A photonic brain-like device for learning, memory and decision recognition and its preparation method

Abstract

The invention discloses a photonic brain-inspired device for learning, memory and judgment recognition and a preparation method thereof. The device comprises a Si substrate layer, an epitaxial buffer layer, an n-GaN layer, an n-electrode, waveguide, transmitting end and receiving end, the n-electrode constitutes a common end, the transmitting end is connected to the receiving end through the waveguide, the receiving end is directly connected to the n-electrode, and the transmitting end is respectively connected to the n-electrode through the waveguide , a cavity penetrating through the Si substrate layer, the epitaxial buffer layer and the n-GaN layer is provided under the transmitting end, the receiving end and the waveguide. The invention uses photons instead of electrons as information carriers to simulate the transmission of neurotransmitters in neurons and synapses. The simulated human brain integrates perceptual information of different modalities to make an optimal judgment, and realizes the self-learning, memory and judgment of the simulated human brain.

Description

technical field [0001] The invention belongs to the field of neuroscience and information material devices, and relates to a photonic brain-like device for learning, memory and judgment recognition and its preparation technology. Background technique [0002] Following the success of the Human Genome Project, human brain research has become the next major challenge target. The Human Brain Project was initiated by Mark Ram, the initiator of the Blue Brain Project, a scientist at the Swiss Federal Institute of Technology in Lausanne, including research on the combination of neuroscience and information science. Since 2004, governments and research institutions of various countries have begun to pay close attention to the research of "brain-like computing", and a number of major national research programs have emerged. In 2013, the European Union selected the Human Brain Project (HBP) as a flagship project for future emerging technologies, planning to invest 1.19 billion euros...

AI Technical Summary

Problems solved by technology

These two artificial synapse technologies use electrical signals to transmit stimulation. Compared with the human brain, the power consumption is large, the calculation speed is low, the structure is simple, and the function is limited, which cannot be well adapted to the rapidly developing market.

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