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

Abruptly autofocusing terahertz waves with meta-hologram

Not Accessible

Your library or personal account may give you access

Abstract

An abruptly autofocusing ring-Airy beam is demonstrated in the terahertz (THz) waveband with a meta-hologram. The designed meta-hologram is composed of gold C-shaped slot antennas, which can realize both phase and amplitude modulation of the incident THz wave. A THz holographic imaging system is utilized to measure the generated ring-Airy beam; an abrupt focus following a parabolic trajectory is subsequently observed. THz ring-Airy beams with different parameters are also generated and investigated. This method can be expanded to other wavebands, such as the visible band, for which the meta-hologram can replace traditional computer-generated holography to avoid undesirable multiple diffraction orders.

© 2016 Optical Society of America

Full Article  |  PDF Article
More Like This
Observation of abruptly autofocusing waves

Dimitrios G. Papazoglou, Nikolaos K. Efremidis, Demetrios N. Christodoulides, and Stelios Tzortzakis
Opt. Lett. 36(10) 1842-1844 (2011)

Enhanced terahertz wave emission from air-plasma tailored by abruptly autofocusing laser beams

Kang Liu, Anastasios D. Koulouklidis, Dimitrios G. Papazoglou, Stelios Tzortzakis, and Xi-Cheng Zhang
Optica 3(6) 605-608 (2016)

Nonparaxial abruptly autofocusing beams

Raluca-Sorina Penciu, Konstantinos G. Makris, and Nikolaos K. Efremidis
Opt. Lett. 41(5) 1042-1045 (2016)

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 (2)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved