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Symposium 1: Functional Metastructures and Nanomaterials: Properties, Fabrication and Modeling IV

10:30 Keynote talk : Electronically Tunable Metamaterials

Harry A. Atwater (1),Georgia Papadakis (1),Michelle C. Sherrott (1),Victor W. Brar (1),Min S. Jang (2),Seyoon Kim (1),Laura Kim (1),Mansoo Choi (2),Luke A. Sweatlock (3)

(1)California Institute of Technology (USA) , (2)Seoul National University (Korea) , (3)Northrop Grumman Aerospace Systems (USA)

In recent years, the progress in optical metamaterials has led to new physics such as near zero optical parameters, diverging density of states and optical band structure engineering. We discuss several approaches for achieving dynamically gate-tunable metamaterials and metasurfaces, including finite-thickness layered metamaterials and metasurfaces using conducting oxide thin films as active elements and active, gate-tunable radiative emission from graphene metamaterials.
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11:00 Invited talk : Resonant Dipole Nanoantenna Arrays for Enhanced Terahertz Spectroscopy

Andrea Toma (1),Salvatore Tuccio (1),Mirko Prato (1),Francesco De Donato (1),Andrea Perucchi (2),Paola Di Pietro (2),Sergio Marras (1),Carlo Liberale (1),Remo Proietti Zaccaria (1),Francesco De Angelis (1),Liberato Manna (1),Stefano Lupi (3),Enzo Di Fabrizio (4),Luca Razzari (5)

(1)INRS-EMT (Italy) , (2)INSTM UdR Trieste-ST and Sincrotrone Trieste (Italy) , (3)Universita di Roma La Sapienza (Italy) , (4)King Abdullah University of Science and Technology (Saudi Arabia) , (5)INRS Energie-Materiaux et Telecommunications (Canada)

Our recent studies on dipole nanoantenna arrays resonating in the terahertz frequency range (0.1- 10 THz) will be presented. The main near- and far-field properties of these nanostructures will be shown and their application in enhanced terahertz spectroscopy of tiny quantities of nanomaterials will be discussed.
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11:20 Invited talk : Aluminum nanostructures for UV plasmonics

Julien Proust, Silvère Schuermans, Dmitry Khlopin, Feifei Zhang, Jerome Martin, Davy Gerard, Thomas Maurer, Jerome Plain

University of Troyes (France)

We report on the synthesis of aluminum nanoparticles by different ways. For all the different technique, the optical properties have been carefully studied. Particularly, it appears that the chemical ways induce hybrid metal / oxyde nanoparticles showing a strong photoluminescence.
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11:40 Invited talk : The Design and Fabrication of Aluminum-based Nano-hole Arrays Using Nanosphere Lithography

Morgan McElhiney (1),Mark Mirotznik (1),Z. Zander (2),Brendan DeLacy (2)

(1)University of Delaware (USA) , (2)U.S. Army Edgewood Chemical Biological Center (USA)

We detail the computational design, fabrication and optical characterization of an aluminum-based nano-hole array. Arrays of aluminum nano-holes were patterned on a silica-coated aluminum base mirror plane using nanosphere lithography. This architecture provided a means of exploring the coupling of the localized surface plasmon resonance (LSPR) exhibited by the aluminum nano-hole array with the Fabry-Perot cavity resonance that is generated within the silica spacer layer. Finite difference time domain (FDTD) calculations and infrared spectroscopy were used to design and characterize the structures, respectively.
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12:00 Invited talk : Semiconductor Nanowires for Optoelectronic Device Applications

Chennupati Jagadish

Australian National University (Australia)

In this talk, I will review recent progress in III- V compound semiconductor nanowire research and discuss ways to control the size, shape, composition and crystal phase in turn their electrical and optical properties I will present results on devices such as nanowire lasers, nanowire THz detectors, nanowire solar cells and nanowire plasmonics.
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