@inproceedings{e48c7a0ba7474eb68ac13f8b21db80c1,
title = "Delay Time Characteristics of a Three-dimensional Terahertz Chiral Metamaterial for Asymmetric Transmission of Circularly Polarized Electromagnetic Waves",
abstract = "A three dimensional (3-D) terahertz (THz) chiral metamaterial (CMM) formed by gold spline structure is realized. Stacking of splines are made in such a way that mirror symmetry is broken along all three principal directions of the geometry and hence large optical activity is obtained. Full-wave electromagnetic simulation reveal that the proposed structure shows broadband asymmetric polarization conversion for circularly polarized waves in the frequency range of 6.1 THz to 7.4 THz. A right-handed (RCP) and left-handed circularly polarized (LCP) pulse propagating through 3-D CMM is recorded. The delay time associated with RCP-to-LCP conversion and LCP-to-RCP conversion is computed through THz pulse propagation in the CMM. From the delay time plot, it is observed that proposed CMM shows negative group delay associated with RCP-to-LCP conversion resonance. The issues related with interpreting the group delay time for asymmetric transmission phenomenon are further discussed.",
author = "Amaljith, {C. K.} and M. Pavithra and N. Yogesh",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019 ; Conference date: 17-06-2019 Through 20-06-2019",
year = "2019",
month = jun,
day = "1",
doi = "10.1109/PIERS-Spring46901.2019.9017837",
language = "English",
series = "Progress in Electromagnetics Research Symposium",
publisher = "Institute of Electrical and Electronics Engineers",
pages = "3287--3291",
booktitle = "2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019 - Proceedings",
address = "United States",
}