Splitting of transmission peak due to the hole symmetry breaking

Yin, Xiao-gang; Huang, Cheng-ping; Shen, Zhi-qiang; Wang, Qian-jin; Zhu, Yong-yuan
April 2009
Applied Physics Letters;4/20/2009, Vol. 94 Issue 16, p161904
Academic Journal
We studied experimentally and theoretically the optical transmission through asymmetrical holes of a metal film, which is constructed by introducing small protuberances to the sides of individual square holes. Due to the symmetry breaking of the hole shape, an interesting transmission feature appears: both the Ag-glass (1, 0) and Ag-glass (1, 1) peaks split distinctly. Detailed studies indicate that the peak splitting is actually associated with the two asymmetrical waveguide surface-plasmon (WSP) modes confined on the surface of opposite hole walls. The finding demonstrates the crucial role of WSP modes and enriches our understanding of the phenomenon.


Related Articles

  • High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities. Xiangao Zhang; Mingzhen Shao; Xiaoqi Zeng // Sensors (14248220);Oct2016, Vol. 16 Issue 10, p1 

    In this paper, a type of compact nanosensor based on a metal-insulator-metal structure is proposed and investigated through cascading double asymmetric cavities, in which their metal cores shift along different axis directions. The cascaded asymmetric structure exhibits high transmission and...

  • TEACHING COMPLEX FIELDS OF SOFT MATER, PROPOSAL OF A NEW LIQUID CRYSTAL ANALOGY. Jagodič, Uroš; Staines, Jacob; Kralj, Samo; Repnik, Robert // Problems of Education in the 21st Century;2014, Vol. 61, p37 

    The key reason behind the richness of different structures and patterns displayed in nature is the universal mechanism of symmetry breaking. It shapes configurations at all length scales encountered in universe. Structures reached via symmetry breaking transitions are commonly described in terms...

  • Triangle defects in bowtie nanoantennas. Chen, Ji; He, Kebo; Zhang, Zhaoyu // Applied Physics A: Materials Science & Processing;Sep2013, Vol. 112 Issue 3, p591 

    The surface plasmon resonance (SPR) modes and near field gap enhancement of bowtie nanoantennas with triangle void defects are studied numerically. According to the location of the defects, we classify them into four categories: inner, edge, base and vertex defects. It is concluded that inner...

  • A simple mechanism for emergent chirality in achiral hard particle assembly. Carmichael, Scott P.; Shell, M. Scott // Journal of Chemical Physics;Oct2013, Vol. 139 Issue 16, p164705 

    For centuries, chirality has been appreciated as a key component in understanding how matter orders. While intuitively chiral particles can self-assemble into chiral superstructures, it is often less obvious how achiral particles can do the same. Here we show that there is a potentially general,...

  • Ultracold atoms: Feel the gauge. Ozawa, Tomoki // Nature Physics;Oct2015, Vol. 11 Issue 10, p801 

    The article discusses research on the translational symmetry-breaking pattern of ultracold atoms experiencing a synthetic magnetic field in an optical lattice. The study measured the kinetic and canonical momentum of ultracold gases in the presence of a synthetic magnetic field. It also examined...

  • Phase sensitivity of light dynamics in PT-symmetric couplers. Suchkov, Sergey; Dmitriev, Sergey; Sukhorukov, Andrey; Barashenkov, Igor; Andriyanova, Elina; Badgetdinova, Karina; Kivshar, Yuri // Applied Physics A: Materials Science & Processing;May2014, Vol. 115 Issue 2, p443 

    We study the sensitivity of light dynamics to the internal phase of propagating pulses in the two types of $\mathcal {PT}$-symmetric models. The first is a waveguide array with an embedded pair of waveguides with gain and loss, called $\mathcal {PT}$-coupler, and the second is a planar coupler...

  • Broken symmetry approach to density functional calculation of zero field splittings including anisotropic exchange interactions. Kessler, Eva M. V.; Schmitt, Sebastian; van Wüllen, Christoph // Journal of Chemical Physics;Nov2013, Vol. 139 Issue 18, p184110 

    The broken symmetry approach to the calculation of zero field splittings (or magnetic anisotropies) of multinuclear transition metal complexes is further developed. A procedure is suggested how to extract spin Hamiltonian parameters for anisotropic exchange from a set of broken symmetry density...

  • Mode Conversion of Propagating Surface Plasmons in Nanophotonic Networks Induced by Structural Symmetry Breaking. Deng Pan; Hong Wei; Zhili Jia; Hongxing Xu // Scientific Reports;5/16/2014, p1 

    Nanophotonic plasmon circuits may play important roles in next-generation information technology as semiconductor-based electronics is approaching the physical limit. The functions of such circuits rely on the rigorous control of plasmon propagation. One important aspect of such control is...

  • Analysis of Surface Plasmons in a Planar Waveguide System with Spectral Detection -- Experimental Results. OPILSKI, Z. // Acta Physica Polonica, A.;Dec2010, Vol. 118 Issue 6, p1221 

    The paper presents the results of experimental investigations concerning the plasmon resonance in a planar waveguide structure applied in the construction of sensors with spectral detection.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics