Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes

doi:10.1126/science.abb1570

GSTDTAP > 气候变化

DOI	10.1126/science.abb1570
	Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes
	Itai Epstein; David Alcaraz; Zhiqin Huang; Varun-Varma Pusapati; Jean-Paul Hugonin; Avinash Kumar; Xander M. Deputy; Tymofiy Khodkov; Tatiana G. Rappoport; Jin-Yong Hong; Nuno M. R. Peres; Jing Kong; David R. Smith; Frank H. L. Koppens
	2020-06-12
发表期刊	Science
出版年	2020
英文摘要	The ability to confine light to volumes much smaller than the wavelength produces high electromagnetic fields that can then be exploited in chemical and biological sensing and detection applications. Using silver nanocubes placed on a graphene surface, Epstein et al. developed a single, nanometer-scale acoustic graphene plasmon cavity device that can confine mid-infrared and terahertz radiation with mode volume confinement factors of 5 × 1010. With the response being dependent on the size of the nanocube and electrically tunable, the results demonstrate a powerful platform with which to develop sensors in what has been a challenging wavelength regime where molecular fingerprints reside. Science , this issue p. [1219][1] Acoustic graphene plasmons are highly confined electromagnetic modes carrying large momentum and low loss in the mid-infrared and terahertz spectra. However, until now they have been restricted to micrometer-scale areas, reducing their confinement potential by several orders of magnitude. Using a graphene-based magnetic resonator, we realized single, nanometer-scale acoustic graphene plasmon cavities, reaching mode volume confinement factors of ~5 × 1010. Such a cavity acts as a mid-infrared nanoantenna, which is efficiently excited from the far field and is electrically tunable over an extremely large broadband spectrum. Our approach provides a platform for studying ultrastrong-coupling phenomena, such as chemical manipulation via vibrational strong coupling, as well as a path to efficient detectors and sensors operating in this long-wavelength spectral range. [1]: /lookup/doi/10.1126/science.abb1570
领域	气候变化 ; 资源环境
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引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/274465
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Itai Epstein,David Alcaraz,Zhiqin Huang,et al. Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes[J]. Science,2020.
APA	Itai Epstein.,David Alcaraz.,Zhiqin Huang.,Varun-Varma Pusapati.,Jean-Paul Hugonin.,...&Frank H. L. Koppens.(2020).Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes.Science.
MLA	Itai Epstein,et al."Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes".Science (2020).