Arslanagic, Samel

Campbell, D. S.

Ziolkowski, R. W.

Online Research Database In Technology

                       General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.  • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal   If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.     Downloaded from orbit.dtu.dk on: Dec 20, 2017Passive and active cylindrical and spherical coated nano-particle systems at IR andvisible wavelengths and their applicationsZiolkowski, R. W. ; Campbell, D. S.; Arslanagic, SamelPublication date:2012Document VersionPeer reviewed versionLink back to DTU OrbitCitation (APA):Ziolkowski, R. W., Campbell, D. S., & Arslanagic, S. (2012). Passive and active cylindrical and spherical coatednano-particle systems at IR and visible wavelengths and their applications. Abstract from 2012 IEEEInternational Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting,Chicago, Illinois, United States. Passive and Active Cylindrical and Spherical Coated Nano-Particle Systems at IR and Visible Wavelengths and Their Applications  Richard W. Ziolkowski*(1, 2), Sawyer D. Campbell (2), and Samel Arslanagić (3) (1) Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721, USA, ziolkowski@ece.arizona.edu (2) College of Optical Sciences, University of Arizona, Tucson, AZ 85721, USA, scampbell@optics.arizona.edu (3) Department of Electrical Engineering, Technical University of Denmark,    DK-2800 Kgs. Lyngby, Denmark, sar@elektro.dtu.dk  A variety of passive and active spherical coated nano-particle (CNP) systems have been studied as canonical source and scattering problems using analytical Mie-based solutions. Both plane wave and electric Hertzian dipole excitations of these CNPs have been investigated. A variety of dispersive passive and active materials have been included in these designs.  The more common plane wave source excitation problem solutions have been obtained and used, for instance, to design, highly subwavelength nano-particle lasers (J. A. Gordon and R. W. Ziolkowski, Opt. Exp., 15, 2622-2653, 2007). Both silver and gold coatings and canonical and three-level atom gain models were considered. The power density vector fields and the resulting vortices that are associated with the active CNP systems have been studied to explain the gain levels needed to achieve their very large scattering responses (S. D. Campbell and R. W. Ziolkowski, to appear in Opt. Commun., 2012). The complexity of the gain materials considered for the active CNPs has been explored with recent studies involving quantum dots for the gain mechanisms (S. D. Campbell and R. W. Ziolkowski, submitted to Opt. Lett., 2011).  The less common electric Hertzian dipole excitation problem solutions also have been obtained and used to design a variety of highly subwavelength nano-amplifiers and nano-sensors (S. Arslanagić and R. W. Ziolkowski, J. Opt. A, 12, 2010). These canonical problems have also guided advanced numerical studies of more complex open, as well as closed, geometries (J. Geng, R. W. Ziolkowski, R. Jin and X. Liang, IEEE Photonics, 3, 1093-1110, 2011).  The impact of the metal choice has been determined (S. Arslanagic and R. W. Ziolkowski, Appl. Phys. A, 103, 795-798, 2011). The corresponding line source excited, passive and active cylindrical CNP problems have also been studied (S. Arslanagić, Y. Liu, R. Malureanu and R. W. Ziolkowski, Sensors, 11, 9109-9120, 2011). The possibility of tailoring the directive properties of these cylindrical and spherical nano-amplifiers has been explored recently (S. Arslanagić and R. W. Ziolkowski, Proc. META12, Paris France, 2012).  Our presentation will review these canonical problems, their solutions and their applications.  

Passive and active cylindrical and spherical coated nano-particle systems at IR and visible wavelengths and their applications

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Passive and active cylindrical and spherical coated nano-particle systems at IR and visible wavelengths and their applications

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