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Broadband nonlinear modulation of incoherent light using a transparent optoelectronic neuron array.
Zhang, Dehui; Xu, Dong; Li, Yuhang; Luo, Yi; Hu, Jingtian; Zhou, Jingxuan; Zhang, Yucheng; Zhou, Boxuan; Wang, Peiqi; Li, Xurong; Bai, Bijie; Ren, Huaying; Wang, Laiyuan; Zhang, Ao; Jarrahi, Mona; Huang, Yu; Ozcan, Aydogan; Duan, Xiangfeng.
Affiliation
  • Zhang D; Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
  • Xu D; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA.
  • Li Y; Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, USA.
  • Luo Y; Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, USA.
  • Hu J; Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, USA.
  • Zhou J; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA.
  • Zhang Y; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA.
  • Zhou B; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA.
  • Wang P; Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
  • Li X; Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, USA.
  • Bai B; Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, USA.
  • Ren H; Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
  • Wang L; Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
  • Zhang A; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA.
  • Jarrahi M; Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, USA.
  • Huang Y; California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA.
  • Ozcan A; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA.
  • Duan X; California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA.
Nat Commun ; 15(1): 2433, 2024 Mar 18.
Article in En | MEDLINE | ID: mdl-38499545
ABSTRACT
Nonlinear optical processing of ambient natural light is highly desired for computational imaging and sensing. Strong optical nonlinear response under weak broadband incoherent light is essential for this purpose. By merging 2D transparent phototransistors (TPTs) with liquid crystal (LC) modulators, we create an optoelectronic neuron array that allows self-amplitude modulation of spatially incoherent light, achieving a large nonlinear contrast over a broad spectrum at orders-of-magnitude lower intensity than achievable in most optical nonlinear materials. We fabricated a 10,000-pixel array of optoelectronic neurons, and experimentally demonstrated an intelligent imaging system that instantly attenuates intense glares while retaining the weaker-intensity objects captured by a cellphone camera. This intelligent glare-reduction is important for various imaging applications, including autonomous driving, machine vision, and security cameras. The rapid nonlinear processing of incoherent broadband light might also find applications in optical computing, where nonlinear activation functions for ambient light conditions are highly sought.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nat Commun Journal subject: BIOLOGIA / CIENCIA Year: 2024 Document type: Article Affiliation country: Estados Unidos Country of publication: Reino Unido
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nat Commun Journal subject: BIOLOGIA / CIENCIA Year: 2024 Document type: Article Affiliation country: Estados Unidos Country of publication: Reino Unido