Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides

2003 ◽  
Vol 2 (4) ◽  
pp. 229-232 ◽  
Author(s):  
Stefan A. Maier ◽  
Pieter G. Kik ◽  
Harry A. Atwater ◽  
Sheffer Meltzer ◽  
Elad Harel ◽  
...  
2003 ◽  
Vol 797 ◽  
Author(s):  
Yongqiang Xue ◽  
Mark A. Ratner

ABSTRACTWe present a microscopic theory of electromagnetic energy transport in nanostructured media based on the Lagrangian formulation of semiclassical electrodynamics. We show the importance of the interplay between transverse and longitudinal local fields in determining the light-matter interaction in nanostructured media. We derive rigorously the coupled-dipole equation of the local fields and apply the theory to analyze energy transport in metal nanoparticle chain waveguide.


2002 ◽  
Author(s):  
Stefan A. Maier ◽  
Pieter G. Kik ◽  
Harry A. Atwater ◽  
Sheffer Meltzer ◽  
Aristides A. G. Requicha ◽  
...  

2002 ◽  
Vol 722 ◽  
Author(s):  
Stefan A. Maier ◽  
Pieter G. Kik ◽  
Mark L. Brongersma ◽  
Harry A. Atwater ◽  
Sheffer Meltzer ◽  
...  

AbstractWe study the influence of optical near-field interactions on the dipole surface plasmon resonance of Au nanoparticles in closely spaced particle arrays using finite-difference timedomain simulations. In particular, the resonance energies of the collective plasmon-polariton modes are determined for longitudinal and transverse polarization for different particle array lengths and inter-particle spacings of 50 nm Au spheres in air. The obtained results are set in context with recent publications suggesting the possibility to use ordered arrays of closely spaced noble metal nanoparticles as plasmon waveguides for electromagnetic energy below the diffraction limit of light.


2003 ◽  
Vol 777 ◽  
Author(s):  
Stefan A. Maier ◽  
Pieter G. Kik ◽  
Luke A. Sweatlock ◽  
Harry A. Atwater ◽  
J. J. Penninkhof ◽  
...  

AbstractWe investigate the optical properties of arrays of closely spaced metal nanoparticles in view of their potential to guide electromagnetic energy with a lateral mode confinement below the diffraction limit of light. Finite-difference time-domain simulations of short arrays of noble metal nanospheres show that electromagnetic pulses at optical frequencies can propagate along the arrays due to near-field interactions between plasmon-polariton modes of adjacent nanoparticles. Near-field microscopy enables the study of energy transport in these plasmon waveguides and shows experimental evidence for energy propagation over a distance of 0.5 νm for plasmon waveguides consisting of spheroidal silver particles fabricated using electron beam lithography.


2000 ◽  
Vol 62 (24) ◽  
pp. R16356-R16359 ◽  
Author(s):  
Mark L. Brongersma ◽  
John W. Hartman ◽  
Harry A. Atwater

2005 ◽  
Vol 23 (4) ◽  
pp. 1295-1310 ◽  
Author(s):  
H. Korth ◽  
B. J. Anderson ◽  
H. U. Frey ◽  
C. L. Waters

Abstract. We present a case study of a prolonged interval of strongly northward orientation of the interplanetary magnetic field on 16 July 2000, 16:00-19:00 UT to characterize the energy exchange between the magnetosphere and ionosphere for conditions associated with minimum solar wind-magnetosphere coupling. With reconnection occurring tailward of the cusp under northward IMF conditions, the reconnection dynamo should be separated from the viscous dynamo, presumably driven by the Kelvin-Helmholtz (KH) instability. Thus, these conditions are also ideal for evaluating the contribution of a viscous interaction to the coupling process. We derive the two-dimensional distribution of the Poynting vector radial component in the northern sunlit polar ionosphere from magnetic field observations by the constellation of Iridium satellites together with drift meter and magnetometer observations from the Defense Meteorological Satellite Program (DMSP) F13 and F15 satellites. The electromagnetic energy flux is then compared with the particle energy flux obtained from auroral images taken by the far-ultraviolet (FUV) instrument on the Imager for Magnetopause to Aurora Global Exploration (IMAGE) spacecraft. The electromagnetic energy input to the ionosphere of 51 GW calculated from the Iridium/DMSP observations is eight times larger than the 6 GW due to particle precipitation all poleward of 78° MLAT. This result indicates that the energy transport is significant, particularly as it is concentrated in a small region near the magnetic pole, even under conditions traditionally considered to be quiet and is dominated by the electromagnetic flux. We estimate the contributions of the high and mid-latitude dynamos to both the Birkeland currents and electric potentials finding that high-latitude reconnection accounts for 0.8 MA and 45kV while we attribute <0.2MA and ~5kV to an interaction at lower latitudes having the sense of a viscous interaction. Given that these conditions are ideal for the occurrence of the KH instability at the magnetopause and hence the viscous interaction, this result suggests that the viscous interaction is a small contributor to coupling solar wind energy to the magnetosphere-ionosphere system.


2002 ◽  
Vol 19 (1-2) ◽  
pp. 291-294 ◽  
Author(s):  
Stefan A Maier ◽  
Mark L Brongersma ◽  
Harry A Atwater

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