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Open AccessQuantitative phase contrast imaging with a nonlocal angle-selective metasurface
Phase contrast microscopy has played a central role in the development of modern biology, geology, and nanotechnology. It can visualize the structure of translucent objects that remains hidden in regular optic...
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Article
Metasurface optofluidics for dynamic control of light fields
The ability to manipulate light and liquids on integrated optofluidics chips has spurred a myriad of important developments in biology, medicine, chemistry and display technologies. Here we show how the conver...
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Article
Open AccessNanoelectromechanical modulation of a strongly-coupled plasmonic dimer
The ability of two nearly-touching plasmonic nanoparticles to squeeze light into a nanometer gap has provided a myriad of fundamental insights into light–matter interaction. In this work, we construct a nanoel...
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Exciton resonance tuning of an atomically thin lens
The highly engineerable scattering properties of resonant optical antennas underpin the operation of metasurface-based flat optics. Thus far, the choice of antenna has been limited to shaped metallic and high-...
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Open AccessTransparent multispectral photodetectors mimicking the human visual system
Compact and lightweight photodetection elements play a critical role in the newly emerging augmented reality, wearable and sensing technologies. In these technologies, devices are preferred to be transparent t...
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Open AccessOptical emission near a high-impedance mirror
Solid state light emitters rely on metallic contacts with a high sheet-conductivity for effective charge injection. Unfortunately, such contacts also support surface plasmon polariton and lossy wave excitation...
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Silicon Mie resonators for highly directional light emission from monolayer MoS2
Controlling light emission from quantum emitters has important applications, ranging from solid-state lighting and displays to nanoscale single-photon sources. Optical antennas have emerged as promising tools ...
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Open AccessAnti-Hermitian photodetector facilitating efficient subwavelength photon sorting
The ability to split an incident light beam into separate wavelength bands is central to a diverse set of optical applications, including imaging, biosensing, communication, photocatalysis, and photovoltaics. ...
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Plasmon Printing - a New Approach to Near-Field Lithography
We propose a method for replicating patterns with a resolution well below the diffraction limit, using broad beam illumination and standard photoresist. In particular it is shown that visible exposure (?=410 n...
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Near-field enhancement of infrared intensities for f-f transitions in Er3+ ions close to the surface of silicon nanoparticles
Erbium doped waveguide amplifiers can be used in optical integrated circuits to compensate for signal losses. Such amplifiers use stimulated emission from the first excited state (4 I ...
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Observation of coupled plasmon-polariton modes of plasmon waveguides for electromagnetic energy transport below the diffraction limit
We study the influence of optical near-field interactions on the dipole surface plasmon resonance of Au nanoparticles in closely spaced particle arrays using finite-difference timedomain simulations. In partic...
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SURFACE PLASMON NANOPHOTONICS
In recent years, we have witnessed a flurry of activity in the fundamental research and development of surface plasmon based structures and devices. Surface plasmons are collective charge oscillations that occ...
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Energy transport in metal nanoparticle plasmon waveguides
We investigate the optical properties of arrays of closely spaced metal nanoparticles in view of their potential to guide electromagnetic energy with a lateral mode confinement below the diffraction limit of l...
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Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides
Achieving control of light-material interactions for photonic device applications at nanoscale dimensions will require structures that guide electromagnetic energy with a lateral mode confinement below the dif...
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Chapter
Towards An Er-Doped Si Nanocrystal Sensitized Waveguide Laser — The Thin Line Between Gain And Loss
Current Er-doped planar waveguide amplifiers and lasers make use of a pump laser emitting at 0.98 μm that excites Er3+ ions into their second excited state (4I11/2). From this level, the ions quickly relax non-ra...
