. Romeira, J. M. L. Figueiredo, J. Javaloyes
With the recent exponential growth of applications using artificial intelligence (AI), the development of efficient and ultrafast brain-like (neuromorphic) systems is crucial for f…
Regenerative memory in time-delayed neuromorphic photonic systems
B. Romeira, R. Avó, José M. L. Figueiredo +2
We investigate a regenerative memory based upon a time-delayed neuromorphic photonic oscillator and discuss the link with temporal localized structures. Our experimental implementa…
Modeling of a Resonant Tunneling Diode Optical Modulator
J. J. N. Calado, J. M. L. Figueiredo, C. N. Ironside
The integration of a double barrier resonant tunneling diode within a unipolar optical waveguide provides electrical gain over a wide bandwidth. Due to the non-linearities introduc…