Increasing the density of passive photonic-integrated circuits via nanophotonic cloaking
Abstract
Photonic-integrated devices need to be adequately spaced apart to prevent signal cross-talk. This fundamentally limits their packing density. Here we report the use of nanophotonic cloaking to render neighbouring devices invisible to one another, which allows them to be placed closer together than is otherwise feasible. Specifically, we experimentally demonstrated waveguides that are spaced by a distance of ~λ0/2 and designed waveguides with centre-to-centre spacing as small as 600 nm (<λ0/2.5). Our experiments show a transmission efficiency >–2 dB and an extinction ratio >15 dB over a bandwidth larger than 60 nm. This performance can be improved with better design algorithms and industry-standard lithography. The nanophotonic cloak relies on multiple guided-mode resonances, which render such devices very robust to fabrication errors. Our devices are broadly complimentary-metal-oxide-semiconductor compatible, have a minimum pitch of 200 nm and can be fabricated with a single lithography step. In conclusion, the nanophotonic cloaks can be generally applied to all passive integrated photonics.
- Authors:
-
- Univ. of Utah, Salt Lake City, UT (United States)
- Publication Date:
- Research Org.:
- Univ. of Utah, Salt Lake City, UT (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1361385
- Grant/Contract Number:
- EE0005959
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 7; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; integrated optics; metamaterials
Citation Formats
Shen, Bing, Polson, Randy, and Menon, Rajesh. Increasing the density of passive photonic-integrated circuits via nanophotonic cloaking. United States: N. p., 2016.
Web. doi:10.1038/ncomms13126.
Shen, Bing, Polson, Randy, & Menon, Rajesh. Increasing the density of passive photonic-integrated circuits via nanophotonic cloaking. United States. https://doi.org/10.1038/ncomms13126
Shen, Bing, Polson, Randy, and Menon, Rajesh. Wed .
"Increasing the density of passive photonic-integrated circuits via nanophotonic cloaking". United States. https://doi.org/10.1038/ncomms13126. https://www.osti.gov/servlets/purl/1361385.
@article{osti_1361385,
title = {Increasing the density of passive photonic-integrated circuits via nanophotonic cloaking},
author = {Shen, Bing and Polson, Randy and Menon, Rajesh},
abstractNote = {Photonic-integrated devices need to be adequately spaced apart to prevent signal cross-talk. This fundamentally limits their packing density. Here we report the use of nanophotonic cloaking to render neighbouring devices invisible to one another, which allows them to be placed closer together than is otherwise feasible. Specifically, we experimentally demonstrated waveguides that are spaced by a distance of ~λ0/2 and designed waveguides with centre-to-centre spacing as small as 600 nm (<λ0/2.5). Our experiments show a transmission efficiency >–2 dB and an extinction ratio >15 dB over a bandwidth larger than 60 nm. This performance can be improved with better design algorithms and industry-standard lithography. The nanophotonic cloak relies on multiple guided-mode resonances, which render such devices very robust to fabrication errors. Our devices are broadly complimentary-metal-oxide-semiconductor compatible, have a minimum pitch of 200 nm and can be fabricated with a single lithography step. In conclusion, the nanophotonic cloaks can be generally applied to all passive integrated photonics.},
doi = {10.1038/ncomms13126},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {Wed Nov 09 00:00:00 EST 2016},
month = {Wed Nov 09 00:00:00 EST 2016}
}
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