MEMS-integrated PDMS metasurface designed for autonomous vehicles sensing: A new approach for LiDAR application

Bar Zirinski, Jacob Scheuer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We demonstrate dynamic beam steering by mechanically tuning a flexible 20° beam deflector metasurface made of PDMS. The deflective device is a 2D array consist of resonant sub-wavelength meta atoms operating at 1550 o's. The tuning is obtained by a designated stretching device able to strongly clamp and stretch a flexible metasurface allowing the monitoring and controlling of the applied external strain. Stretching a deflector changes the array geometry which consequently changes the aperture phase function. This results in a continuous change of the deflection angle thus creating a beam scanner. We show the steering range can reach 9.9° with a corresponding stretch ratio of 1.73. These results validates the potential of reconfigurable metasurfaces to yield dynamic beam steering which is an essential building block for both existing and future optical systems.

Original languageEnglish
Title of host publicationOptical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
EditorsSelim M. Shahriar, Jacob Scheuer
PublisherSPIE
ISBN (Electronic)9781510633551
DOIs
StatePublished - 2020
EventOptical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II 2020 - San Francisco, United States
Duration: 1 Feb 20206 Feb 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11296
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II 2020
Country/TerritoryUnited States
CitySan Francisco
Period1/02/206/02/20

Keywords

  • beam scanner
  • mechanical strain
  • reconfigurable metasurface
  • tunability.

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