Abstract

We show both numerically and experimentally that intense, narrow, and low-divergence beams of light are produced at the apex of dielectric pyramid-shaped microtips. These beams exhibit a Bessel transverse profile but are narrower than the usual Bessel beam, allowing for a significant enhancement of the light intensity inside the beam. They are generated by axicon-like structures with submicrometric height imprinted in glass by combining optical lithography and chemical etching. The resulting beams are experimentally imaged using fluorescence microscopy, in remarkable agreement with numerical computations.

©2012 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Digital generation of shape-invariant Bessel-like beams

Igor A. Litvin, Thandeka Mhlanga, and Andrew Forbes
Opt. Express 23(6) 7312-7319 (2015)

Recording Bessel-like beam shapes generated by plasmonics lens

C. K. Chang, Y. Y. Yu, M. W. Lai, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee
Opt. Express 17(16) 13946-13952 (2009)

High-quality fiber microaxicons fabricated by a modified chemical etching method for laser focusing and generation of Bessel-like beams

A. Kuchmizhak, S. Gurbatov, A. Nepomniaschii, O. Vitrik, and Yu. Kulchin
Appl. Opt. 53(5) 937-943 (2014)

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

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

Equations (1)

You do not have subscription access to this journal. Equations 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