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Ultrafast All-Optical Switching of Germanium-Based Flexible Metaphotonic DevicesPublished in Wiley-VCH Verlag
2018
PMID: 29327454
Volume: 30
Issue: 9
Incorporating semiconductors as active media into metamaterials offers opportunities for a wide range of dynamically switchable/tunable, technologically relevant optical functionalities enabled by strong, resonant light–matter interactions within the semiconductor. Here, a germanium-thin-film-based flexible metaphotonic device for ultrafast optical switching of terahertz radiation is experimentally demonstrated. A resonant transmission modulation depth of 90% is achieved, with an ultrafast full recovery time of 17 ps. An observed sub-picosecond decay constant of 670 fs is attributed to the presence of trap-assisted recombination sites in the thermally evaporated germanium film. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Postprint Version
Content may be subject to copyright.This is the peer reviewed version of the following article: [Ultrafast All?Optical Switching of Germanium?Based Flexible... ...This is the peer reviewed version of the following article: [Ultrafast All?Optical Switching of Germanium?Based Flexible Metaphotonic Devices. Advanced Materials 30, 9 (2018)], which has been published in final form at https://doi.org/10.1002/adma.201705331. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions: https://authorservices.wiley.com/author-resources/Journal-Authors/licensing/self-archiving.html#3.
About the journal
| Journal | Advanced Materials |
|---|---|
| Publisher | Wiley-VCH Verlag |
| ISSN | 09359648 |
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