Title :
Compact antenna for unidirectionally coupling surface plasmons with ultra-broadband and wide-angle efficiency
Author :
Kun Li ; Fan Lu ; Zhonghua Wang ; Anshi Xu
Author_Institution :
State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Peking Univ., Beijing, China
Abstract :
A novel ultra-broadband and wide-angle plasmonic antenna composed of two cascaded sub-gratings is proposed, with ultra-broad spectral full-width-half-maximum (FWHM) of 400 nm and wide angular FWHM of 25°, nearly 4 times greater than that of the periodic reference gratings.
Keywords :
diffraction gratings; metamaterial antennas; optical couplers; plasmonics; surface plasmons; cascaded subgratings; periodic reference gratings; ultrabroad spectral full-width-half-maximum; ultrabroadband plasmonic antenna; unidirectionally coupling surface plasmons; wavelength 400 nm; wide-angle plasmonic antenna; Broadband antennas; Broadband communication; Couplings; Gratings; Optimized production technology; Plasmons;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
