Fig. 3 Research based on the operation mechanism of the light-induced phase change
(a) Schematic of the all-optical memory device based on GST; (b) Optical transmission data of the waveguide are encoded by switching between crystalline and amorphous phases GST; (c) Multiple repetitions of the same switching cycle[26]; (d) Schematic illustration of the neuromorphic devices based on VO2 film; (e) ID response to UV irradiation at different durations; (f) Relationship between ΔID and incident UV dose; (g) Realization of neuromorphic preprocessing function to achieve image noise reduction utilizing the sensor array, with the system being spatially divided into a convolution kernel array part for visual information preprocessing and an ANN part for image recognition; (h) Recognition accuracy with and without neuromorphic preprocessing[27]; Colorful figures are available on website
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