Octave-spanning low-loss mid-IR waveguides based on semiconductor-loaded plasmonics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU143274" target="_blank" >RIV/00216305:26620/21:PU143274 - isvavai.cz</a>
Result on the web
<a href="https://opg.optica.org/oe/fulltext.cfm?uri=oe-29-26-43567&id=466006" target="_blank" >https://opg.optica.org/oe/fulltext.cfm?uri=oe-29-26-43567&id=466006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.443966" target="_blank" >10.1364/OE.443966</a>
Alternative languages
Result language
angličtina
Original language name
Octave-spanning low-loss mid-IR waveguides based on semiconductor-loaded plasmonics
Original language description
Plasmonic waveguides are crucial building blocks for integrated on-chip mid-infrared (mid-IR) sensors, which have recently attracted great interest as a sensing platform to target enhanced molecular sensing. However, while hosting a wide range of applications from spectroscopy to telecommunication, the mid-IR lacks suitable broadband solutions that provide monolithic integration with III-V materials. This work reports a novel concept based on hybrid semiconductor-metal surface plasmon polariton waveguides, which result in experimentally demonstrated low loss and broadband devices. Composed of a thin germanium slab on top of a gold layer, the waveguiding properties can be directly controlled by changing the geometrical parameters. The measured losses of our devices are as low as 6.73 dB/mm at 9.12 mu m and remain <15 dB/mm in the mid-IR range of 5.6-11.2 mu m. The octave-spanning capability of the waveguides makes them ideal candidates for combination with broadband mid-IR quantum cascade laser frequency combs and integrated spectroscopic sensors. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
OPTICS EXPRESS
ISSN
1094-4087
e-ISSN
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Volume of the periodical
29
Issue of the periodical within the volume
26
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
43567-43579
UT code for WoS article
000730136600099
EID of the result in the Scopus database
2-s2.0-85122064576