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Title: Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers

Abstract

Here, we report visualizations of the bidirectional near-field optical transfer function for a waveguide-coupled plasmonic transducer as a metrology technique essential for successful development for mass-fabricated near-field devices. Plasmonic devices have revolutionized the observation of nanoscale phenomena, enabling optical excitation and readout from nanoscale regions of fabricated devices instead of as limited by optical diffraction. Visualizations of the plasmonic transducer modes were acquired both by local near-field excitation of the antenna on the front facet of a waveguide using the focused electron beam of a scanning electron microscope as a probe of the near-field cathodoluminescence during far-field collection from the back facet of the waveguide, and by local mapping of the optical near-field for the same antenna design using scattering scanning near-field optical microscopy as a probe of the near-field optical mode density for far-field light focused into the back facet of the waveguide. Strong agreement between both measurement types and numerical modeling was observed, indicating that the method enables crucial metrological comparisons of as fabricated device performance to as-modeled device expectations for heat-assisted magnetic recording heads, which can be extended to successful development of future near-field-on-chip devices such as optical processor interconnects.

Authors:
 [1];  [2];  [2];  [3];  [3];  [4]
  1. Univ. of Minnesota, Minneapolis, MN (United States); HGST (Western Digital Corp.), San Jose & Fremont, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. HGST (Western Digital Corp.), San Jose & Fremont, CA (United States)
  4. HGST (Western Digital Corp.), San Jose & Fremont, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1460350
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Related Information: © 2018 The Author(s).; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Otto, Lauren M., Ogletree, D. Frank, Aloni, Shaul, Staffaroni, Matteo, Stipe, Barry C., and Hammack, Aeron T. Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers. United States: N. p., 2018. Web. doi:10.1038/s41598-018-24061-3.
Otto, Lauren M., Ogletree, D. Frank, Aloni, Shaul, Staffaroni, Matteo, Stipe, Barry C., & Hammack, Aeron T. Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers. United States. doi:10.1038/s41598-018-24061-3.
Otto, Lauren M., Ogletree, D. Frank, Aloni, Shaul, Staffaroni, Matteo, Stipe, Barry C., and Hammack, Aeron T. Tue . "Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers". United States. doi:10.1038/s41598-018-24061-3. https://www.osti.gov/servlets/purl/1460350.
@article{osti_1460350,
title = {Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers},
author = {Otto, Lauren M. and Ogletree, D. Frank and Aloni, Shaul and Staffaroni, Matteo and Stipe, Barry C. and Hammack, Aeron T.},
abstractNote = {Here, we report visualizations of the bidirectional near-field optical transfer function for a waveguide-coupled plasmonic transducer as a metrology technique essential for successful development for mass-fabricated near-field devices. Plasmonic devices have revolutionized the observation of nanoscale phenomena, enabling optical excitation and readout from nanoscale regions of fabricated devices instead of as limited by optical diffraction. Visualizations of the plasmonic transducer modes were acquired both by local near-field excitation of the antenna on the front facet of a waveguide using the focused electron beam of a scanning electron microscope as a probe of the near-field cathodoluminescence during far-field collection from the back facet of the waveguide, and by local mapping of the optical near-field for the same antenna design using scattering scanning near-field optical microscopy as a probe of the near-field optical mode density for far-field light focused into the back facet of the waveguide. Strong agreement between both measurement types and numerical modeling was observed, indicating that the method enables crucial metrological comparisons of as fabricated device performance to as-modeled device expectations for heat-assisted magnetic recording heads, which can be extended to successful development of future near-field-on-chip devices such as optical processor interconnects.},
doi = {10.1038/s41598-018-24061-3},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {2018},
month = {4}
}

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