Title :
Subwavelength focusing of hybrid Ag-Au plasmonic lens with variant slit widths
Author :
Min-Hsiu Chen ; Kai-Hao Chang ; Po-Tsung Lee
Author_Institution :
Dept. of Photonics & Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
We design the hybrid Ag-Au double-layered structure as plasmonic lens. The subwavelength focusing can be achieved with focal length within 500 nm. Furthermore, the focusing properties can be tuned by the thickness ratio of Ag/Au. Finally, we find the best of focusing effect as the thickness ratio is 1.
Keywords :
gold; lenses; optical design techniques; optical focusing; plasmonics; silver; surface plasmon resonance; Ag-Au; double-layered structure design; focal length; plasmonic lens; subwavelength focusing; thickness ratio; variant slit widths; Films; Focusing; Gold; Lenses; Optimized production technology; Periodic structures; Plasmons; plasmonic lens; subwavelength focusing; surface plasmon resonance;
Conference_Titel :
Next-Generation Electronics (ISNE), 2015 International Symposium on
Conference_Location :
Taipei
DOI :
10.1109/ISNE.2015.7132039
