Regular and anomalous extraordinary optical transmission at the THz-gap.

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.

[1]  Michael Treacy,et al.  Dynamical diffraction in metallic optical gratings , 1999 .

[2]  A. V. Gelfand,et al.  Polypropylene-substrate-based SRR- and CSRR- metasurfaces for submillimeter waves. , 2008, Optics express.

[3]  F. García-Vidal,et al.  Transmission Resonances on Metallic Gratings with Very Narrow Slits , 1999, cond-mat/9904365.

[4]  Luciano Iess,et al.  Spacecraft Doppler tracking: Noise budget and accuracy achievable in precision radio science observations , 2005 .

[5]  R. Ulrich.  Far-infrared properties of metallic mesh and its complementary structure , 1967 .

[6]  R A Linke,et al.  Beaming Light from a Subwavelength Aperture , 2002, Science.

[7]  J. E. Rodriguez-Seco,et al.  Enhanced Gain by Double-Periodic Stacked Subwavelength Hole Array , 2007, IEEE Microwave and Wireless Components Letters.

[8]  Chao-Chun Chen,et al.  Transmission of Microwave Through Perforated Flat Plates of Finite Thickness , 1973 .

[9]  J. Pendry,et al.  Theory of extraordinary optical transmission through subwavelength hole arrays. , 2000, Physical review letters.

[10]  J. Pendry,et al.  Mimicking Surface Plasmons with Structured Surfaces , 2004, Science.

[11]  M. J. Lockyear,et al.  Ultrafast optical switching of the THz transmission through metallic subwavelength hole arrays , 2007 .

[12]  J. Pendry,et al.  Evanescently coupled resonance in surface plasmon enhanced transmission , 2001 .

[13]  Weili Zhang,et al.  Effect of dielectric properties of metals on terahertz transmission subwavelength hole arrays. , 2006, Optics letters.

[14]  H. Bethe.  Theory of Diffraction by Small Holes , 1944 .

[15]  Thomas W. Ebbesen,et al.  Fornel, Frédérique de , 2001 .

[16]  David R. Jackson,et al.  Beaming of light at broadside through a subwavelength hole: Leaky wave model and open stopband effect , 2005 .

[17]  Eric Michielssen,et al.  Enhanced transmission through metallic plates perforated by arrays of subwavelength holes and sandwiched between dielectric slabs , 2005 .

[18]  M. Isaacson,et al.  Development of a 500 Å spatial resolution light microscope: I. light is efficiently transmitted through λ/16 diameter apertures , 1984 .

[19]  Francisco Falcone,et al.  Extraordinary transmission and left-handed propagation in miniaturized stacks of doubly periodic subwavelength hole arrays. , 2007, Optics express.

[20]  H. Kurz,et al.  Enhanced transmission of THz radiation through subwavelength holes , 2003 .

[21]  H. Lezec,et al.  Extraordinary optical transmission through sub-wavelength hole arrays , 1998, Nature.

[22]  Esteban Moreno,et al.  Extraordinary optical transmission without plasmons: the s-polarization case , 2006 .

[23]  E. Synge.  XXXVIII. A suggested method for extending microscopic resolution into the ultra-microscopic region , 1928 .

[24]  Franciscus B. Segerink,et al.  Influence of hole size on the extraordinary transmission through subwavelength hole arrays , 2004 .

[25]  J Bravo-Abad,et al.  Enhanced millimeter-wave transmission through subwavelength hole arrays. , 2004, Optics letters.

[26]  Michael Sarrazin,et al.  Role of Wood anomalies in optical properties of thin metallic films with a bidimensional array of subwavelength holes , 2003, physics/0311013.

[27]  Lord Rayleigh,et al.  On the Dynamical Theory of Gratings , 1907 .