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Title: Integrated digital metamaterials enables ultra-compact optical diodes

Abstract

We applied nonlinear optimization to design integrated digital metamaterials in silicon for unidirectional energy flow. Two devices, one for each polarization state, were designed, fabricated, and characterized. Both devices offer comparable or higher transmission efficiencies and extinction ratios, are easier to fabricate, exhibit larger bandwidths and are more tolerant to fabrication errors, when compared to alternatives. Furthermore, each device footprint is only 3μm × 3μm, which is the smallest optical diode ever reported. To illustrate the versatility of digital metamaterials, we also designed a polarization-independent optical diode.

Authors:
 [1];  [2];  [1]
  1. Univ. of Utah, Salt Lake City, UT (United States). Dept. of Electrical and Computer Engineering
  2. Univ. of Utah, Salt Lake City, UT (United States). Utah Nanofabrication Facility
Publication Date:
Research Org.:
Univ. of Utah, Salt Lake City, UT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1184792
Grant/Contract Number:  
EE0005959
Resource Type:
Accepted Manuscript
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 23; Journal Issue: 8; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Shen, Bing, Polson, Randy, and Menon, Rajesh. Integrated digital metamaterials enables ultra-compact optical diodes. United States: N. p., 2015. Web. doi:10.1364/OE.23.010847.
Shen, Bing, Polson, Randy, & Menon, Rajesh. Integrated digital metamaterials enables ultra-compact optical diodes. United States. https://doi.org/10.1364/OE.23.010847
Shen, Bing, Polson, Randy, and Menon, Rajesh. Thu . "Integrated digital metamaterials enables ultra-compact optical diodes". United States. https://doi.org/10.1364/OE.23.010847. https://www.osti.gov/servlets/purl/1184792.
@article{osti_1184792,
title = {Integrated digital metamaterials enables ultra-compact optical diodes},
author = {Shen, Bing and Polson, Randy and Menon, Rajesh},
abstractNote = {We applied nonlinear optimization to design integrated digital metamaterials in silicon for unidirectional energy flow. Two devices, one for each polarization state, were designed, fabricated, and characterized. Both devices offer comparable or higher transmission efficiencies and extinction ratios, are easier to fabricate, exhibit larger bandwidths and are more tolerant to fabrication errors, when compared to alternatives. Furthermore, each device footprint is only 3μm × 3μm, which is the smallest optical diode ever reported. To illustrate the versatility of digital metamaterials, we also designed a polarization-independent optical diode.},
doi = {10.1364/OE.23.010847},
journal = {Optics Express},
number = 8,
volume = 23,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 44 works
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Figures / Tables:

Figure 1 Figure 1: Ultra-compact integrated optical diodes. (a) Geometry of the device for TE. Steadystate light intensity distribution in the (b) forward and (c) backward directions for TE (Media 1). (d) Geometry of the device for TM. Steady-state light intensity distributions in the (e) forward and (f) backward directions for TMmore » (Media 2). Green arrows indicate the incident light propagation directions.« less

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