Complementary Plasmonic Arrays for Extraordinary Transmission and Modulation of Terahertz Wave

An extraordinary optical transmission effect in a complementary metallic disk and hole array has been experimentally and numerically investigated in the terahertz (THz) regime, which shows a high transmission peak despite having zero effective aperture in the direction of light propagation. The results confirm that this effect is contributed not only by the surface plasmon excited on metallic disk and hole but also the resonance in the dielectric rod between them. Moreover, an optically pumped THz wave modulation with 40% amplitude modulation depth has been demonstrated in this device using a 532-nm laser with only 150 mW/mm2 power density. This novel plasmonic structure with high Q transmission peak shows great promising applications in the THz modulation, filtering, and sensing.

[1]  John F. O'Hara,et al.  A review of terahertz plasmonics in subwavelength holes on conducting films , 2013, IEEE Journal of Selected Topics in Quantum Electronics.

[2]  S. Maier.  Plasmonics: Fundamentals and Applications , 2007 .

[3]  Yun-Shik Lee,et al.  Principles of Terahertz Science and Technology , 2008 .

[4]  P. Ajayan,et al.  High-contrast terahertz wave modulation by gated graphene enhanced by extraordinary transmission through ring apertures. , 2014, Nano letters.

[5]  Stefan Enoch,et al.  Role of shape and localized resonances in extraordinary transmission through periodic arrays of subwavelength holes: Experiment and theory , 2005 .

[6]  Yanxia Cui,et al.  Multimode transmission in complementary plasmonic structures at terahertz frequencies , 2010 .

[7]  Jian Wang,et al.  Role of surface plasmon resonant modes in anomalous terahertz transmission through double-layer metal loop arrays. , 2014, Optics letters.

[8]  Masanobu Iwanaga.  Electromagnetic eigenmodes in a stacked complementary plasmonic crystal slab , 2010 .

[9]  Abul K. Azad,et al.  Experimental demonstration of frequency-agile terahertz metamaterials , 2008 .

[10]  Shengjiang Chang,et al.  Active terahertz plasmonic crystal waveguide based on double-structured Schottky grating arrays , 2014 .

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

[12]  Masanobu Iwanaga,et al.  Subwavelength electromagnetic dynamics in stacked complementary plasmonic crystal slabs. , 2010, Optics express.

[13]  N. Kanda,et al.  Terahertz wave polarization rotation with double layered metal grating of complimentary chiral patterns. , 2007, Optics express.

[14]  Sai Chen,et al.  State conversion based on terahertz plasmonics with vanadium dioxide coating controlled by optical pumping. , 2013, Optics letters.

[15]  Weili Zhang,et al.  Terahertz transmission properties of thin, subwavelength metallic hole arrays. , 2004, Optics letters.

[16]  Bo Liu,et al.  Magnetically tunable terahertz magnetoplasmons in ferrofluid-filled photonic crystals , 2013 .

[17]  D G Cooke,et al.  Optical modulation of terahertz pulses in a parallel plate waveguide. , 2008, Optics express.

[18]  Hong Lu,et al.  Electronic control of extraordinary terahertz transmission through subwavelength metal hole arrays. , 2008, Optics express.

[19]  Fei Fan,et al.  Terahertz Refractive Index Sensing Based on Photonic Column Array , 2015, IEEE Photonics Technology Letters.

[20]  Sai Chen,et al.  Tunable nonreciprocal terahertz transmission and enhancement based on metal/magneto-optic plasmonic lens. , 2013, Optics express.

[21]  T. Ebbesen,et al.  Light in tiny holes , 2007, Nature.

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

[23]  Qianfan Xu,et al.  High-contrast terahertz modulator based on extraordinary transmission through a ring aperture. , 2011, Optics express.

[24]  S Hayashi,et al.  Terahertz surface-wave resonant sensor with a metal hole array. , 2006, Optics letters.