The subwavelength annular apertures (SAA) made on metallic layers by electron beam lithography with metal lift-off processes have been demonstrated. We have experimentally enhanced the Bessel beam distance through the SAA structure with large diameters.
© 2008 Optical Society of America
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
Login to access OSA Member Subscription