# Chiral nihility effects on energy flow in chiral materials

Abstract : The propagation of electromagnetic plane waves in an isotropic chiral medium is characterized, and a special interest is shown in chiral nihility and the effects of chirality on energy transmission. In particular, the wave impedance is matched to that of free space. Moreover, the refractive index n is also matched in impedance to that of free space when an appropriate value of the chirality is chosen. A chiral nihility'' medium is explored in which both the permittivity and the permeability tend to zero. Some specific case studies of chiral nihility are presented, and Brewster angles are found to cover an extremely wide range. The E-field distributions in these different cases where the chiral slab is placed in free space are analyzed by using the appropriate constitutive relations. It is shown from numerical calculations that one can obtain some critical characteristics of the effects of chirality on energy transmission and reflection, such as transparency and power tunneling. (c) 2007 Optical Society of America.
Document type :
Journal articles

https://hal-univ-paris10.archives-ouvertes.fr/hal-01423005
Contributor : Shah Nawaz Burokur <>
Submitted on : Tuesday, December 27, 2016 - 9:41:02 PM
Last modification on : Tuesday, November 19, 2019 - 9:54:34 AM

### Citation

Cheng-Wei Qiu, Nawaz Burokur, Said Zouhd, Le-Wei Li. Chiral nihility effects on energy flow in chiral materials. Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 2008, 25 (1), pp.55-63. ⟨10.1364/JOSAA.25.000055⟩. ⟨hal-01423005⟩

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