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arXiv · 1511.00124

Mechanical Modulation of Hybrid Graphene Microfiber Structure

Fei Xu·Jin-hui Chen·Yan-qing Lu
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Abstract

Recently, the strain engineering of two-dimensional materials such as graphene has attracted considerable attention for its great potential in functional nanodevices. Here, we theoretically and experimentally investigate the strain manipulation of a graphene-integrated microfiber system for the first time. We analyze the influential factors of strain tuning, i.e., the geometrical parameters of the microfiber, the strain magnitude, and the probe-light wavelength. Moreover, we experimentally achieve in-line modulation as high as 30% with a moderate strain of ~5%, which is two orders of magnitude larger than previous results. The dynamic vibration response is also researched. The broadband, polarization-independent, cost-effective, strain-based modulator may find applications in low-speed modulation and strain sensing. Further, we believe that our platform may allow for all-in fiber engineering of graphene-analogue materials and provide new ideas for graphene-integrated flexible device design.

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Fei Xu, Jin-hui Chen, Yan-qing Lu. 2015-10-31. Mechanical Modulation of Hybrid Graphene Microfiber Structure. https://arxiv.org/abs/1511.00124

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