naa a22 4500 510816738 CHVBK 20180411083511.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-013-9496-z doi (NATIONALLICENCE)springer-10.1007/s11468-013-9496-z Effect of Edge Rounding on the Extinction Properties of Hollow Metal Nanoparticles [Elektronische Daten] [Jun Qian, Chen-xu Liu, Wu-deng Wang, Jing Chen, Yu-dong Li, Jing-jun Xu, Qian Sun] The optical responses of metal nanoparticles induced by subtle variations in geometry, especially by the rounding of the edges and corners, have generated great interest at present due to the requirement of fabricating refined structures of metal nanoparticles and theoretical simulations of the real particles. We study the effect of both inner and outer edge rounding on the optical properties of gold nanobox and gold nanobox dimer with small interparticle distances by using the discrete dipole approximation method. The shift of extinction peaks, the electric field distribution, and the variation of refractive index sensitivities by changing the curvature of the inner and outer edges of gold nanobox are investigated. We demonstrate that the optical properties of nanobox are more sensitive to the outer edge rounding than the inner edge rounding. By edge rounding of two very close gold nanoboxes, the blue shift of the dipolar and the quadrupolar plasmonic resonances of nanobox dimer are shown. Comparing with the inner edge rounding of nanobox dimer, we find that rounding of the outer edges causes the larger shift of the quadrupolar mode and approximate shift of the dipole mode. Springer Science+Business Media New York, 2013 Surface plasmon resonance nationallicence Nanoparticles nationallicence Edge rounding nationallicence Nanobox dimer nationallicence Discrete dipole approximation nationallicence Qian Jun MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut Liu Chen-xu MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut Wang Wu-deng MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut Chen Jing MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut Li Yu-dong MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut Xu Jing-jun MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut Sun Qian MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 955-962 1557-1955 8:2<955 2013 8 11468 https://doi.org/10.1007/s11468-013-9496-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9496-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Qian Jun MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Liu Chen-xu MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Wang Wu-deng MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Chen Jing MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Li Yu-dong MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Xu Jing-jun MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Sun Qian MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics Material and Technology, School of Physics, Nankai University, 300071, Tianjin, China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 955-962 1557-1955 8:2<955 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer