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

TE-polarized design for metallic slit lenses: a way to deep-subwavelength focusing over a broad wavelength range

Not Accessible

Your library or personal account may give you access

Abstract

Slit arrays based on noble metals have been widely proposed as planar transverse-magnetic (TM)-lenses, illuminated by a linearly polarized light with the polarization perpendicular to slits and implementing the focusing capability beyond the diffraction limit. However, due to intrinsic plasmonic losses, these TM-lenses cannot work efficiently in the ultraviolet wavelengths. In this Letter, taking advantage of the unique transmission through metallic slits not involving plasmonic losses, a metallic slit array with transverse-electric (TE)-polarized design is proposed, showing for the first time, to the best of our knowledge, the realization of sub-diffraction-limit focusing for ultraviolet light. Additionally, in contrast to the situations of TM-lenses, a wider slit leads to a greater phase delay and much larger slits can be arranged to construct the TE-lenses, which is quite beneficial for practical fabrication. Furthermore, deep-subwavelength focusing can be achieved by utilizing the immersing technology.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Metal nanoslit lenses with polarization-selective design

Satoshi Ishii, Alexander V. Kildishev, Vladimir M. Shalaev, Kuo-Ping Chen, and Vladimir P. Drachev
Opt. Lett. 36(4) 451-453 (2011)

Focusing short-wavelength surface plasmons by a plasmonic mirror

Erdem Ogut, Cenk Yanik, Ismet Inonu Kaya, Cleva Ow-Yang, and Kursat Sendur
Opt. Lett. 43(9) 2208-2211 (2018)

Enhanced nonresonant light transmission through subwavelength slits in metal

Anders Pors, Khachatur V. Nerkararyan, Khachik Sahakyan, and Sergey I. Bozhevolnyi
Opt. Lett. 41(2) 242-245 (2016)

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

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 (5)

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

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

Metrics

Select as filters


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