naa a22 4500 510816509 CHVBK 20180411083510.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11468-013-9572-4 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9572-4 An Integrated Multistage Nanofocusing System [Elektronische Daten] [Jiannong Chen, Linwei Zhu, Feifei Wang, Wangzi Ma] We demonstrate an integrated multistage nanofocusing system which combines a conventional objective, a surface plasmonic lens, and a center-positioned rounded-tip cone nanoparticle. The surface plasmonic lens, fabricated on the cover glass which has been mounted on the biological microscopic objective, is composed of several concentric annular slits for exciting propagating surface plasmonic wave. The rounded-tip cone nanoparticle is for further generating non-propagating localized surface plasmonic wave. It is revealed that the enhancement of the nanoscale optical field can be improved by carefully choosing the appropriate numerical aperture of the objective to match the specific nanostructure of the surface plasmonic lens and choosing the relatively big cone angle of the nanoparticle. The investigation shows that a highly confined electric field as small as 20nm and an enhancement factor of 5 orders of magnitude can be achieved through this multistage nanofocusing system when the system is illuminated with a uniform radially polarized beam. Springer Science+Business Media New York, 2013 Nanofocusing nationallicence Multistage nationallicence Surface plasmonic lens nationallicence Radially polarized beam nationallicence Hybrid nationallicence Chen Jiannong School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut Zhu Linwei School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut Wang Feifei School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut Ma Wangzi School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut Plasmonics Springer US; http://www.springer-ny.com 8/4(2013-12-01), 1559-1565 1557-1955 8:4<1559 2013 8 11468 https://doi.org/10.1007/s11468-013-9572-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9572-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Jiannong School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut NATIONALLICENCE 700 1- Zhu Linwei School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut NATIONALLICENCE 700 1- Wang Feifei School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut NATIONALLICENCE 700 1- Ma Wangzi School of Physics and Optoelectronic Engineering, Ludong University, 264025, Yantai, China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/4(2013-12-01), 1559-1565 1557-1955 8:4<1559 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer