Smart in-memory light sensors perform image recognition

https://techxplore.com/news/2023-06-smart-in-memory-sensors-image-recognition.html

"light-sensitive memory programmed by light...embedded 2D MoS2 into semiconductor capacitor (MOSCAP) underpins charge-storing pixels of CCD sensor... resulting Al/Al2O3/MoS2/Al2O3/Si MOSCAP charge-trapping in-memory sensor sensitive to visible light, programmed optically and erased electrically... memory window voltage >2V stored up to 10 years, electrically erased by applying +/-6V signal, operated for many millions of cycles... operates as an optoelectronic memristor"

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With trapped waves, researchers resolve longstanding debate about localizing light in three dimensions

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https://medicalxpress.com/news/2023-07-copper-clearer-mri-images-diagnosis.html