Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Localized field enhancements in two-dimensional V-groove metal arrays

Not Accessible

Your library or personal account may give you access

Abstract

We investigate field enhancements in two-dimensional 800nm periodic arrays of (108121nm deep) V-grooves (opening angles 38°75°) fabricated using focused ion beam milling in a 190nm thick gold film on top of a fused silica substrate. Simulated and experimental reflection spectra, high-resolution two-photon luminescence (TPL) images, and microscopy of surface-enhanced Raman scattering (SERS) obtained from the V-groove metal arrays are compared and reveal good correspondence in the spectral dependences of reflection and local TPL as well as SERS measured at the groove bottom. We relate the obtained field intensity enhancements, reaching 85 with nanofocusing and resonant interference of counterpropagating plasmons by the periodic closed tapered groove gaps. The achieved reflection spectra and enhancements depend on the geometry of the V-groove arrays and can actually be tuned in the wavelength range from visible to infrared, making this configuration promising for a wide range of practical applications, e.g., within surface-enhanced spectroscopies.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Polarization-resolved two-photon luminescence microscopy of V-groove arrays

Jonas Beermann, Sergey M. Novikov, Tobias Holmgaard, René L. Eriksen, Ole Albrektsen, Kjeld Pedersen, and Sergey I. Bozhevolnyi
Opt. Express 20(1) 654-662 (2012)

Characterization of localized field enhancements in laser fabricated gold needle nanostructures

Sergey M. Novikov, Andrey B. Evlyukhin, Arseniy I. Kuznetsov, Jonas Beermann, Boris N. Chichkov, and Sergey I. Bozhevolnyi
J. Opt. Soc. Am. B 29(1) 185-190 (2012)

Nonlinear microscopy of localized field enhancements in fractal shaped periodic metal nanostructures

Jonas Beermann, Andrey Evlyukhin, Alexandra Boltasseva, and Sergey I. Bozhevolnyi
J. Opt. Soc. Am. B 25(10) 1585-1592 (2008)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved