Fast tunable terahertz absorber based on a MEMS-driven metamaterial

Mingkai Liu, Mohamad Susli, Dilusha Silva, Gino Putrino, Hemendra Kala, Shuting Fan, Michael Cole, Lorenzo Faraone, Vincent P. Wallace, Willie J. Padilla, David A. Powell, Mariusz Martyniuk, Ilya V. Shadrivov

Research output: Chapter in Book/Conference paperConference paperpeer-review


We present an experimental study of ultra-thin tunable THz absorbers based on MEMSdriven metamaterials. Using the high mechanical sensitivity of thin subwavelength metamaterial absorbers, we proposed a paradigm to combine meta-atoms and suspended flat membranes to simultaneously maximize the near-field coupling and avoid resonance broadening. We employed a MEMS technology and successfully fabricated THz absorbers based on integration of meta-atoms and MEMS, demonstrating giant tuning of resonant absorption. The devices presented in this paper are among the best-performing tunable THz absorbers achieved to date, particularly in device thickness and tunability characteristics.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationQELS_Fundamental Science, CLEO_QELS 2017
PublisherOSA - The Optical Society
ISBN (Print)9781943580279
Publication statusPublished - 2017
EventCLEO: QELS_Fundamental Science, CLEO_QELS 2017 - San Jose, United States
Duration: 14 May 201719 May 2017

Publication series

NameOptics InfoBase Conference Papers
VolumePart F42-CLEO_QELS 2017


ConferenceCLEO: QELS_Fundamental Science, CLEO_QELS 2017
Country/TerritoryUnited States
CitySan Jose


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