Research output: Contribution to journal › Article › peer-review
Revealing the underlying mechanisms behind TE extraordinary THz transmission. / Freer, Suzanna; Camacho, Miguel; Kuznetsov, Sergei A. et al.
In: Photonics Research, Vol. 8, No. 4, 01.04.2020, p. 430-439.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Revealing the underlying mechanisms behind TE extraordinary THz transmission
AU - Freer, Suzanna
AU - Camacho, Miguel
AU - Kuznetsov, Sergei A.
AU - Boix, Rafael R.
AU - Beruete, Miguel
AU - Navarro-Cía, Miguel
N1 - Publisher Copyright: © 2020 Chinese Laser Press. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Transmission through seemingly opaque surfaces, so-called extraordinary transmission, provides an exciting platform for strong light–matter interaction, spectroscopy, optical trapping, and color filtering. Much of the effort has been devoted to understanding and exploiting TM extraordinary transmission, while TE anomalous extraordinary transmission has been largely omitted in the literature. This is regrettable from a practical point of view since the stronger dependence of the TE anomalous extraordinary transmission on the array’s substrate provides additional design parameters for exploitation. To provide high-performance and cost-effective applications based on TE anomalous extraordinary transmission, a complete physical insight about the underlying mechanisms of the phenomenon must be first laid down. To this end, resorting to a combined methodology including quasi-optical terahertz (THz) time-domain measurements, full-wave simulations, and method of moments analysis, subwavelength slit arrays under s-polarized illumination are studied here, filling the void in the current literature. We believe this work unequivocally reveals the leaky-wave role of the grounded-dielectric slab mode mediating in TE anomalous extraordinary transmission and provides the necessary framework to design practical high-performance THz components and systems.
AB - Transmission through seemingly opaque surfaces, so-called extraordinary transmission, provides an exciting platform for strong light–matter interaction, spectroscopy, optical trapping, and color filtering. Much of the effort has been devoted to understanding and exploiting TM extraordinary transmission, while TE anomalous extraordinary transmission has been largely omitted in the literature. This is regrettable from a practical point of view since the stronger dependence of the TE anomalous extraordinary transmission on the array’s substrate provides additional design parameters for exploitation. To provide high-performance and cost-effective applications based on TE anomalous extraordinary transmission, a complete physical insight about the underlying mechanisms of the phenomenon must be first laid down. To this end, resorting to a combined methodology including quasi-optical terahertz (THz) time-domain measurements, full-wave simulations, and method of moments analysis, subwavelength slit arrays under s-polarized illumination are studied here, filling the void in the current literature. We believe this work unequivocally reveals the leaky-wave role of the grounded-dielectric slab mode mediating in TE anomalous extraordinary transmission and provides the necessary framework to design practical high-performance THz components and systems.
KW - BULLS-EYE ANTENNA
KW - OPTICAL-TRANSMISSION
KW - ENHANCED TRANSMISSION
KW - MILLIMETER-WAVE
KW - ARRAYS
KW - LIGHT
KW - GRATINGS
KW - PLASMONS
KW - CIRCUIT
KW - FIELD
UR - http://www.scopus.com/inward/record.url?scp=85083739330&partnerID=8YFLogxK
U2 - 10.1364/PRJ.8.000430
DO - 10.1364/PRJ.8.000430
M3 - Article
AN - SCOPUS:85083739330
VL - 8
SP - 430
EP - 439
JO - Photonics Research
JF - Photonics Research
SN - 2327-9125
IS - 4
ER -
ID: 24092065