Browsing by Keywords "Resonance"
Now showing items 21-40 of 59
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Harmonic cantilevers for nanomechanical sensing of elastic properties
(IEEE, 2003-06)We present a micromachined scanning probe cantilever, in which a specific higher order flexural mode is designed to be resonant at an exact integer multiple of the fundamental resonance frequency. We have demonstrated that ... -
High-performance ITO-AlAs/GaAs based resonant cavity enhanced Schottky photodiodes
(IEEE, 1999)The fabrication of ITO (indium tin oxide)-AlAs-based resonant cavity enhanced Schottky photodiodes was examined. The device structure was designed to achieve a low-loss cavity around a 840 nm optical communication window. ... -
High-speed 1.55 μm operation of low-temperature-grown GaAs-based resonant-cavity-enhanced p-i-n photodiodes
(American Institute of Physics, 2004)The 1.55 μm high-speed operation of GaAs-based p-i-n photodiodes was demonstrated and their design, growth and fabrication were discussed. A resonant-cavity-detector structure was used to selectively enhance the photoresponse ... -
High-speed resonant-cavity-enhanced Schottky photodiodes
(IEEE, 1998)The top-illuminated Schottky photodiodes were fabricated by a microwave-compatible monolithic microfabrication process. Fabrication started with formation of ohmic contacts to n+ layers. Mesa isolation was followed by a ... -
Hybrid CFIE-EFIE solution of composite geometries with coexisting open and closed surfaces
(IEEE, 2005)The combined-field integral equation (CFIE) is employed to formulate the electromagnetic scattering and radiation problems of composite geometries with coexisting open and closed conducting surfaces. Conventional formulations ... -
Hybridization of fano and vibrational resonances in surface-enhanced infrared absorption spectroscopy of streptavidin monolayers on metamaterial substrates
(2014)We present spectral hybridization of organic and inorganic resonant materials and related bio-sensing mechanism. We utilized a bound protein (streptavidin) and a Fano-resonant metasurface to illustrate the concept. The ... -
Improved performance of cMUT with nonuniform membranes
(IEEE, 2005-09)When capacitive micromachined ultrasonic transducers are immersed in water, the bandwidth of the device is limited by the membrane's second resonance frequency. At this frequency no mechanical power to immersion medium can ... -
Integral-equation study of ray effects and natural-mode resonances in a 2-D dielectric prism
(IEEE, 2015)We analyze the interplay of two different types of electromagnetic behavior demonstrated by a 2-D dielectric prism: Geometrical Optics and resonance. As it is shown, the first is responsible, for instance, for enhanced ... -
Interaction between a cMUT cell and a liquid medium around the parallel resonance frequency
(IEEE, 2007-10)In this paper, we present how a capacitive micromachined ultrasonic transducer (cMUT) couples to the immersion medium, based on an accurate parametric model. We show that the velocity of cMUT membrane can be written as a ... -
Investigation of metamaterial coated conducting cylinders for achieving transparency and maximizing radar cross section
(IEEE, 2007)Recently, reducing the radar cross sections (RCS) of various structures to achieve transparency and obtaining resonant structures aimed at increasing the electromagnetic intensities, stored or radiated power levels have ... -
Light-controlled microwave whispering-gallery-mode quasi-optical resonators at 50W LED array illumination
(American Institute of Physics Inc., 2015)We present experimental observations of light-controlled resonance effects in microwave whispering-gallery-mode quasi-optical dielectric-semiconductor disk resonators in the frequency band of 5 GHz to 20 GHz arising due ... -
Localized plasmon-engineered spontaneous emission of CdSe/ZnS nanocrystals closely-packed in the proximity of Ag nanoislands
(2007)As a proof-of-concept demonstration, we show that the localized plasmons of metal nanoisland films provide the ability to modify and control the collective spontaneous emission of nanocrystals in their proximity (including ... -
Low-power thermooptical tuning of SOI resonator switch
(IEEE, 2006)A wavelength selective optical switch is developed based on a high-Q racetrack resonator making use of the large thermooptic coefficient of silicon. The racetrack resonator was fabricated using a silicon-on-insulator (SOI) ... -
Magnetic resonance imaging assisted by wireless passive implantable fiducial e-markers
(Institute of Electrical and Electronics Engineers, 2017)This paper reports a wireless passive resonator architecture that is used as a fiducial electronic marker (e-marker) intended for internal marking purposes in magnetic resonance imaging (MRI). As a proof-of-concept ... -
Manipulation of backscattering from a dielectric cylinder of triangular cross-section using the interplay of go-like ray effects and resonances
(Institute of Electrical and Electronics Engineers, 2015)A triangular dielectric cylinder (dielectric prism) of the size, in cross-section, comparable to or moderately larger than the wavelength is a scatterer, which blends together two different types of electromagnetic behavior: ... -
Modeling and feedback control for subsonic cavity flows: a collaborative approach
(IEEE, 2005)Feedback control of aerodynamic flows is attracting the attention of researchers from a wide spectrum of specialties, because of its interdisciplinary nature and the challenges inherent to the problem. One of the main goals ... -
Multi-gap individual and coupled split-ring resonator structures
(Optical Society of American (OSA), 2008)We present a systematic numerical study, validated by accompanied experimental data, of individual and coupled split ring resonators (SRRs) of a single rectangular ring with one, two and four gaps. We discuss the behavior ... -
Multiband one-way polarization conversion in complementary split-ring resonator based structures by combining chirality and tunneling
(OSA - The Optical Society, 2015)Multiband one-way polarization conversion and strong asymmetry in transmission inspired by it are demonstrated in ultrathin sandwiched structures that comprise two twisted aperture-type arrays of complementary split-ring ... -
Non-ideal cloaking based on Fabry-Perot resonances in single-layer high-index dielectric shells
(Optical Society of American (OSA), 2009)Strong reduction of the scattering cross section is obtained for subwavelength dielectric and conducting cylinders without any magnetism for both TE and TM polarizations. The suggested approach is based on the use of ... -
Non-radiative resonance energy transfer in bi-polymer nanoparticles of fluorescent conjugated polymers
(Optical Society of American (OSA), 2010)This work demonstrates the comparative studies of non-radiative resonance energy transfer in bi-polymer nanoparticles based on fluorescent conjugated polymers. For this purpose, poly[(9,9-dihexylfluorene) (PF) as a donor ...
