Super-focusing of visible and UV light using a meta surface

In this paper, a novel meta surface is proposed for super-focusing. This surface contains two slits surrounded by finite corrugations for enhanced focusing. This simple surface has the super-focusing ability to focus both near and far field light in a hot-spot with an FWHM much smaller than half the wavelength of the incident light. The structure is suitable for one dimensional and two dimensional focusing applications. The enhanced transmission through the double slit is also utilized for directional beaming over a wide cone of angles. Moreover, various structures have been proposed for super-focusing in the visible and ultraviolet wavelengths. The proposed structure lends itself to various applications, including subwavelength imaging and nanolithography.

[1]  Max Born,et al.  Principles of optics - electromagnetic theory of propagation, interference and diffraction of light (7. ed.) , 1999 .

[2]  Gaige Zheng,et al.  Beam focusing through a tapered subwavelength aperture surrounded by dielectric surface gratings , 2009 .

[3]  J. Pendry,et al.  Negative refraction makes a perfect lens , 2000, Physical review letters.

[4]  Luis Martín-Moreno,et al.  Light passing through subwavelength apertures , 2010 .

[5]  Tao Liu,et al.  Generating super-Gaussian light needle of 0.36λ beam size and pure longitudinal polarization , 2013 .

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

[7]  P.J.S.G. Ferreira,et al.  Superoscillations: Faster Than the Nyquist Rate , 2006, IEEE Transactions on Signal Processing.

[8]  M. Born.  Principles of Optics : Electromagnetic theory of propagation , 1970 .

[9]  Guofeng Song,et al.  Numerical Study of a High-Resolution Far-Field Scanning Optical Microscope via a Surface Plasmon-Modulated Light Source , 2007, Journal of Lightwave Technology.

[10]  Chunlei Du,et al.  Focal length modulation based on a metallic slit surrounded with grooves in curved depths , 2007 .

[11]  R. W. Christy,et al.  Optical Constants of the Noble Metals , 1972 .

[12]  Byoungho Lee,et al.  Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings , 2008 .

[13]  J. Bucklew,et al.  Theorem for high-resolution high-contrast image synthesis , 1985 .

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

[15]  J. Keating,et al.  Persistent current flux correlations calculated by quantum chaology , 1994 .

[16]  C. K. Lee,et al.  Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings. , 2006, Optics express.

[17]  Mohamed A Swillam,et al.  All-optical ultrafast control of beaming through a single sub-wavelength aperture in a metal film. , 2011, Optics express.

[18]  Chih-Kung Lee,et al.  Physical origin of directional beaming emitted from a subwavelength slit , 2005 .

[19]  Changbao Ma,et al.  Focusing light into deep subwavelength using metamaterial immersion lenses. , 2010, Optics express.

[20]  L. Helseth.  The almost perfect lens and focusing of evanescent waves , 2008 .

[21]  Vaidman,et al.  How the result of a measurement of a component of the spin of a spin-1/2 particle can turn out to be 100. , 1988, Physical review letters.

[22]  Leggett.  Comment on "How the result of a measurement of a component of the spin of a spin-(1/2 particle can turn out to be 100" , 1989, Physical review letters.

[23]  Yongqi Fu,et al.  Plasmonic Lenses: A Review , 2010 .

[24]  J. Zhang,et al.  Optical Properties and Applications of Shape-Controlled Metal Nanostructures , 2012 .

[25]  Sandu Popescu,et al.  Evolution of quantum superoscillations, and optical superresolution without evanescent waves , 2006 .

[26]  Michael V Berry,et al.  Evanescent and real waves in quantum billiards and Gaussian beams , 1994 .

[27]  Michael B. Johnston,et al.  Superfocusing of terahertz waves , 2007 .

[28]  A. Maradudin,et al.  Multiscale Beam Evolution and Shaping in Corrugated Plasmonic Systems References and Links 20. for Details See Comsol Multiphysics 3.5a User's Guide and Rf Module User's Guide , 2022 .

[29]  Nikolay I. Zheludev,et al.  Optical super-oscillations: sub-wavelength light focusing and super-resolution imaging , 2013 .

[30]  G. Zheng,et al.  Beam focusing from double subwavelength metallic slits filled with nonlinear material surrounded by dielectric surface gratings , 2012 .

[31]  L. Helseth.  Focusing of evanescent vector waves , 2010 .

[32]  M. J. Lockyear,et al.  Optical control over surface-plasmon-polariton-assisted THz transmission through a slit aperture. , 2008, Physical review letters.

[33]  P. Siddons.  Light propagation through atomic vapours , 2014 .

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

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

[36]  Nikolay I. Zheludev,et al.  Super-oscillatory optical needle , 2013 .