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

Thickness optimization of metal films for the development of surface-plasmon-based sensors for nonabsorbing media

Not Accessible

Your library or personal account may give you access

Abstract

The surface-plasmon resonance (SPR) effect in metals is highly sensitive to fluctuations in the optical properties of the interface and has been frequently employed in the Kretschmann configuration for optical sensing. The operating conditions required for using the SPR effect for probing nonabsorbing media under maximum sensitivity are derived analytically under the Lorentzian approximation. It is found that the film thickness that maximizes sensitivity occurs when the radiation damping of the oscillation is half the intrinsic damping. Numerical results are presented for the spectral dependence of the optimum thickness as well as of the SPR parameters of gold, copper, silver, and aluminum films, useful for the design of optical sensors for both gaseous and aqueous environments.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
Particle swarm optimizer for the surface plasmon resonance effect on metal gratings

Felipe José Lucena de Araujo, Ernande Ferreira de Melo, and Eduardo Fontana
Appl. Opt. 62(23) 6120-6130 (2023)

Surface plasmon sensing with different metals in single and double layer configurations

Dmitry V. Nesterenko, Saif-ur-Rehman, and Zouheir Sekkat
Appl. Opt. 51(27) 6673-6682 (2012)

Sensitivity of optical sensors based on laser-excited surface-plasmon waves

Joel Villatoro and Augusto García-Valenzuela
Appl. Opt. 38(22) 4837-4844 (1999)

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 (7)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (74)

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