Asymmetric wave propagation in planar chiral fibers
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Johnson_Asymmetric wave propagation.pdf
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Author(s)
Shemuly, Dana
Ruff, Zachary M.
Spektor, Grisha
Johnson, Steven G.
Fink, Yoel
Shapira, Ofer
Stolyarov, Alexander Mark
Date Issued
January 2013
Journal
Optics Express
Publisher
Optical Society of America
Citation
Shemuly, Dana, Zachary M. Ruff, Alexander M. Stolyarov, Grisha Spektor, Steven G. Johnson, Yoel Fink, and Ofer Shapira. “Asymmetric wave propagation in planar chiral fibers.” Optics Express 21, no. 2 (January 14, 2013): 1465. © 2013 OSA
Version
Final published version
Abstract
We demonstrate the realization of a two-dimensional chiral optical waveguide with an infinite translational symmetry that exhibits asymmetric wave propagation. The low-symmetry geometry of the cross-section that lacks any rotational and mirror symmetries shows in-principal directional asymmetric polarization rotation. We use general symmetry arguments to provide qualitative analysis of the waveguide's eigenstates and numerically corroborate this using finite element simulation. We show that despite the only perturbative break of time-reversal symmetry via small modal losses, the structure supports a non-degenerate pair of co-rotating elliptical modes. We fabricated meters long fiber with a spiral structure and studied its optical properties.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1364/oe.21.001465
