000095965 001__ 95965
000095965 005__ 20201027161503.0
000095965 0247_ $$2doi$$a10.1103/PHYSREVB.73.155404
000095965 0248_ $$2sideral$$a85613
000095965 037__ $$aART-2006-85613
000095965 041__ $$aeng
000095965 100__ $$aHohenau, Andreas
000095965 245__ $$aSpectroscopy and nonlinear microscopy of Au nanoparticle arrays: Experiment and theory
000095965 260__ $$c2006
000095965 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095965 5203_ $$aRegular arrays of rectangular gold nanoparticles on glass substrates are characterized by using linear extinction spectroscopy (in the wavelength range of 450-950 nm) and nonlinear scanning optical microscopy, in which two-photon photoluminescence (TPL) excited with a strongly focused laser beam (in the wavelength range of 720-800 nm) is detected. The dimensions of the nanoparticles (‚àº150vó150vó50 nm3) are chosen to realize the localized-surface-plasmon (LSP) resonance at the wavelength of ‚àº750 nm, which is clearly seen on the obtained extinction spectra as well as with the recorded TPL images. Extinction spectra are modeled using a finite-difference time-domain approach with the dielectric function of gold approximated by a Drude-Lorentz formula, showing rather good agreement between the experimental and theoretical spectra simulated for the nominal geometrical parameters of gold nanoparticles. The developed modeling tool is further used to evaluate the field intensity enhancement at the particles, which is then compared to the intensity enhancement estimated from the TPL images. We find good agreement between the intensity enhancement levels and indications that the LSP resonance wavelengths seen in the extinction spectra might differ from those deduced from the intensity enhancement spectra. The implications of the results obtained are discussed.
000095965 536__ $$9info:eu-repo/grantAgreement/EC/FP6/505699/EU/Enhancing light propagation for novel optical devices/SPP$$9info:eu-repo/grantAgreement/EC/FP6/507879/EU/Surface Plasmon Nanodevices : Towards sub-wavelength miniaturization of optical interconnects and photonic components/PLASMO-NANO-DEVICES
000095965 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000095965 590__ $$a3.107$$b2006
000095965 591__ $$aPHYSICS, CONDENSED MATTER$$b10 / 58 = 0.172$$c2006$$dQ1$$eT1
000095965 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000095965 700__ $$aKrenn, Joachim R.
000095965 700__ $$aBeermann, Jonas
000095965 700__ $$aBozhevolnyi, Sergey I.
000095965 700__ $$aRodrigo, Sergio G.
000095965 700__ $$aMartin-Moreno, Luis
000095965 700__ $$aGarcia-Vidal, Francisco
000095965 773__ $$g73, 15 (2006), 155404 [7 pp]$$pPhys. Rev. B, Condens. matter mater. phys.$$tPhysical Review B$$x1098-0121
000095965 8564_ $$s124408$$uhttps://zaguan.unizar.es/record/95965/files/texto_completo.pdf$$yVersión publicada
000095965 8564_ $$s605221$$uhttps://zaguan.unizar.es/record/95965/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095965 909CO $$ooai:zaguan.unizar.es:95965$$particulos$$pdriver
000095965 951__ $$a2020-10-27-15:03:44
000095965 980__ $$aARTICLE