Abstract
The optical chirality of the double “L” structures is investigated by the finite element method in this paper. The simulated results show that the double “L” structure has distinct chiral effect for the distance less than 300 nm. For the double “L” structure with the angle of 90°, the peak wavelength of the extinction coefficient for the left circular polarized light is larger than it for the right circular polarized light. The CD spectra are almost at the same wavelength for the distance 175–300 nm, while its wavelength increases with the decrease of the distance from 175 to 100 nm. Although the chiral effect of the double “L” structure for the angle 75° is similar with the structure for the angle 90°, the chiral effect of the structure with the angle 105° is opposite with the structure for the angle 75° and 90°.
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References
Alali, F., Kim, Y.H., Baev, A., Furlani, E.P.: Plasmon-enhanced metasurfaces for controlling optical polarization. ACS Photonics 1, 507–515 (2014)
Bai, B.F., Svirko, Y., Turunen, J., Vallius, T.: Optical activity in planar chiral metamaterials: theoretical study. Phys. Rev. A 76(2), 023811 (2007)
Barron, L.D.: Molecular Light Scattering and Optical Activity, 2nd edn. Cambridge University Press, Cambridge (2004)
Bosnich, T.: The application of exciton theory to the determination of the absolute configuration of inorganic complexes. Acc. Chem. Res. 2, 266–273 (1969)
Govorov, A.O., Fan, Z.Y., Hernandez, P., Slocik, J.M., Naik, R.R.: Theory of circular dichroism of nanomaterials comprising chiral molecules and nanocrystals: plasmon enhancement, dipole interactions, and dielectric effects. Nano Lett. 10, 1374–1382 (2010)
Hentschel, M., Ferry, V.E., Alivisatos, A.P.: Optical rotation reversal in the optical response of chiral plasmonic nanosystems: the role of plasmonic hybridization. ACS Photonics 2, 1253–1259 (2015)
Johnson, P.B., Christy, R.W.: Optical constants of the noble metals. Phys. Rev. B 6, 4370–4379 (1972)
Luisi, P.L.: The Emergence of Life—from Chemical Origins to Synthetic Biology. Cambridge University Press, Cambridge (2006)
Neubrech, F., Pucci, A., Cornelius, T.W., Karin, S., Garciaetxarri, A., Aizpurua, J.: Resonant plasmonic and vibrational coupling in a tailored nanoantenna for infrared detection. Phys. Rev. Lett. 101(15), 157403 (2008)
Rodger, A., Norden, B.: Circular Dichroism and Linear Dichroism. Oxford University Press, Oxford (1997)
Stiles, P.L., Dieringer, J.A., Shah, N.C., Van Duyne, R.R.: Surface-enhanced Raman spectroscopy. Ann. Rev. Anal. Chem. 1, 601–626 (2008)
Wallace, B.A., Janes, R.W.: Modern Technique for Circular Dichroism and Synchrotron Radiation Circular Dichroism Spectroscopy. IOS press, Amsterdam (2009)
Yin, X.H., Schaferling, M., Metzger, B., Giessen, H.: Interpreting chiral nanophotonic spectra: the plasmonic Born–Kuhn model. Nano Lett. 13, 6238–6243 (2013)
Zhou, J.F., Chowdhury, D.R., Zhao, R.K., Azad, A.K., Chen, H.T., Soukoulis, C.M., Tayor, A.J., O’Hara, J.F.: Terahertz chiral metamaterials with giant and dynamically tunable optical activity. Phys. Rev. B 86(3), 035448 (2012)
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The research is supported by NSFC 61274100.
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Chen, T., Mao, H. & Wang, J. Optical chirality of the double “L” structure. Opt Quant Electron 50, 247 (2018). https://doi.org/10.1007/s11082-018-1518-9
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DOI: https://doi.org/10.1007/s11082-018-1518-9