Comment on “Nonreciprocal Light Propagation in a Silicon Photonic Circuit”
Open Access
- 6 January 2012
- journal article
- editorial
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 335 (6064), 38
- https://doi.org/10.1126/science.1216682
Abstract
We show that the structure demonstrated by Feng et al . (Reports, 5 August 2011, p. 729) cannot enable optical isolation because it possesses a symmetric scattering matrix. Moreover, one cannot construct an optical isolator by incorporating this structure into any system as long as the system is linear and time-independent and is described by materials with a scalar dielectric function.Keywords
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