Joo, H.-J. orcid.org/0000-0002-4923-9771, Liu, J., Chen, M. orcid.org/0009-0003-3201-9603 et al. (14 more authors) (2024) Actively tunable laser action in GeSn nanomechanical oscillators. Nature Nanotechnology. ISSN 1748-3387
Abstract
Mechanical forces induced by high-speed oscillations provide an elegant way to dynamically alter the fundamental properties of materials such as refractive index, absorption coefficient and gain dynamics. Although the precise control of mechanical oscillation has been well developed in the past decades, the notion of dynamic mechanical forces has not been harnessed for developing tunable lasers. Here we demonstrate actively tunable mid-infrared laser action in group-IV nanomechanical oscillators with a compact form factor. A suspended GeSn cantilever nanobeam on a Si substrate is resonantly driven by radio-frequency waves. Electrically controlled mechanical oscillation induces elastic strain that periodically varies with time in the GeSn nanobeam, enabling actively tunable lasing emission at >2 μm wavelengths. By utilizing mechanical resonances in the radio frequency as a driving mechanism, this work presents wide-range mid-infrared tunable lasers with ultralow tuning power consumption.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use (https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms), but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1038/s41565-024-01662-w |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 02 May 2024 14:59 |
Last Modified: | 02 May 2024 14:59 |
Published Version: | https://www.nature.com/articles/s41565-024-01662-w |
Status: | Published online |
Publisher: | Springer |
Identification Number: | 10.1038/s41565-024-01662-w |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:212197 |
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