Carbon Nanotube Terahertz Detector

He, Xiaowei; Fujimura, Naoki; Lloyd, J Meagan; Erickson, Kenneth L.; Talin, A. Alec; Zhang, Qi; Gao, Weilu; Jiang, Qijia; Kawano, Yukio; Hauge, Robert H.; Léonard, François; Kono, Junichiro

doi:10.1021/nl5012678

Cited by 226 publications

(174 citation statements)

References 41 publications

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“…At terahertz frequencies, it could enable tunable lasers and receivers for use in terabit-per-second wireless communications [14][15][16]. Ultra-broadband nanotube plasmonic circuitry could be naturally integrated with high-performance nanotube transistors.…”

Section: Main Textmentioning

confidence: 99%

Coherent Plasmon and Phonon-Plasmon Resonances in Carbon Nanotubes

Falk¹,

Chiu

Farmer³

et al. 2017

Phys. Rev. Lett.

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Carbon nanotubes provide a rare access point into the plasmon physics of one-dimensional electronic systems. By assembling purified nanotubes into uniformly sized arrays, we show that they support coherent plasmon resonances, that these plasmons enhance and hybridize with phonons, and that the phonon-plasmon resonances have quality factors as high as 10. Because coherent nanotube plasmonics can strengthen light-matter interactions, it provides a compelling platform for surface-enhanced infrared spectroscopy and tunable, high-performance optical devices at the nanometer scale. Main textPlasmons in carbon nanotubes [1][2][3][4][5] comprise longitudinal charge oscillations coupled to infrared or terahertz optical fields. They can either propagate [3][4][5] or be confined to FabryPérot resonators by reflections at the nanotube ends [6][7][8][9][10] (Fig. 1(a)). Propagation losses are low [3], and the resonant frequencies and absorption coefficients can be controlled via the length [8,10] and doping level [7,9] of the nanotubes. The intense concentration of electromagnetic fields deriving from the nanotubes' one dimensionality allows the plasmons both to confine light to the nanometer scale and to enhance light-matter interactions by Purcell factors that are predicted to be as high as 10 6 [5].At infrared frequencies, nanotube plasmonics could lead to highly sensitive absorption spectroscopy through surface enhanced infrared absorption (SEIRA) [11][12][13]. At terahertz frequencies, it could enable tunable lasers and receivers for use in terabit-per-second wireless communications [14][15][16]. Ultra-broadband nanotube plasmonic circuitry could be naturally integrated with high-performance nanotube transistors.However, nanotube plasmonics has been frustrated by the material quality of nanotube films. In inhomogeneous nanotube films, with a broad distribution of lengths, diameters and/or doping levels, plasmons resonating at different frequencies quickly lose phase coherence with each other, leading to fast dissipation. The quality (Q) factor, which is the quotient of the resonant angular frequency and the dissipation rate, is therefore low. To date, this inhomogeneity has limited observations of nanotube plasmon resonators to the incoherent Q ≪ 1 regime [6][7][8][9][10]. Because dissipation constrains nearly all applications of plasmonics, the demonstration of high Q * Contact: alfalk@us.ibm.com 2 resonators would provide crucial evidence that nanotubes are a technologically viable plasmonic material.In this work, we show that coherent nanotube plasmon and phonon-plasmon resonances can have ensemble Q factors as high as 10. The key to our demonstration is our exceptionally uniform nanotube films, which we develop using Langmuir-Schaeffer techniques [17]. We conservatively estimate that our nanotube resonators confine an electromagnetic field whose free-space wavelength (λ0) is 8 µm to a mode volume (V) of 0.002 µm 3 . With this combination of Q and optical concentration (λ / = 300,000), the Purcell factor by w...

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Section: Main Textmentioning

confidence: 99%

Coherent Plasmon and Phonon-Plasmon Resonances in Carbon Nanotubes

Falk¹,

Chiu

Farmer³

et al. 2017

Phys. Rev. Lett.

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“…Despite the fact that localized plasmons in individual CNTs were successfully predicted and observed recently [33][34][35][36], very few papers report on the study of propagating SPs excited in the bulk CNT film. It was shown that SWCNT films could be used to create plasmonic and metamaterial devices with tunable response operating in the terahertz spectral range [37,38].…”

Section: Introductionmentioning

confidence: 99%

Midinfrared Surface Plasmons in Carbon Nanotube Plasmonic Metasurface

et al. 2018

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We report an experimental observation of the midinfrared surface plasmon excited in a carbon nanotube plasmonic metasurface. The absorption of a 400-nm-thick single-walled carbon nanotube film perforated with laser-drilled subwavelength holes arranged in a 2D lattice is resonantly enhanced by 75% as compared with the unstructured film. The enhancement of absorption has a resonant behavior associated with the excitation of the surface plasmon and occurs at the wavelengths around 15 μm for the lattice period of 10 μm. The spectral position and the magnitude of the resonance are controlled entirely by the structure geometry and can be tuned in a broad range. We demonstrate that periodic patterning can be applied to tailor the bolometric performance of carbon nanotube thin films. Namely, the voltage response of the metasurface is enhanced by 100% at the wavelength of the plasmon resonance as compared with the unstructured film. We discuss mechanisms of the enhancement and compare experimental results with the finite-difference time-domain and scattering-matrix method simulations.

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“…В основном речь идет о высокой подвижности носителей заряда, возможности перестройки свойств затворным напряжением и влиянии геометрических размеров на параметры зонной струк-туры. Полученные на данный момент результаты [1][2][3][4][5][6] свидетельствуют о перспективности этого направления исследований с точки зрения получения практических результатов.…”

Section: Introductionunclassified

Асимметричные Устройства На Основе Углеродных Нанотрубок Для Детектирования Излучения Терагерцового Диапазона

Федоров¹,

Степанова²,

Газалиев³

et al. 2016

Физика И Техника Полупроводников

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Исследуются различные асимметричные детектирующие устройства на основе углеродных нанотрубок (УНТ). Под асимметрией понимается неоднородность свойств вдоль канала проводимости. В первом типе устройств используется неоднородная морфология УНТ-сетки. Во втором типе устройств в качестве контактного материала используются металлы с сильно различной работой выхода. В работе анализируется связь между чувствительностью и конфигурацией детектора. На основе полученных данных предлагаются подходы к созданию эффективного детектора терагерцового излучения на основе углеродных нанотрубок.

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Carbon Nanotube Terahertz Detector

Cited by 226 publications

References 41 publications

Coherent Plasmon and Phonon-Plasmon Resonances in Carbon Nanotubes

Coherent Plasmon and Phonon-Plasmon Resonances in Carbon Nanotubes

Midinfrared Surface Plasmons in Carbon Nanotube Plasmonic Metasurface

Асимметричные Устройства На Основе Углеродных Нанотрубок Для Детектирования Излучения Терагерцового Диапазона

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