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We present the theory and experimental realization of simultaneously localized and strongly coupled optical and mechanical modes in periodic nanostructures. The mechanical properties of localized phonons with Gigahertz frequencies and sub-picogram masses are studied via all-optical measurements.
We describe an optical network-on-chip built from passive wavelength routing circuits and tunable micro transmitters based on microdisk sources. Operation of the different subcomponents will be demonstrated.
A new cavity-optomechanical system has been developed comprised of two doubly-clamped silicon nitride cantilevers with a 1D photonic crystal etched into them. We will discuss the optical properties of the system and potential applications to solid-state cavity QED with diamond color centers.
We report break-up of cylindrical shell into well-ordered filament arrays by optical-fiber thermal drawing. Enhanced photosensitivity of centimeter-long crystalline-Se nano-filaments is observed and the mechanism is discussed. This work paves a way to in-fiber nanodevices.
Interferometric lithography provides a facile technique for the fabrication of large-areas of nanophotonic structures. Examples of both linear and nonlinear responses will be drawn from plasmonics, metamaterials, and photonic crystals.
We report plasmonic Fabry-Perot nano-cavities formed by high aspect ratio metal mirrors on a metal surface. Quality factors from 100-200 were obtained, limited by plasmonic losses and fin scattering at short and long wavelengths respectively.
We propose a technique for sub-diffractional focusing in the far field of optical elements. The method combines subwavelength analogs of Fresnel lenses and planar anisotropic metamaterials, used to generate and propagate sub-diffractional information, respectively.
A new method for nano-engineering the optical antenna properties of scanning probe tips by combining focused ion beam milling with nano-CVD is presented. We demonstrate the capabilities by probing specific vector-field components of plasmonic nanostructures.
A bottom-up approach based on template-directed colloidal self-assembly was used for fabricating metal nanocluster based matematerials and their optical properties were studied experimentally. Negative index material composed of nanoclusters and metal wires was numerically demonstrated.
We use Bessel beam optical traps to self-position arrays of microsphere objectives near surfaces. Pulsed laser illumination of these objectives is used to perform near-field direct-write subwavelength optical nanopatterning with 100 nm feature sizes.
The field of optics is finding myriad applications in information technology, health care, lighting, sensing and national security. This paper explores the role of nanotechnology with special focus on nanophotonics in dielectric and inhomogeneous metamaterials with applications for optical information processing in space and time, communications, and sensing.
We demonstrate the design, fabrication and experimental characterization of the spatial mode selector that transmit only the second silicon waveguide mode. Nanofabrication results and near field measurements are presented.
We present a high resolution extreme ultraviolet patterning approach based on Talbot self imaging and holographic projection imaging using for illumination a table top extreme ultraviolet laser.
We report nanophotonic energy up-conversion operation in ZnO nanorod double-quantum-well structures assisted by the optical absorption of phonons via an optical near-field.
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