Ultrasmall optical logic gate based on graphene–SiO2 metamaterial

Abstract. We propose an ultrasmall channel based on graphene–SiO2 metamaterial, which is composed of alternating layers of graphene and SiO2 periodically. By tuning the permittivity of the graphene through the applied voltage, the basic logic gate-controllable channel made by the graphene–SiO2 metamaterial is able to control the light transmission, which can be used to work as optical logic gate with ultrasmall footprint and large extinction ratio, including the AND, OR, XOR, and XOR logic gates.

[1]  Andrea Alù,et al.  Dielectric sensing in ε-near-zero narrow waveguide channels , 2008 .

[2]  K. Tsukagoshi,et al.  Complementary-like graphene logic gates controlled by electrostatic doping. , 2011, Small.

[3]  Yadong Xu,et al.  Total reflection and transmission by epsilon-near-zero metamaterials with defects , 2011 .

[4]  Xiang Zhang,et al.  A graphene-based broadband optical modulator , 2011, Nature.

[5]  Hanan Dery,et al.  Experimental Demonstration of XOR Operation in Graphene Magnetologic Gates at Room Temperature , 2015 .

[6]  Reza Safian,et al.  Plasmonic cloaking for irregular inclusions using an epsilon-near-zero region composed of a graphene–silica stack , 2018 .

[7]  Nader Engheta,et al.  Light squeezing through arbitrarily shaped plasmonic channels and sharp bends , 2008 .

[8]  Joel R. Wendt,et al.  Multi-gigabit operation of a compact, broadband modulator based on ENZ confinement in indium oxide , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).

[9]  Yang Yu,et al.  A graphene-based electrochemical filter for water purification , 2014 .

[10]  Chang-Hua Liu,et al.  Graphene photodetectors with ultra-broadband and high responsivity at room temperature. , 2014, Nature nanotechnology.

[11]  S. Tretyakov,et al.  Strong spatial dispersion in wire media in the very large wavelength limit , 2002, cond-mat/0211204.

[12]  Michal Lipson,et al.  Graphene electro-optic modulator with 30 GHz bandwidth , 2015, Nature Photonics.

[13]  Lay Kee Ang,et al.  Electro-optical graphene plasmonic logic gates. , 2014, Optics letters.

[14]  Vincent Pagneux,et al.  Tunneling of electromagnetic energy in multiple connected leads using ε-near-zero materials. , 2013, Optics letters.

[15]  N. Peres,et al.  Optical conductivity of graphene in the visible region of the spectrum , 2008, 0803.1802.

[16]  Nader Engheta,et al.  Tunneling of electromagnetic energy through subwavelength channels and bends using epsilon-near-zero materials. , 2006, Physical review letters.

[17]  K. Loh,et al.  Graphene photonics, plasmonics, and broadband optoelectronic devices. , 2012, ACS nano.

[18]  Nader Engheta,et al.  Theory of supercoupling, squeezing wave energy, and field confinement in narrow channels and tight bends using ε near-zero metamaterials , 2007 .

[19]  Min Qiu,et al.  Super-reflection and cloaking based on zero index metamaterial , 2009, 0906.5543.

[20]  Bo Hou,et al.  Realizing almost perfect bending waveguides with anisotropic epsilon-near-zero metamaterials , 2012 .

[21]  G. Hanson.  Dyadic Green's functions and guided surface waves for a surface conductivity model of graphene , 2007, cond-mat/0701205.