Title :
Plasmonic super-oscillations and sub-diffraction focusing
Author :
Guanghui Yuan ; Rogers, Edward T. F. ; Roy, Tonmoy ; Luping Du ; Zexiang Shen ; Zheludev, Nikolay I.
Author_Institution :
Centre for Disruptive Photonic Technol., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We demonstrate experimental focusing of surface plasmon polaritons beyond the plasmon diffraction limit using a super-oscillatory plasmonic antenna at the wavelength of 785 nm, achieving a hot-spot as small as 300 nm.
Keywords :
antennas; light diffraction; optical focusing; plasmonics; polaritons; surface plasmons; experimental focusing; hot-spot; plasmon diffraction limit; plasmonic super-oscillations; sub-diffraction focusing; super-oscillatory plasmonic antenna; surface plasmon polaritons; wavelength 785 nm; Diffraction; Finite difference methods; Focusing; Optical surface waves; Plasmons; Surface waves; Time-domain analysis;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
