Nanoscale Conducting Oxide PlasMOStor

Lee, Ho W.; Papadakis, Georgia T.; Burgos, Stanley P.; Chander, Krishnan; Kriesch, Arian; Pala, Ragıp; Peschel, Ulf; Atwater, Harry A.

doi:10.1021/nl502998z

Cited by 281 publications

(268 citation statements)

References 46 publications

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“…Research on plasmonics has become a flourishing field with numerous applications [11,12], including metamaterials and metasurfaces [13,14], sub-diffraction-limited imaging [15], lasers [16], and cloaking [17]. Plasmonics could also be used to enhance the performance of photovoltaic devices [18,19], photodetectors and modulators [2,20], and environmental sensors [21,22].…”

Section: Introductionmentioning

confidence: 99%

Harvesting the loss: surface plasmon-based hot electron photodetection

2016

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Abstract:Although the nonradiative decay of surface plasmons was once thought to be only a parasitic process within the plasmonic and metamaterial communities, hot carriers generated from nonradiative plasmon decay offer new opportunities for harnessing absorption loss. Hot carriers can be harnessed for applications ranging from chemical catalysis, photothermal heating, photovoltaics, and photodetection. Here, we present a review on the recent developments concerning photodetection based on hot electrons. The basic principles and recent progress on hot electron photodetectors are summarized. The challenges and potential future directions are also discussed.

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Section: Introductionmentioning

confidence: 99%

Harvesting the loss: surface plasmon-based hot electron photodetection

2016

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“…This corresponds to a high background carrier concentration of the order 10 19 − 10 21 / cm 3 and it dictates the use of dielectric materials with high electrical breakdown fields. The TCO we investigate in this work is indium tin oxide (ITO), which has been studied extensively in the literature [32,33,[38][39][40][41]. We model ITO with a Drude model, which provides an adequate and accurate description of its permittivity in the visible-IR regime [32,33,39,41,42].…”

Section: A Electronic Properties: High-strength Dielectrics and Tcosmentioning

confidence: 99%

“…The TCO we investigate in this work is indium tin oxide (ITO), which has been studied extensively in the literature [32,33,[38][39][40][41]. We model ITO with a Drude model, which provides an adequate and accurate description of its permittivity in the visible-IR regime [32,33,39,41,42]. ITO can be heavily doped using rf sputter deposition, yielding a carrier concentration in the range 10 19 − 10 21 / cm 3 with a plasma frequency in the infrared range.…”

Section: A Electronic Properties: High-strength Dielectrics and Tcosmentioning

confidence: 99%

“…Among these, field effect modulation is particularly attractive because of its robustness and very low power dissipation in steady state. It has recently been investigated for optical modulators [32][33][34][35][36] by using the spectral tunability of the electronic properties in transparent conductive oxides or transition-metal nitrides [37] for modulating the modal effective index in waveguide configurations.…”

Section: Introductionmentioning

confidence: 99%

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Field-effect induced tunability in hyperbolic metamaterials

Papadakis

Atwater

2015

Phys. Rev. B

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We demonstrate that use of the field effect enables tuning of the effective optical parameters of a layered hyperbolic metamaterial at optical frequencies. Field effect gating electrically modulates the permittivity in transparent conductive oxides via changes in the carrier density. These permittivity changes lead to active modulation of the effective electromagnetic parameters along with active control of the anisotropic dispersion surface of hyperbolic metamaterials and enable the opening and closing of photonic band gaps. Tunability of effective electric permittivity and magnetic permeability also leads to topological transitions in the optical dispersion characteristics. KeywordsHyperbolic metamaterials (HMM), isofrequency contour, density of optical states, epsilon near zero (ENZ), epsilon near pole (ENP), field effect, transparent conductive oxide (TCO), indium tin oxide (ITO), metal-oxide-semiconductor (MOS)

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“…Since they support waveguide modes which are confined in a region with dimensions smaller than the diffraction limit, they can be used to implement highly integrated optoelectronic devices. [1][2][3][4] For this reason, they have attracted a lot of attention for more than a decade. While a plethora of nanoplasmonic waveguides have been studied, silicon-based hybrid plasmonic waveguides are prominent.…”

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confidence: 99%

Experimental investigation of plasmofluidic waveguides

Shin

Kwon

2015

Applied Physics Letters

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Plasmofluidic waveguides are based on guiding light which is strongly confined in fluid with the assistance of a surface plasmon polariton. To realize plasmofluidic waveguides, metal-insulator-silicon-insulator-metal (MISIM) waveguides, which are hybrid plasmonic waveguides fabricated using standard complementary metal-oxide-semiconductor technology, are employed. The insulator of the MISIM waveguide is removed to form 30-nm-wide channels, and they are filled with fluid. The plasmofluidic waveguide has a subwavelength-scale mode area since its mode is strongly confined in the fluid. The waveguides are experimentally characterized for different fluids. When the refractive index of the fluid is 1.440, the plasmofluidic waveguide with 190-nm-wide silicon has propagation loss of 0.46 dB/μm; the coupling loss between it and an ordinary silicon photonic waveguide is 1.79 dB. The propagation and coupling losses may be reduced if a few fabrication-induced imperfections are removed. The plasmofluidic waveguide may pave the way to a dynamically phase-tunable ultracompact device.

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Nanoscale Conducting Oxide PlasMOStor

Cited by 281 publications

References 46 publications

Harvesting the loss: surface plasmon-based hot electron photodetection

Harvesting the loss: surface plasmon-based hot electron photodetection

Field-effect induced tunability in hyperbolic metamaterials

Experimental investigation of plasmofluidic waveguides

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