Strong and broadly tunable plasmon resonances in thick films of aligned carbon nanotubes
arXiv:1706.07820 · doi:10.1021/acs.nanolett.7b02522
Abstract
Low-dimensional plasmonic materials can function as high quality terahertz and infrared antennas at deep subwavelength scales. Despite these antennas' strong coupling to electromagnetic fields, there is a pressing need to further strengthen their absorption. We address this problem by fabricating thick films of aligned, uniformly sized carbon nanotubes and showing that their plasmon resonances are strong, narrow, and broadly tunable. With thicknesses ranging from 25 to 250 nm, our films exhibit peak attenuation reaching 70%, quality factors reaching 9, and electrostatically tunable peak frequencies by a factor of 2.3x. Excellent nanotube alignment leads to the attenuation being 99% linearly polarized along the nanotube axis. Increasing the film thickness blueshifts the plasmon resonators down to peak wavelengths as low as 1.4 micrometers, promoting them to a new near-infrared regime in which they can both overlap the S11 nanotube exciton energy and access the technologically important infrared telecom band.
arXiv comment19 pages, 5 figures, main text followed by supporting information
References in corpus (16)
- Graphene plasmonics: A platform for strong light-matter interaction
- Manipulating infrared photons using plasmons in transparent graphene superlattices
- Total light absorption in graphene
- Graphene field effect transistors as room-temperature Terahertz detectors
- Mid-infrared plasmons in scaled graphene nanostructures
- Microcavity-integrated graphene photodetector
- Sensitive Room-Temperature Terahertz Detection via Photothermoelectric Effect in Graphene
- Novel hyperbolic metamaterials based on multilayer graphene structures
- Carbon Nanotube Terahertz Polarizer
- Uncooled Carbon Nanotube Photodetectors
- Plasmonic Nature of the Terahertz Conductivity Peak in Single-Wall Carbon Nanotubes
- Tunable phonon-induced transparency in bilayer graphene nanoribbons
- Optical response of finite-length carbon nanotubes
- Ultra-Efficient Coupling of a Quantum Emitter to the Tunable Guided Plasmons of a Carbon Nanotube
- Coherent plasmon and phonon-plasmon resonances in carbon nanotubes
- Coupling of Plasmon Modes in Graphene Microstructures
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- Electrically Driven Hyperbolic Nanophotonic Resonators as High Speed, Spectrally Selective Thermal Radiators
- Controlled Exciton-Plasmon Coupling in a Mixture of Ultrathin Periodically Aligned Single-Wall Carbon Nanotube Arrays
- Tunable Hyperbolic Metamaterials Based on Self-Assembled Carbon Nanotubes