On the quest to invisibility and cloakingOne of the most exciting applications of metamaterials consists in the possibility of suppressing the overall scattering of an object by covering it with a suitably designed ‘cloak’. Our group has pioneered the use of plasmonic and mantle cloaks for drastic scattering suppression, envisioning applications for camouflaging, wireless communications, non-invasive sensing, energy and optical computing.Metamaterial devices and componentsOur group has proposed several exciting concepts to apply metamaterials and plasmonics for novel devices and components that can manipulate radio-frequencies, THz, optical and acoustic signals in unprecedented ways. Noticeable examples are our recent work on integrated nanophotonic switches, memories and polarizers, as well as on integrated nonreciprocal devices not requiring magnetic bias.
Jan. 5-9, 2014 - Snowbird, UT, USAInvited talk at the 44th Winter Colloquium on the Physics of Quantum ElectronicsFeb.1-6, 2014 - San Francisco, CA, USAInvited talk at SPIE Photonics WestApril 21-25, 2014 - San Francisco, CA, USAInvited talk at the MRS Spring Meeting
Optical nanoantennas and nanocircuitsOur group has introduced several innovative concepts to tailor emission, radiation and optical processing at the nanoscale.Graded metasurfaces and twisted metamaterialsWe have introduced the concept of nonperiodic metamaterials and metasurfaces with controlled variations along an axis of choice, providing new degrees of freedom for light manipulation at the nanoscale.Metamaterial modeling and homogenizationWe have introduced several theoretical concepts to improve the modeling and understanding of the complex wave interaction with metamaterials and metasurfaces.
Welcome to Andrea Alù’s research group webpageAndrea Alù is an Associate Professor, and the David & Doris Lybarger Endowed Faculty Fellow in Engineering,in the Department of Electrical and Computer Engineering at The University of Texas at Austin in Austin, TX, USA. He is currently affiliated with the Wireless Networking and Communications Group, an interdisciplinary center for research andeducation based in UT Austin with an emphasis on industrial relevance, and with the Applied Research Laboratories at UT Austin.His research interests span over a broad range of technical areas, including applied electromagnetics, nano-optics and nanophotonics, microwave, THz, infrared, optical and acoustic metamaterials and metasurfaces, plasmonics, nonlinearities and nonreciprocity, cloaking and scattering, acoustics, optical nanocircuits and nanoantennas.
December 9, 2013: Andrea Alù has been selected as an American Physical Society (APS) Outstanding Referee of the Physical Review and Physical Review Letters journals, as chosen by the journal editors.December 3, 2013: Two of our papers have been accepted and are currently in press in Science. Congratulations to Francesco, Romain, Caleb, and Dimitrios!November 26, 2013: Our paper F. Monticone, and A. Alù, “Metamaterial-Enhanced Nanophotonics,” has been published in Optics and Photonics News, Special Issue for Year in Optics, Vol. 24, No. 12, p. 35.November 25, 2013: Andrea Alù has been elevated to Fellowof the Insitute of Electrical and Electronics Engineers (IEEE) for “contributions to the theory and applications of electromagnetic metamaterials and plasmonic phenomena”.November 11, 2013: Our upcoming PRL paper on non-Foster cloaking and our recent PRX paper on cloaking bounds are covered by Time Magazine, BBC, NBC News, Gizmag and Physics World, among many others.