TITLE

Optical nonlinearity enhancement of graded metallic films

AUTHOR(S)
Huang, J.P.; Yu, K.W.
PUB. DATE
July 2004
SOURCE
Applied Physics Letters;7/5/2004, Vol. 85 Issue 1, p94
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The effective linear and third-order nonlinear susceptibility of graded metallic films with weak nonlinearity have been investigated. Due to the simple geometry, we were able to derive exactly the local field inside the graded structures having a Drude dielectric gradation profile. We calculated the effective linear dielectric constant and third-order nonlinear susceptibility. We investigated the surface plasmon resonant effect on the optical absorption, the optical nonlinearity enhancement, and the figure of merit of graded metallic films. It is found that the presence of gradation in metallic films yields a broad resonant plasmon band in the optical region, resulting in a large enhancement of the optical nonlinearity, and hence a large figure of merit. We suggest experiments be done to check our theoretical predictions, because graded metallic films can be fabricated more easily than graded particles.
ACCESSION #
13605580

 

Related Articles

  • Enhanced Bio-molecular Sensing Capability of LSPR, SPR-ATR Coupled Technique. Singh, N. Kamal; Alqudami, Abdullah; Annapoorni, S.; Sharma, Vineet; Muralidhar, K. // AIP Conference Proceedings;6/29/2009, Vol. 1147 Issue 1, p331 

    This paper gives a comparative study of two of the SPR techniques i.e. Localised surface plasmon resonance (LSPR) and Surface plasmon resonance-Attenuated total reflection (SPR-ATR) technique and coupling of the two techniques for bio-molecular sensing applications. Silver nanoparticles prepared...

  • Sol-gel synthesis and characterization of Ag nanoparticles in Zr02 thin films. Yokoyama, Eisuke; Sakata, Hironobu; Wakaki, Moriaki // Journal of Materials Research;Aug2009, Vol. 24 Issue 8, p11 

    ZrO2 thin films containing silver nanoparticles were prepared using the sol-gel method with Ag to Zr molar ratios [Ag]/[Zr] = 0.11, 0.25, 0.43, 0.67, 1.00, 1.50, and 2.33. After dip coating on glass substrate, coated films were annealed at 200 and 300 °C in air. X-ray diffraction peaks...

  • The electrostatic coupling of longitudinal optical phonon and plasmon in wurtzite InN thin films. Chang, Y.-M.; Liou, S. C.; Chen, C. H.; Lee, H.-M.; Gwo, S. // Applied Physics Letters;1/25/2010, Vol. 96 Issue 4, p041908 

    We utilize coherent longitudinal optical phonon as an optical nanoprobe to investigate the plasmonic behavior of wurtzite c-plane InN thin films. The transition from the three-dimensional electron gas in InN bulk toward the two-dimensional electron gas in InN thin film is revealed via measuring...

  • Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers. Steinberger, B.; Hohenau, A.; Ditlbacher, H.; Aussenegg, F. R.; Leitner, A.; Krenn, J. R. // Applied Physics Letters;8/20/2007, Vol. 91 Issue 8, p081111 

    Dielectric thin film stripes on a metal surface can be applied as surface plasmon (SP) waveguides. Here, the authors demonstrate experimentally that such structures can be used to build SP waveguide bends and couplers. On one hand, they show that SP transmission through a waveguide bend can be...

  • Preparation and plasmonic properties of polymer-based composites containing Ag—Au alloy nanoparticles produced by vapor phase co-deposition. Beyene, H. T.; Chakravadhanula, V. S. K.; Hanisch, C.; Elbahri, M.; Strunskus, T.; Zaporojtchenko, V.; Kienle, L.; Faupel, F. // Journal of Materials Science;Nov2010, Vol. 45 Issue 21, p5865 

    Nanocomposite (NC) thin films with noble metal nanoparticles (NPs) embedded in a dielectric material show very attractive plasmonic properties due to dielectric and quantum confinement effects. For single component NPs, the plasmon resonance frequency can only be tuned in a narrow range. Much...

  • Surface plasmon resonance in nanostructured metal films under the Kretschmann configuration. Leong, Hai-Sheng; Guo, Junpeng; Lindquist, Robert G.; Liu, Qing H. // Journal of Applied Physics;Dec2009, Vol. 106 Issue 12, p124314-1 

    We systematically investigated the surface plasmon resonance in one-dimensional (1D) subwavelength nanostructured metal films under the Kretschmann configuration. We calculated the reflectance, transmittance, and absorption for varying the dielectric fill factor, the period of the 1D...

  • Surface plasmon delocalization by short-range correlations in percolating metal systems. Genov, D.A.; Seal, K.; Sarychev, A.K.; Noh, H.; Shalaev, V.M.; Ying, Z.C.; Zhang, X.; Cao, H. // Applied Physics B: Lasers & Optics;Jul2006, Vol. 84 Issue 1/2, p205 

    Theoretical and experimental studies of the electromagnetic response of semicontinuous metal films are presented. A scaling theory is developed by solving the surface plasmon eigenproblem. The short-range correlations in the governing Kirchhoff Hamiltonian result in delocalization of the surface...

  • Morphology and surface-plasmon resonance of silver nanoparticles sandwiched between Si3N4 and BN layers. Toudert, J.; Camelio, S.; Babonneau, D.; Denanot, M.-F.; Girardeau, T.; Espiños, J. P.; Yubero, F.; Gonzalez-Elipe, A. R. // Journal of Applied Physics;12/1/2005, Vol. 98 Issue 11, p114316 

    Nanocermet trilayered thin films consisting of silver nanoclusters sandwiched between two dielectric layers (the buffer and the cap) have been synthesized by ion-beam sputtering with an alternate deposition of the metal and the dielectric species. The influence of the amount of silver, the...

  • Carrier concentration dependence of optical Kerr nonlinearity in indium tin oxide films. Elim, H. I.; Ji, W.; Zhu, F. // Applied Physics B: Lasers & Optics;Mar2006, Vol. 82 Issue 3, p439 

    Optical Kerr nonlinearity (n2) in n-type indium tin oxide (ITO) films coated on glass substrates has been measured using Z-scans with 200-fs laser pulses at wavelengths ranging from 720 to 780 nm. The magnitudes of the measured nonlinearity in the ITO films were found to be dependent on the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics