The unusual optical transmission enhancement is observed during exploring the optical properties of the periodically
patterned metal films. We fabricate the nanohole array on gold film with the focused ion beam techniques. The
transmittance is higher than the ratio of the area occupied by the holes and the total etching area. The dependences of the
transmittance on the thickness of metal film and the radius of hole are obtained. Theoretical calculations show that
extraordinary optical transmission is due to coupling of surface plasmon modes on the same surface, as well as coupling
of modes on both sides of the metal film. The calculated data are in good agreement with the experimental results. After
the analysis of the phenomena, we predict that the periodically modulated metal film is useful in field of photoelectronic
detecting and imaging.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.