TITLE

Resonance transmission or absorption in deep gratings explained by magnetic polaritons

AUTHOR(S)
Wang, L. P.; Zhang, Z. M.
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/14/2009, Vol. 95 Issue 11, p111904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Resonance transmission or absorption has been observed in metallic deep gratings and previously characterized as coupled surface plasmon polaritons or Fabry–Pérot-like resonances. This letter provides a quantitative explanation of this phenomenon by means of localized magnetic polaritons. Rigorous coupled-wave analysis is used to predict the spectral transmittance and absorptance of subwavelength gratings. The resonance condition is compared with that predicted by the LC circuit model. Some geometric effects that cannot be explained by previous models can be well understood in terms of magnetic polaritons. The insight gained from this study may facilitate future design and applications of subwavelength periodic structures.
ACCESSION #
44292320

 

Related Articles

  • How many surface plasmons are locally excited on the ridges of metallic lamellar gratings? Wang, B.; Lalanne, P. // Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p051115 

    In contrast to earlier classical studies that analyze the surface Bloch modes supported by metallic gratings composed of slits as collective surface-plasmon-polaritons (SPPs) resonances (or poles) of the entire periodic problem, we study the normalized rate of SPPs that are locally launched on...

  • Optical resonances in a composite asymmetric plasmonic nanostructure. Wan-xia Huang; Qian-jin Wang; Xiao-gang Yin; Cheng-ping Huang; Huang Huang; Yu-min Wang; Yong-yuan Zhu // Journal of Applied Physics;Jun2011, Vol. 109 Issue 11, p114310 

    The optical properties of a composite metamaterial, composed of asymmetric split-ring resonators (SRR) inserted into the periodic circular holes, have been investigated both experimentally and theoretically. Transmission peaks and dip associated with the localized plasmon excitations have been...

  • Simultaneous excitation of cavity resonance and surface plasmon resonance in Ag/Al2O3/Ag layer structure. Zhao, R.; Zhai, T.; Wang, Z.; Wang, Y.; Liu, D. // Applied Physics B: Lasers & Optics;Sep2008, Vol. 92 Issue 4, p585 

    Simultaneous excitation of cavity resonance (CR) and surface plasmon resonance (SPR) was observed in the angular spectrum by substituting Ag/Al2O3/Ag layers for the metal film in a Kretschmann structure. Two reflective valleys, elicited respectively by CR and SPR, appeared at different positions...

  • Surface plasmon polaritons generated by optical vortex beams. Tan, P. S.; Yuan, X.-C.; Lin, J.; Wang, Q.; Mei, T.; Burge, R. E.; Mu, G. G. // Applied Physics Letters;3/17/2008, Vol. 92 Issue 11, p111108 

    We demonstrate that surface plasmon polaritons can be generated by optical vortex beams at normal incidence focused on a metal surface. The surface plasmon resonant angle can be modulated by the radius of the optical vortex beam in the case of different metal/dielectric interface configurations....

  • Surface plasmons visualized as rainbow jets. Overton, Gail // Laser Focus World;Jul2005, Vol. 41 Issue 7, p25 

    Focuses on the direct measurement and visualization of surface plasmon (SP) achieved by researchers at the Chemistry Division and Center for Nanoscale Materials at Argonne National Laboratory in Argonne, Illinois, to facilitate study of the propagation length of surface plasmons and their...

  • Ultrafast active plasmonics. MacDonald, Kevin F.; Sámson, Zsolt L.; Stockman, Mark I.; Zheludev, Nikolay I. // Nature Photonics;Jan2009, Vol. 3 Issue 1, p55 

    Surface plasmon polaritons, propagating bound oscillations of electrons and light at a metal surface, have great potential as information carriers for next-generation, highly integrated nanophotonic devices. Since the term ‘active plasmonics’ was coined in 2004, a number of...

  • Subwavelength imaging in a superlens of plasmon nanospheres. Simovski, C.; Tretyakov, S.; Viitanen, A. // Technical Physics Letters;Mar2007, Vol. 33 Issue 3, p264 

    A structure comprising two lattices of silver or gold nanospheres is considered. It is shown that this structure can be used as a superlens capable of providing subwavelength imaging of a point source and a sub-wavelength spatial resolution of two sources at a distance within one wavelength.

  • Surface plasmon-enhanced emission from Ag-coated Ce doped Y3Al5O12 thin films phosphor capped with a dielectric layer of SiO2. Chao, Wen-Hsuan; Wu, Ren-Jye; Tsai, Chih-Song; Wu, Tai-Bor // Journal of Applied Physics;Jan2010, Vol. 107 Issue 1, p013101 

    The effect of a surface plasmon (SP) on the yellow emission of Ce doped Y3Al5O12 (YAG:Ce) phosphor thin films was studied. The coating of YAG:Ce thin films with silver nanoislands on a 3-nm-thick SiO2 spacer significantly enhanced their photoluminescence (PL). The PL enhancement is caused by the...

  • Surface enhanced infrared absorption by coupling phonon and plasmon resonance. Anderson, Mark S. // Applied Physics Letters;10/3/2005, Vol. 87 Issue 14, p144102 

    A gold and silicon carbide particle matrix is presented that concentrates light to its surface using a combination of phonon and plasmon resonance mechanisms. The enhanced infrared absorption spectrum of absorbed molecules is used to probe the coupled phonon and plasmon surface resonances....

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics