14 March 2016 Nanometers to centimeters: novel optical nano-antennas, with an eye to scaled production
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Optical nano-antennas have been the focus of intense research recently due to their ability to manipulate electromagnetic radiation on a subwavelength scale, and there is major interest in such devices for a wide variety of applications in photonics, sensing, and imaging. Significant effort has been put into developing highly compact, novel, next-generation light sources, which have great potential in realizing efficient sub-wavelength single photon sources and enhanced biological and chemical sensors. We have developed a number of innovative optical antenna designs including elements of chiral metasurfaces for enabling circularly polarized emission from quantum sources, new designs derived from Radio Frequency (RF) elements for quantum source enhancement and directionality, and nanostructures for investigating plasmonic dark-modes that have the ability to significantly reduce the Q-factor of nano-antennas. A challenge, however, remains the development of a scalable nanofabrication technology. The capacity to mass-produce nano-antennas will have a considerable impact on the commercial viability of these devices, and greatly improve research throughput. Here we present recent progress in the development of scalable fabrication strategies for producing of nano-antennas and antenna arrays, along with slot based plasmonic optical devices.
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Timothy D. James, Timothy D. James, Jasper J. Cadusch, Jasper J. Cadusch, Stuart K. Earl, Stuart K. Earl, Evgeniy Panchenko, Evgeniy Panchenko, Paul Mulvaney, Paul Mulvaney, Timothy J. Davis, Timothy J. Davis, Ann Roberts, Ann Roberts, } "Nanometers to centimeters: novel optical nano-antennas, with an eye to scaled production", Proc. SPIE 9756, Photonic and Phononic Properties of Engineered Nanostructures VI, 97560Z (14 March 2016); doi: 10.1117/12.2210769; https://doi.org/10.1117/12.2210769


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