Abstract

The diffraction limit sets the smallest achievable linewidth at half the wavelength. With a subwavelength plasmonic lens allowing one to reduce the diffraction via an asymmetry and to generate and squeeze the wave functions, an incident light is focused by the aperture to a single line with its width smaller than the limited value in the intermediate zone. The focused fields are capable of propagating in free space. This light focusing process, besides being of academic interest, is expected to open up a wide range of application possibilities.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Beyond-limit light focusing in the intermediate zone

K. R. Chen, W. H. Chu, H. C. Fang, C. P. Liu, C. H. Huang, H. C. Chui, C. H. Chuang, Y. L. Lo, C. Y. Lin, H. H. Hwung, and Andy Y.-G. Fuh
Opt. Lett. 36(23) 4497-4499 (2011)

Interference of surface waves in a metallic nanoslit

Bora Ung and Yunlong Sheng
Opt. Express 15(3) 1182-1190 (2007)

Three-dimensional nanoscale Far-field Focusing of Radially Polarized Light by Scattering the SPPs with an Annular Groove

Maoguo Zhang, Jinglei Du, Haofei Shi, Shaoyun Yin, Liangping Xia, Baohua Jia, Min Gu, and Chunlei Du
Opt. Express 18(14) 14664-14670 (2010)

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Supplementary Material (2)

» Media 1: AVI (6024 KB)     
» Media 2: AVI (6506 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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription