Symposium 2: Industrial applications of metamaterials I
10:20 Invited talk : Industrial Applications of Metamaterials at Raytheon
J. W. A Wehner, J. Kasemodel, V. Shukunov, J. Puschell, R. K. Dodds
Raytheon (USA) This paper discusses the metamaterials currently under investigation for applications at Raytheon. Electro-optical metamaterial devices for reducing dark current, improving device performance and functionality and enhancing capability will be discussed. Some longer wavelength (RADAR) metamaterials will also be discussed briefly in the context of technologies of interest. Finally future directions for metamaterials of interest will also be touched upon.
10:40 Invited talk : Phase Progressions in Layered Metamaterials and their Effects on Refractive Index
Amir Zaghloul, Gregory Talalai, Steven Weiss, Theo Anthony
Army Research Lab (USA) A description of the mechanism of negative refraction is presented based solely on phase analysis and measurements for layered metamaterials.
11:00 Invited talk : Low profile antennas realized with metamaterials
Steven Weiss, Gregory Mitchell
Army Research Lab (USA) As a practical realization of a device created with metamaterials, we present measured data for a low profile, broadband antenna in the UHF/VHF range.
11:20 Invited talk : Metamaterial-based microrectenna arrays for infrared rectification
Richard Osgood (1),Kenneth Diest (2),Jimmy Xu (3),Ryan O'Hayre (4),Prabhuram Joghee (4),Minyi Kang (5),Ki-Bum Kim (5),Gustavo Fernandes (3),Stephen Giardini (1),Lalitha Parameswaran (2),Mordechai Rothschild (2),Steven Kooi (6)
(1)US Army NSRDEC (USA) , (2)MIT Lincoln Laboratory (USA) , (3)Brown University (USA) , (4)Colorado School of Mines (USA) , (5)Seoul National University (Korea) , (6)MIT Institute for Soldier Nanotechnologies (USA) Stripe-teeth metamaterial microantenna arrays, coupled to vertical Metal-Insulator-Metal (MIM) diodes, were designed, fabricated, and characterized with FTIR microscopy and current-voltage (I-V) measurements, the former agreed well with FDTD models and the latter showed that the Al2O3-based diodes have very large barrier heights and breakdown voltages. These microrectenna arrays were illuminated by infrared and visible laser beams, and their direct current was characterized as a function of bias voltage and compared to quantum rectification models.
11:40 Invited talk : Metamaterials and plasmonics for enhanced optical detectors
Air Force Research Lab (USA) New challenges arise in infrared detectors as pixel counts increase and the information is more widely used. Compressive sensing may allow for the acquisition of data with higher information content. Our research develops a combined method to integrate plasmonic and microptical elements onto detector structures for improvements and to introduce compressive sensing methods. We will present the results of several design studies and experimental verification of the modeled device performance.
12:00 Invited talk : Opening Satellite Capacity to Consumers with Metamaterial Antennas
Kymeta Corporation (USA) A metamaterial antenna is being developed for satellite communication that is thin, light, and low cost. These antennas are built upon reconfigurable metamaterials and the principles of holography, and they produce a directed, steerable, powerful beam without mechanically moving parts and with lower power-consumption than the competing technologies. This paper briefly introduces this antenna, only made possible by the intentional engineering of metamaterials, that is poised to bring satellite data capacities to the mass market.
12:20 : Recycling radio waves with smart walls
Matthieu Dupre, N. Kaina, M. Fink, G. Lerosey
ESPCI ParisTech (France) We propose to use electronically reconfigurable ultrathin metasurfaces as smart walls to reflect more intelligently the waves in indoor environments. We experimentally prove at 2.47 GHz that it is possible to use these as spatial microwave modulators, using a simple energy feedback. In particular, we show that we can enhance the transmission between two antennas by orders of magnitude or locally conceal a volume from the penetration of waves in a typical office room.