• 文献标题:   Graphene-Based Optoelectronic Mixer Device for Time-of-Flight Distance Measurements for Enhanced 3D Imaging Applications
  • 文献类型:   Article, Early Access
  • 作  者:   KIENITZ P, BABLICH A, BORNEMANN R, MULLER M, THIEL F, BOLIVAR PH
  • 作者关键词:   graphene, timeofflight tof, range sensor, distance measurement, superheterodyning, 3dimaging, optoelectronic, optoelectronic mixer, 3d sensor
  • 出版物名称:   NANO LETTERS
  • ISSN:   1530-6984 EI 1530-6992
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1021/acs.nanolett.3c00909 EA JUN 2023
  • 出版年:   2023

▎ 摘  要

A large and growing number of applications benefit frominnovativeand powerful 3D image sensors. Graphene photodetectors can achieve3D sensing functionalities by intrinsic optoelectronic frequency mixingdue to the nonlinear output characteristics of the sensor. In firstproof of principle distance measurement demonstrations, we achievemodulation frequencies of 3.1 MHz, signal-to-noise ratios of similar to 40dB, distance detection up to at least 1 m, and a mean accuracy of25.6 mm. The scalable More than Moore detector approach enables geometricalfill factors close to 100% and can easily complement powerful functionalitiesby simple back-end integration on top of CMOS electronics.