Terahertz to bits and bits to terahertz: Universally programmable chip-scale terahertz systems

Kaushik Sengupta, Xuyang Lu, Suresh Venkatesh, Xue Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The high millimeter-Wave and Terahertz spectrum above 100 GHz will form the underpinning of a broad set of game-changing future technology including high resolution sensing, imaging, robotics, autonomous systems, and wireless communication. In the last decade, we have seen a tremendous surge in efforts towards enabling chip-scale technology to address signal generation and detection in the THz spectrum. However, there lie several fundamental challenges to translate these efforts into versatile technology that can operate in complex environments that requires properties such as dynamic reconfigurability and rapid adaptability. In this paper, we highlight a new design space that emerges by eliminating the classical block-by-bock design approach. The fundamental principle behind this approach is that the unique wavelength scale at THz (of the order of millimeter/sub-millimeter) is comparable to a typical chip dimension. This wavelength/chip dimension equivalence allows the chip to operate in a new electromagnetic (EM) regime with novel scattering and radiating properties, while the integrated active devices have the ability to actively synthesize, manipulate and sense THz EM fields at sub-wavelength scales. This approach opens up the a new design space that can break many of the trade-offs in the classical design regime. In this paper, we provide design examples that aims towards the ultimate programmable THz sensor/source in silicon-based chips that range from fully integrated chip-scale THz spectroscopes to programmable THz sensors, sources and spatio-temporal modulated arrays for physical layer security. These design examples serve to illustrate the unique opportunities enabled through such a holistic design approach.

Original languageEnglish (US)
Title of host publicationProceedings of the 7th ACM International Conference on Nanoscale Computing and Communication, NanoCom 2020
PublisherAssociation for Computing Machinery, Inc
ISBN (Electronic)9781450380836
DOIs
StatePublished - Sep 23 2020
Event7th ACM International Conference on Nanoscale Computing and Communication, NanoCom 2020 - Virtual, Online, United States
Duration: Sep 23 2020Sep 25 2020

Publication series

NameProceedings of the 7th ACM International Conference on Nanoscale Computing and Communication, NanoCom 2020

Conference

Conference7th ACM International Conference on Nanoscale Computing and Communication, NanoCom 2020
CountryUnited States
CityVirtual, Online
Period9/23/209/25/20

All Science Journal Classification (ASJC) codes

  • Computational Theory and Mathematics
  • Computer Networks and Communications
  • Communication

Keywords

  • 5G
  • 6G
  • imaging
  • millimeter-wave
  • MIMO
  • phased arrays
  • security
  • sensor
  • spectroscopy
  • terahertz
  • wireless communication

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