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Chiral meta-interface: Polarity reversal of ellipticity through double layers consisting of transparent chiral and absorptive achiral media

Satoshi Tomita, Yuuka Kosaka, Hisao Yanagi, and Kei Sawada
Phys. Rev. B 87, 041404(R) – Published 22 January 2013

Abstract

We have studied circular dichroism (CD) in the visible region of composite and double-layer films consisting of a transparent chiral molecule, glucose, and an absorptive achiral dye, rhodamine. Composite and double-layer films show an absorption-induced CD response caused by chirality of glucose at 540 nm, where the rhodamine exhibits absorption. More importantly, in double layers, the polarity of the ellipticity in CD signals is found to be reversed when the incident direction is reversed. We discuss the origin of the polarity reversal, which is very similar to the magneto-optical effect, at the chiral meta-interface without magnetic field.

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  • Received 19 October 2012

DOI:https://doi.org/10.1103/PhysRevB.87.041404

©2013 American Physical Society

Authors & Affiliations

Satoshi Tomita1,*, Yuuka Kosaka1, Hisao Yanagi1, and Kei Sawada2

  • 1Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
  • 2RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan

  • *tomita@ms.naist.jp

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Issue

Vol. 87, Iss. 4 — 15 January 2013

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