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A Self-Powered Polarization-Sensitive Neuromorphic Vision Device Enabled by Laser-Induced Symmetry Engineering
Jin Peng1,2, Guisheng Zou1,2, Zehua Li1,2
1State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.
ACS Nano
|February 4, 2026
Summary
Researchers developed a novel laser process to create a self-powered, polarization-sensitive vision device. This multifunctional neuromorphic device integrates energy harvesting, sensing, and computation for advanced edge computing applications.
Area of Science:
- Materials Science
- Nanotechnology
- Edge Computing
Background:
- Edge computing demands multifunctional devices integrating energy harvesting, sensing, and computation.
- Current approaches often involve complex configurations for single-device functionality.
Purpose of the Study:
- To develop a facile method for fabricating a self-powered, polarization-sensitive neuromorphic vision device.
- To address the challenge of creating intrinsic multifunctional devices for edge computing.
Main Methods:
- Fabrication of a MoTe2-based architecture using ultrafast laser-induced symmetry engineering (LISE).
- Engineering localized phase transitions for simultaneous energy band and crystal structure symmetry modification.
- Utilizing photovoltaic volatile memory in an engineered FeFET for reservoir computing.
Main Results:
- Achieved simultaneous symmetry engineering of energy bands and crystal structures via LISE.
- Demonstrated a self-powered device with built-in photovoltaic effect and polarization sensitivity.
- Implemented fully self-powered, all-optical reservoir computing for underwater imaging using the device.
Conclusions:
- The LISE process enables the creation of high-performance multifunctional neuromorphic systems.
- Ultrafast lasers are effective tools for manipulating material properties for advanced device applications.
- The developed device offers a powerful hardware-level method for tuning computation via light polarization and gate voltage.
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