Terahertz transmission properties of quasiperiodic and aperiodic aperture arrays
JOSA B, Vol. 24, Issue 9, pp. 2545-2555 (2007)
http://dx.doi.org/10.1364/JOSAB.24.002545
Enhanced HTML 
Acrobat PDF (1081 KB)
Abstract
Recent demonstrations have shown that the transmission through a subwavelength aperture in metal film placed in a periodic lattice or an aperiodic structure is significantly increased relative to a bare aperture. Using terahertz time-domain spectroscopy, we analyze the enhanced transmission properties of aperiodic and corresponding random 2D aperture arrays perforated in metallic films, which include quasicrystals and quasicrystal approximates. We demonstrate that the transmission enhancement phenomenon occurs for aperture arrays having discrete Fourier components in the 2D geometrical structure factor. We further show that the phenomenon is valid for a larger class of 2D aperture array designs that can be tailored to exhibit desired resonances and hence is more general. The inherent relationship between various features observed in the measured time-domain electric field, calculated transmission spectra, and the real and reciprocal space representation of the aperture array is discussed in detail. The results are interpreted in terms of Fano-type interference mechanism. The importance of antiresonance features observed in the transmission spectra is also discussed.
© 2007 Optical Society of America
OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.3090) Physical optics : Infrared, far
(320.7160) Ultrafast optics : Ultrafast technology
ToC Category:
THz Domain
History
Original Manuscript: May 22, 2007
Revised Manuscript: July 13, 2007
Manuscript Accepted: July 20, 2007
Published: August 31, 2007
Citation
Amit Agrawal, Tatsunosuke Matsui, Z. Valy Vardeny, and Ajay Nahata, "Terahertz transmission properties of quasiperiodic and aperiodic aperture arrays," J. Opt. Soc. Am. B 24, 2545-2555 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-9-2545
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
Log in to access OSA Member Subscription
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
Log in to access OSA Member Subscription
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
Log in to access OSA Member Subscription
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
Log in to access OSA Member Subscription
Related Journal Articles 
- Two-color facility based on a broadly tunable infrared free-electron laser and a subpicosecond-synchronized 10-fs-Ti:sapphire laser (OL)
- Intense terahertz pulses by four-wave rectification in air (OL)
- Cross-polarized angular emission patterns from lens-coupled terahertz antennas (JOSAB)
- Electric field vector characterization of terahertz surface plasmons (OE)
- Coupling terahertz radiation onto a metal wire using a subwavelength coaxial aperture (OE)
Related Conference Papers
- Quasi-CW THz-imaging based on a high-efficiency tunable photonic transmitter
- Control of THz transmission through two-dimensional metallic photonic crystals
- Generation of THz radiation by excitation of InAs with femtosecond free-electron laser
- Air-Core Microstructure Fiber for Terahertz Radiation Waveguiding
- Characterization of Terahertz Surface Plasmons on Structured Metal Surfaces
« Previous Article | Next Article »
OSA is a member of 