Globally enhanced chiral field generation by negative-index metamaterials

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


We show that negative-index metamaterials can generate chiral electromagnetic fields, which can be used to enhance molecular chiroptical signals by inducing strong local magnetic fields. Compared to circularly polarized light (CPL), the enhanced chiral field generated by a double-fishnet negative-index metamaterial shows a 3.5-fold enhancement of the volume-averaged optical chirality and possesses the same handedness as that of incident CPL, thereby forming a globally enhanced chiral field. By analyzing near-field configurations, the mechanism of the optical chirality enhancement by double-fishnet negative-index metamaterial is elucidated. We thus anticipate that these metamaterials have potential applications in chiroptical spectroscopy.

Original languageEnglish
Article number161405
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number16
Publication statusPublished - 2014 Apr 23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


Dive into the research topics of 'Globally enhanced chiral field generation by negative-index metamaterials'. Together they form a unique fingerprint.

Cite this