Search Results - "Goldflam, M D"
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Ultrafast optical switching of infrared plasmon polaritons in high-mobility graphene
Published in Nature photonics (01-04-2016)“…Non-equilibrium photoinduced plasmons in a high-mobility graphene monolayer are investigated at infrared wavelengths. The success of metal-based plasmonics for…”
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2
Graphene on hexagonal boron nitride as a tunable hyperbolic metamaterial
Published in Nature nanotechnology (01-08-2015)“…The amplitude and wavelength of hyperbolic phonon polaritons in hexagonal boron nitride can be tuned using a monolayer graphene gate. Hexagonal boron nitride…”
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3
Edge and Surface Plasmons in Graphene Nanoribbons
Published in Nano letters (09-12-2015)“…We report on nano-infrared (IR) imaging studies of confined plasmon modes inside patterned graphene nanoribbons (GNRs) fabricated with high-quality…”
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4
Soliton superlattices in twisted hexagonal boron nitride
Published in Nature communications (25-09-2019)“…Properties of atomic van der Waals heterostructures are profoundly influenced by interlayer coupling, which critically depends on stacking of the proximal…”
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5
Imaging the Localized Plasmon Resonance Modes in Graphene Nanoribbons
Published in Nano letters (13-09-2017)“…We report a nanoinfrared (IR) imaging study of the localized plasmon resonance modes of graphene nanoribbons (GNRs) using a scattering-type scanning near-field…”
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6
Tunneling Plasmonics in Bilayer Graphene
Published in Nano letters (12-08-2015)“…We report experimental signatures of plasmonic effects due to electron tunneling between adjacent graphene layers. At subnanometer separation, such layers can…”
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7
Plasmons in graphene moiré superlattices
Published in Nature materials (01-12-2015)“…Moiré patterns are periodic superlattice structures that appear when two crystals with a minor lattice mismatch are superimposed. A prominent recent example is…”
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8
Voltage switching of a VO2 memory metasurface using ionic gel
Published in Applied physics letters (28-07-2014)“…We demonstrate an electrolyte-based voltage tunable vanadium dioxide (VO2) memory metasurface. Large spatial scale, low voltage, non-volatile switching of…”
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9
Sum-rule constraints on the surface state conductance of topological insulators
Published in Physical review letters (11-09-2015)“…We report the Drude oscillator strength D and the magnitude of the bulk band gap E_{g} of the epitaxially grown, topological insulator (Bi,Sb)_{2}Te_{3}. The…”
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10
Model for quantitative tip-enhanced spectroscopy and the extraction of nanoscale-resolved optical constants
Published in Physical review. B, Condensed matter and materials physics (25-08-2014)“…Near-field infrared spectroscopy by elastic scattering of light from a probe tip resolves optical contrasts in materials at dramatically subwavelength scales…”
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11
Enhanced infrared detectors using resonant structures combined with thin type-II superlattice absorbers
Published in Applied physics letters (19-12-2016)“…We examined the spectral responsivity of a 1.77 μm thick type-II superlattice based long-wave infrared detector in combination with metallic nanoantennas…”
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12
Reconfigurable gradient index using VO2 memory metamaterials
Published in Applied physics letters (25-07-2011)“…We demonstrate tuning of a metamaterial device that incorporates a form of spatial gradient control. Electrical tuning of the metamaterial is achieved through…”
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13
Effects of electron doping level on minority carrier lifetimes in n-type mid-wave infrared InAs/InAs1−xSbx type-II superlattices
Published in Applied physics letters (26-12-2016)“…The minority carrier lifetime (τMC ) and equilibrium electron concentration (i.e., the doping level, n 0) are both important values that directly determine…”
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14
Monolithically fabricated tunable long-wave infrared detectors based on dynamic graphene metasurfaces
Published in Applied physics letters (11-05-2020)“…Here, the design, fabrication, and characterization of an actively tunable long-wave infrared detector, made possible through direct integration of a…”
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15
Edge and surface plasmons in graphene nanoribbons
Published 21-12-2015“…Nano Lett. 15, 8271-8276 (2015) We report on nano-infrared (IR) imaging studies of confined plasmon modes inside patterned graphene nanoribbons (GNRs)…”
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16
Model for quantitative tip-enhanced spectroscopy and the extraction of nanoscale-resolved optical constants
Published 30-06-2014“…Phys. Rev. B 90, 085136 (2014) Near-field infrared spectroscopy by elastic scattering of light from a probe tip resolves optical contrasts in materials at…”
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17
Tunneling Plasmonics in Bilayer Graphene
Published 31-08-2015“…Nano Lett. 15, 4973-4978 (2015) We report experimental signatures of plasmonic effects due to electron tunneling between adjacent graphene layers. At…”
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18
Two-dimensional reconfigurable gradient index memory metasurface
Published in Applied physics letters (03-06-2013)“…Creation and control of spatial gradients in electromagnetic properties is a central theme underlying optical device design. In this work, we demonstrate that…”
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19
Voltage switching of a VO{sub 2} memory metasurface using ionic gel
Published in Applied physics letters (28-07-2014)“…We demonstrate an electrolyte-based voltage tunable vanadium dioxide (VO{sub 2}) memory metasurface. Large spatial scale, low voltage, non-volatile switching…”
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20
Reconfigurable Gradient Index using VO2 Memory Metamaterials
Published 17-08-2011“…Appl. Phys. Lett. 99, 044103 (2011) We demonstrate tuning of a metamaterial device that incorporates a form of spatial gradient control. Electrical tuning of…”
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