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

Focusing subwavelength light by using nanoholes in a transparent thin film

Not Accessible

Your library or personal account may give you access

Abstract

A circle of planar nanoholes in a dielectric thin film can focus light into a sub-half-wavelength spot. The nanostructure with higher rotational symmetry shows better focusing properties. From finite-difference time-domain calculations, we verified such a focusing spot coming from the constructive interference of diffraction beams near the nanoholes. For a 1μm size lens with eight 200nm diameter holes, we achieved an optical spot smaller than 250nm measured at 650nm wavelength. This nanostructure provides a simple way to massively fabricate a planar lens array with a scale down to the submicrometer level.

© 2009 Optical Society of America

Full Article  |  PDF Article
More Like This
Through nanohole formation in thin metallic film by single nanosecond laser pulses using optical dielectric apertureless probe

Y. N. Kulchin, O. B. Vitrik, A. A. Kuchmizhak, A. V. Nepomnyashchii, A. G. Savchuk, A. A. Ionin, S. I. Kudryashov, and S. V. Makarov
Opt. Lett. 38(9) 1452-1454 (2013)

Far-field control of focusing plasmonic waves through disordered nanoholes

Eunsung Seo, Joonmo Ahn, Wonjun Choi, Hakjoon Lee, Young Min Jhon, Sanghoon Lee, and Wonshik Choi
Opt. Lett. 39(20) 5838-5841 (2014)

Surface plasmon generation and light transmission by isolated nanoholes and arrays of nanoholes in thin metal films

Shih-Hui Chang, Stephen K. Gray, and George C. Schatz
Opt. Express 13(8) 3150-3165 (2005)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

Supplementary Material (1)

Media 1: MOV (415 KB)     

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 (4)

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved