Publication detail

Octave-spanning low-loss mid-IR waveguides based on semiconductor-loaded plasmonics

DAVID, M. DABROWSKA, A. SISTANI, M. DOGANLAR, I.C. HINKELMANN, E. DETZ, H. WEBER, W.M. LENDL, B. STRASSER, G. HINKOV, B.

Original Title

Octave-spanning low-loss mid-IR waveguides based on semiconductor-loaded plasmonics

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

NANOPARTICLES SYNTHESIS; THIN-FILMS; SILICON; SENSORS; LASERS; OXIDE; GE

Authors

DAVID, M.; DABROWSKA, A.; SISTANI, M.; DOGANLAR, I.C.; HINKELMANN, E.; DETZ, H.; WEBER, W.M.; LENDL, B.; STRASSER, G.; HINKOV, B.

Released

23. 12. 2021

Publisher

OPTICAL SOC AMER

Location

WASHINGTON

ISBN

1094-4087

Periodical

OPTICS EXPRESS

Year of study

29

Number

26

State

United States of America

Pages from

43567

Pages to

43579

Pages count

13

URL

https://opg.optica.org/oe/fulltext.cfm?uri=oe-29-26-43567&id=466006

BibTex

@article{BUT176263,
  author="DAVID, M. and DABROWSKA, A. and SISTANI, M. and DOGANLAR, I.C. and HINKELMANN, E. and DETZ, H. and WEBER, W.M. and LENDL, B. and STRASSER, G. and HINKOV, B.",
  title="Octave-spanning low-loss mid-IR waveguides based on semiconductor-loaded plasmonics",
  journal="OPTICS EXPRESS",
  year="2021",
  volume="29",
  number="26",
  pages="43567--43579",
  doi="10.1364/OE.443966",
  issn="1094-4087",
  url="https://opg.optica.org/oe/fulltext.cfm?uri=oe-29-26-43567&id=466006"
}