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

Optical properties of discontinuous gold films: finite-size effects

Not Accessible

Your library or personal account may give you access

Abstract

The optical constants of discontinuous gold films consisting of both embedded and unembedded spherical particles in the size range 5–14 nm were determined from spectroellipsometric and spectrophotometric measurements. The optical response was modeled with the Yamaguchi anisotropic dielectric function. The energy and width dependence of the surface-plasmon resonance owing to the finite size of the gold particles was determined with a phenomenologically modified metal dielectric function. The expected blueshift and broadening of the resonance with decreasing particle size was observed. The magnitude of the shift suggests that lattice contraction, including its effect on both the free-electron response and the core response, plays an important role in determining the resonant energy. The width dependence on particle size was found to be well described by broadening parameters A=0.15 and A=0.22 for embedded and unembedded particles, respectively.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Linear optical properties of gold nanoshells

Richard D. Averitt, Sarah L. Westcott, and Naomi J. Halas
J. Opt. Soc. Am. B 16(10) 1824-1832 (1999)

Optical properties of discontinuous copper films

Ewa Dobierzewska-Mozrzymas and Piotr Biegański
Appl. Opt. 32(13) 2345-2350 (1993)

Application of effective medium theory with consideration of island shapes to interpret optical properties of discontinuous Pt films

P. Biegański, E. Dobierzewska-Mozrzymas, and L. Kępiński
Appl. Opt. 51(29) 6945-6951 (2012)

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 (8)

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 (6)

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