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

Diffraction-induced near-field optical images in mesoscale air–dielectric structures

Not Accessible

Your library or personal account may give you access

Abstract

Optical contrast on the surface of mesoscale air–dielectric structures was evaluated with collection-mode near-field scanning optical microscopy. When air holes (300 nm) were smaller than the incident wavelength (400 or 600 nm), the optical field was concentrated in the dielectric region. When air holes (1000 nm) were larger than the incident wavelength (400 or 600 nm), there was topographic edge enhancement. After confirmation with finite-difference time-domain simulation, we conclude that light diffracted off topographic edges is a major contributor to contrast in collection-mode near-field optical images.

© 2003 Optical Society of America

Full Article  |  PDF Article
More Like This
Subwavelength focusing in the near field in mesoscale air–dielectric structures

Pei-Kuen Wei, Hsieh-Li Chou, and Yi-Chun Chen
Opt. Lett. 29(5) 433-435 (2004)

Mesoscale surface plasmons: modelling and imaging using near-field scanning optical microscopy

Ari D. Mayevsky, Timothy J. Davis, Patrycja M. Ballard, Clare A. Henderson, and Alison M. Funston
Opt. Express 26(18) 23426-23435 (2018)

Local imaging of photonic structures: image contrast from impedance mismatch

A. L. Campillo, J. W. P. Hsu, and Garnett W. Bryant
Opt. Lett. 27(6) 415-417 (2002)

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 (6)

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

Select as filters


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