Regular and anomalous extraordinary pptical transmission at the THz-gap
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Fecha
2009-06-29
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Optical Society of America (OSA)
Resumen
In this paper Anomalous Extraordinary Transmission (ET) is reported for s-polarization of low loss doubly periodic subwavelength hole arrays patterned on polypropylene (PP) substrates by conventional contact photolithography at the so-called THz-gap (1-10 THz). The unexpected enhanced transmittance for s-polarization (i.e. without spoof plasmons) was previously numerically demonstrated in subwavelength slits arrays. However, subsequently no experimental work has been devoted to this unexpected Extraordinary Transmission neither in subwavelength slits nor in subwavelength holes. Here, numerical study and experimental results of the Anomalous ET and the symmetric and antisymmetric transmittance modes associated with the already well-known p-polarization ET are shown alongside a systematically analysis of the frequency peaks as a function of hole size for both incident polarizations.
Palabras clave
Extraordinary transmission
Far infrared or terahertz
Subwavelength structures
Surface plasmons
Surface waves
Far infrared or terahertz
Subwavelength structures
Surface plasmons
Surface waves
Descripción
Materias
Cita
Kuznetsov, Navarro-Cía, Kubarev, Gelfand, Beruete, Campillo, & Sorolla. (2009). Regular and anomalous extraordinary pptical transmission at the THz-gap. Optics Express, 17(14), 11730-11738. https://doi.org/10.1364/OE.17.011730