Terahertz Dipole Nanoantenna Arrays: Resonance Characteristics.

Plasmonics 2013 Mar 24;8(1):133-138. Epub 2012 Aug 24.

Fondazione Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genoa, Italy.

Resonant dipole nanoantennas promise to considerably improve the capabilities of terahertz spectroscopy, offering the possibility of increasing its sensitivity through local field enhancement, while in principle allowing unprecedented spatial resolutions, well below the diffraction limit. Here, we investigate the resonance properties of ordered arrays of terahertz dipole nanoantennas, both experimentally and through numerical simulations. We demonstrate the tunability of this type of structures, in a range (∼1-2 THz) that is particularly interesting and accessible by means of standard zinc telluride sources. We additionally study the near-field resonance properties of the arrays, finding that the resonance shift observed between near-field and far-field spectra is predominantly ascribable to ohmic damping.

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11468-012-9439-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3597338PMC
March 2013
46 Reads
3 Citations
2.240 Impact Factor

Publication Analysis

Top Keywords

dipole nanoantennas
8
resonance properties
8
terahertz dipole
8
interesting accessible
4
accessible standard
4
allowing unprecedented
4
unprecedented spatial
4
spatial resolutions
4
∼1-2 thz interesting
4
principle allowing
4
standard zinc
4
telluride sources
4
local field
4
sources additionally
4
field enhancement
4
zinc telluride
4
range ∼1-2 thz
4
enhancement principle
4
sensitivity local
4
structures range
4

References

(Supplied by CrossRef)

P Bharadwaj et al.
Adv Opt Photon 2009

L Novotny et al.
Nature Photon 2011

S Kim et al.
Nature 2008

RM Bakker et al.
New J Phys 2008

P Anger et al.
Phys Rev Lett 2006

K Kneipp et al.
Phys Rev Lett 1997

G Das et al.
Biosens Bioelectron 2009

F Neubrech et al.
Phys Rev Lett 2008

R Adato et al.
Proc Natl Acad Sci 2009

MA Seo et al.
Nature Photon 2009

HR Park et al.
Appl Phys Lett 2010

Similar Publications