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Literature DB >> 20588473

Highly tunable optical activity in planar achiral terahertz metamaterials.

Ranjan Singh¹, Eric Plum, Weili Zhang, Nikolay I Zheludev.

Abstract

Using terahertz time domain spectroscopy we demonstrate tunable polarization rotation and circular dichroism in intrinsically non-chiral planar terahertz metamaterials without twofold rotational symmetry. The observed effect is due to extrinsic chirality arising from the mutual orientation of the metamaterial plane and the propagation direction of the incident terahertz wave.

Entities: Disease

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Year: 2010 PMID： 20588473 DOI： 10.1364/OE.18.013425

Source DB: PubMed Journal: Opt Express ISSN： 1094-4087 Impact factor: 3.894

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Cited

12 in total

1. Terahertz time-domain polarimetry (THz-TDP) based on the spinning E-O sampling technique: determination of precision and calibration.

Authors: Kuangyi Xu; Elyas Bayati; Kenichi Oguchi; Shinichi Watanabe; Dale P Winebrenner; M Hassan Arbab
Journal: Opt Express Date: 2020-04-27 Impact factor: 3.894

Highly tunable optical activity in planar achiral terahertz metamaterials.

1. Terahertz time-domain polarimetry (THz-TDP) based on the spinning E-O sampling technique: determination of precision and calibration.

2. Microelectromechanical Maltese-cross metamaterial with tunable terahertz anisotropy.

3. Coherent control of optical polarization effects in metamaterials.

4. Numerical study of achiral phase-change metamaterials for ultrafast tuning of giant circular conversion dichroism.

5. Extrinsic 2D chirality: giant circular conversion dichroism from a metal-dielectric-metal square array.

6. Broadband angle- and permittivity-insensitive nondispersive optical activity based on planar chiral metamaterials.

7. Strong, spectrally-tunable chirality in diffractive metasurfaces.

8. Dual-polarity metamaterial circular polarizer based on giant extrinsic chirality.

9. Hybrid metamaterial switching for manipulating chirality based on VO2 phase transition.

10. Dual-band Circular Polarizer Based on Simultaneous Anisotropy and Chirality in Planar Metamaterial.