Submitted by admin on
Title | Fast tunable terahertz absorber based on a MEMS-driven metamaterial |
Publication Type | Conference Paper |
Year of Publication | 2017 |
Authors | M Liu, M Susli, D Silva, G Putrino, H Kala, S Fan, M Cole, L Faraone, VP Wallace, WJ Padilla, DA Powell, M Martyniuk, and |
Conference Name | Optics InfoBase Conference Papers |
Date Published | 01/2017 |
Abstract | 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. |
DOI | 10.1364/CLEO_QELS.2017.FM1G.5 |