| Literature DB >> 22194410 |
Li Fan1, Jian Wang, Leo T Varghese, Hao Shen, Ben Niu, Yi Xuan, Andrew M Weiner, Minghao Qi.
Abstract
A passive optical diode effect would be useful for on-chip optical information processing but has been difficult to achieve. Using a method based on optical nonlinearity, we demonstrate a forward-backward transmission ratio of up to 28 decibels within telecommunication wavelengths. Our device, which uses two silicon rings 5 micrometers in radius, is passive yet maintains optical nonreciprocity for a broad range of input power levels, and it performs equally well even if the backward input power is higher than the forward input. The silicon optical diode is ultracompact and is compatible with current complementary metal-oxide semiconductor processing.Entities:
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Year: 2011 PMID: 22194410 PMCID: PMC5563475 DOI: 10.1126/science.1214383
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728