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'Antennas' are a well-established concept in the radiowave and microwave regime, but they are conspicuously absent in optical, infrared, and even terahertz technologies. The absence of optical antennas in technological applications is primarily associated with their small scale. Antennas have characteristic dimensions on the order of a wavelength, demanding fabrication accuracies better than 10nm...
Giant Goos-Hänchen effect is detected using TIR spectroscopy, directly observed in surface electromagnetic waves at photonic crystals surfaces using far-field optical microscopy visualization and achieves 100-times enhancement in comparison with dielectric surfaces.
We introduce two new devices, the correlation confocal and twin-photon microscopes. Like the standard two-photon confocal microscope, they use spatially-correlated photon pairs to improve lateral resolution, but with the correlation enforced in different manners.
The plasmonic modes of single-crystalline gold nanoparticle dimers with ultrasmall gaps are investigated. The large mode splitting separates bonding and antibonding modes which can be addressed individually. Q-factors are investigated and compared to FDTD simulations.
AlGaN alloys are recognized as promising materials for applications in optoelectronic devices in deep ultraviolet (DUV) spectral range. Highly conductive (p- and n-type) AlGaN alloys are essential for device applications. Although n-type AlN has been reported by Si doping, further improvements in the material quality and conductivity are still needed for many device applications. One of the major...
In this talk we demonstrate configurations and devices that allow plasmonic assisted guiding and confinement of electromagnetic energy at the nanoscale. We also demonstrate silicon plasmonic Schottky detector for telecom wavelengths.
We show unidirectional emission of a single Q-dot by coupling to a nanofabricated Yagi-Uda antenna. The Q-dot drives the resonant feed element and 82% of the Q-dot emission is emitted in a 12° HWHM angle.
For scalable quantum computation errors occurring during storage and processing need to be continuously corrected. Here we report on the experimental realization of repetitive quantum error correction with trapped ions.
IARPA is pursuing innovative ideas and concepts for advancing standoff biometrics technologies. An emphasis is placed on classifying and recognizing unique human phenomenology acquired from significantly greater ranges than today's commercially available biometrics technology. In October 2007, the Office of the Director of National Intelligence (ODNI) formally established the Intelligence Advanced...
The use of lasers for Electronic Warfare applications will be discussed and reviewed. Specific examples of deployed EW systems which include lasers will be presented along with a discussion of their most salient features.
We use squeezed states of light to implement a robust continuous variable quantum key distribution scheme and an optical Hadamard gate based on coherent state qubits.
Complex inorganic nanoparticles and nanoporous films have been synthesized by ultraviolet decomposition of metal based acetate precursors. Unary, alloyed and oxide crystalline nanoparticles where characterized via transmission electron microscopy.
We present development of a lithographic strategy based on multiphoton-excited crosslinking of proteins and other biological molecules. Application of this approach to study cultured cells in physiologically relevant, 3D microenvironments will be discussed.
I will focus on tracking cancer cells, immune cells, and stem cells in vivo using (i) intravital microscopy for 3D tissue imaging, and (ii) in vivo flow cytometry for detection and quantification of circulating cells.
We present a new approach for accurate calculation of atomic polarizabilities, apply it to evaluate BBR shifts in optical clock transitions in Al+, B+ and In+, and find uncertainties below 10−18 in some cases.
SiOnyx is developing ultrafast laser processing techniques that improve the performance of semiconductor based photodetectors, solar cells, and image sensors. Ultrafast laser processing offers the unique ability to locally engineer the structural and doping characteristics of semiconductor devices and avoid adverse side effects. Ultrafast laser processing is incorporated into a variety of devices...
This lecture will review nonlinear interactions and adaptive optics techniques which permit a dynamic correction of beam distortions in solid-state lasers. Applications of these techniques including beam combining to fiber lasers will be also presented.
We observe an enhancement of the spontaneous emission from a single trapped ytterbium ion into a cavity QED system. This technique helps to scale up an ion-photon quantum network.
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