Title:
ON-CHIP OPTICAL DIFFRACTION COMPUTATION PROCESSOR AND ALL-OPTICAL IMAGE CLASSIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/174428
Kind Code:
A1
Abstract:
The present application relates to an on-chip optical diffraction computation processor and an all-optical image classification device. The on-chip optical diffraction computation processor comprises: an input end, which is used for generating a one-dimensional input on the basis of incident light; a waveguide, which is coupled to the input end and is used for limiting a light field to a single mode perpendicular to a plane direction and propagating the light field in an in-plane direction; and at least one dielectric metasurface, wherein the at least one dielectric metasurface is composed of at least one metamaterial unit array and is used for performing amplitude and phase modulation on the light field during a diffraction propagation process, so as to obtain a computation result, thereby completing the computation of neuromorphic photons. In this way, a dielectric-metasurface-based on-chip diffraction processing unit for computing neuromorphic photons is realized, and all-optical image classification is proven by means of experiments; and the space occupied is small, and the light loss is also low.
Inventors:
DAI QIONGHAI (CN)
ZHOU TIANKUANG (CN)
FANG LU (CN)
WU JIAMIN (CN)
ZHOU TIANKUANG (CN)
FANG LU (CN)
WU JIAMIN (CN)
Application Number:
PCT/CN2023/082326
Publication Date:
September 21, 2023
Filing Date:
March 17, 2023
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
G06E3/00
Foreign References:
| CN114815961A | 2022-07-29 | |||
| US20200004201A1 | 2020-01-02 | |||
| CN110520763A | 2019-11-29 | |||
| US20130272652A1 | 2013-10-17 | |||
| US20140085693A1 | 2014-03-27 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC et al. (CN)
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