Coherent Plasmonic Interconnection in Silicon-Based Electrical Circuit

Aihara, Takuma; Sakai, Hiroki; Takeda, Atsushi; Okahisa, S.; Fukuhara, Minoru; Ota, Masahiro; Ishii, Yuya; Fukuda, Mitsuo

doi:10.1109/jlt.2015.2395537

Cited by 21 publications

(7 citation statements)

References 26 publications

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“…In addition to the plasmonic intensity signal transmission, coherent signal transmissions could be performed when highcoherence (i.e., narrow spectral linewidth) optical sources were used. We previously reported on the feasibility of coherent signal transmission through a plasmonic waveguide integrated metal-oxide-semiconductor field-effect transistors (MOSFETs) using a self-delayed homodyne technique [32], [33]. In those studies, we observed beat signals with a peak at 0 Hz outputted from a MOSFET.…”

Section: Figure 6 Spp Propagation Length On Au Surface As a Function Of Oscillation Frequency Based On The Drude Modelmentioning

confidence: 97%

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Feasibility of Plasmonic Circuits in Nanophotonics

et al. 2020

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The configuration of plasmonic circuits comprising SiO2-load waveguides and their characteristics within the nanophotonic range are presented and compared with electronic and lightwave circuits in 1300 and 1550 nm wavelength bands. In the nanophotonic range of less than 1 m, plasmonic signals propagate in narrow waveguides with cross-sections less than a few hundred square nanometers, while lightwaves exhibit only slight propagation in high-refractive-index (i.e., Si) waveguides owing to the transmission loss increase via the cut-off wavelength of the waveguide. Additionally, the plasmonic signal transmission loss is lower than that of electric signals for transmission lengths less than a few hundred micrometers. During signal transmission, a narrow spectral width of the plasmonic signals is needed to suppress any signal shape deformation induced by the frequency dependence of the collective oscillation of electrons in plasmonic signals. In the nanophotonic range, the degree of integration for plasmonic circuits is not governed by the transmission loss but by the leak distance of the plasmonic signal optical field from the side-walls of the waveguides and components. Employing a metal/insulator/metal structure in plasmonic circuits is a valid way to heighten the integration density, and its effectiveness is numerically and experimentally confirmed in a plasmonic multiplexer less than 1 m in length. On the basis of these results, the feasibility of plasmonic circuits is discussed and it can be said that plasmonic circuits including waveguides and components are promising photonic techniques for signal transmission in the nanophotonic range.INDEX TERMS Integrated circuit, Integrated optics, Integrated optoelectronics, Nanophotonics, Optical interconnection, Plasmonics, Surface plasmon polariton, Wavelength division multiplexing. I. INTRODUCTIONPhotonics has historically been used to support daily life of our society, and the techniques in the field are indispensable for constructing and maintaining societal infrastructure. These techniques require key photonic components whose scale and power consumption requirements are being reduced as technology advances. Recently, optical interconnects have begun to be used in silicon integrated circuits (ICs) to enhance the information processing speed and catch up with the explosive increase in information demand. The lightwave circuits of interconnects typically comprise silicon waveguides that possess a relatively high refractive index. In the range of less than sub-wavelength optics, however, photonic crystals and high-refractive-index waveguides using lightwaves as signals are physically difficult to apply to circuits [1].At such small scales, surface plasmon polariton (SPP) waveguides are effective for constructing nanophotonic circuits. Various kinds of plasmonic waveguides have been developed and reported, such as index waveguides [2]-[5], grooved waveguides [6], [7], hybrid waveguides [8]-[10], and metal/insulator/metal (MIM) structured waveguides [11]-[16]. These v...

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Section: Figure 6 Spp Propagation Length On Au Surface As a Function Of Oscillation Frequency Based On The Drude Modelmentioning

confidence: 97%

“…In this technique, the transmitted signal intensity is amplified with the local oscillator via the beating. Using the optical heterodyne detection technique, the transmitted plasmonic signals have been amplified by approximately 14 dB by mixing the transmitted signals and the local oscillator [32].…”

Section: Signal Multiplexingmentioning

confidence: 99%

Feasibility of Plasmonic Circuits in Nanophotonics

et al. 2020

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“…Ref. [89] has presented a gold/silicon based monolithic integrated circuit consisting of a gold film plasmonic waveguide. It is demonstrated that SPPs can be used as a coherent carrier in a circuit, capable of providing highly integrated optical interconnects for data processing applications.…”

Section: Pics Based On Spp Modesmentioning

confidence: 99%

Miniaturized Photonic and Microwave Integrated Circuits Based on Surface Plasmon Polaritons

Yao¹,

He²,

Zhang³

et al. 2022

PIER

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Photonic integrated circuits (PICs) and microwave integrated circuits (MICs) have been widely studied, but both of them face the challenge of miniaturization. On one hand, the construction of photonic elements requires spaces proportional to wavelength, and on the other hand, electromagnetic compatibility issues make it challenging to reach high-density layouts for MICs. In this paper, we review the research advances of miniaturized PICs and MICs based on surface plasmon polaritons (SPPs). By introducing SPPs, miniaturized photonic elements at subwavelength scales are realized on PICs, which can be used for highly integrated interconnects, biosensors, and visible light wireless communications. For MICs, since the metals behave as perfect conductors rather than plasmonic materials at microwave frequencies, plasmonic metamaterials are proposed to support spoof SPPs. Spoof SPPs possess similar characteristics to SPPs and can be used to realize high-density channels on MICs. Moreover, combining the latest theoretical research on SPPs, future tendencies of SPP-based MICs are discussed as well, including further miniaturization, digitization, and systematization.

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“…Moreover, compared to silicon-based OPAs where a considerable part of power is emitted into the substrate layer 10 , 15 (the upward and downward emissions are at the same level), the proposed POPA is free of the energy leakage into the substrate side. These features make the proposed POPA a promising building block for plasmonic IC applications such as the construction of on-chip optical wireless nanolinks 22 , integrated plasmonic lasers 23 , 24 and nanoantenna couplers between photons and plasmonic integrated circuits 20 , 25 , 26 . Furthermore, considering the plasmonic nature of the proposed POPA, the influence of the delocalized surface plasmons 27 – 31 on the proposed POPA is investigated.…”

Section: Introductionmentioning

confidence: 99%

All-plasmonic Optical Phased Array Integrated on a Thin-film Platform

Zeng

Chen

et al. 2017

Sci Rep

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Optical phased arrays have been demonstrated to enable a variety of applications ranging from high-speed on-chip communications to vertical surface emitting lasers. Despite the prosperities of the researches on optical phased arrays, presently, the reported designs of optical phased arrays are based on silicon photonics while plasmonic-based optical phased arrays have not been demonstrated yet. In this paper, a passive plasmonic optical phased array is proposed and experimentally demonstrated. The beam of the proposed plasmonic optical phased array is steerable in the far-field area and a high directivity can be achieved. In addition, radio frequency phased array theory is demonstrated to be applicable to the description of the coupling conditions of the delocalized surface plasmons in optical phased arrays and thus the gap between the phased arrays at two distinctly different wavelengths can be bridged. The potential applications of the proposed plasmonic phased arrays include on-chip optical wireless nanolinks, optical interconnections and integrated plasmonic lasers.

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Coherent Plasmonic Interconnection in Silicon-Based Electrical Circuit

Cited by 21 publications

References 26 publications

Feasibility of Plasmonic Circuits in Nanophotonics

Feasibility of Plasmonic Circuits in Nanophotonics

Miniaturized Photonic and Microwave Integrated Circuits Based on Surface Plasmon Polaritons

All-plasmonic Optical Phased Array Integrated on a Thin-film Platform

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