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Fabrication and characterization of high-contrast mid-infrared GeTe4 channel waveguides

Fabrication and characterization of high-contrast mid-infrared GeTe4 channel waveguides
Fabrication and characterization of high-contrast mid-infrared GeTe4 channel waveguides
We report the fabrication and characterization of high index contrast (Δn ~ 0.9) GeTe4 channel waveguides on ZnSe substrate for evanescent-field based biosensing applications in the mid-infrared spectral region. GeTe4 films were deposited by RF sputtering and characterized for their structure, composition, transparency and dispersion. The lift-off technique was used to pattern the waveguide channels. Waveguiding between 2.5-3.7 µm and 6.4-7.5 µm was demonstrated and mode intensity profile and estimated propagation losses are given for the 3.5 µm wavelength.
0146-9592
2016-2019
Mittal, Vinita
fd5ee9dd-7770-416f-8f47-50ca158b39b0
Aghajani, Armen
4602c567-ed8e-4538-9d34-efde7db06dbb
Carpenter, Lewis
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Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Butement, Jonathan
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Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Wilkinson, James S.
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Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Mittal, Vinita
fd5ee9dd-7770-416f-8f47-50ca158b39b0
Aghajani, Armen
4602c567-ed8e-4538-9d34-efde7db06dbb
Carpenter, Lewis
0daa548e-0d42-4b06-b914-45bfbec41759
Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Butement, Jonathan
581ce321-f1af-4a2f-870a-9d8d45133586
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b

Mittal, Vinita, Aghajani, Armen, Carpenter, Lewis, Gates, James C., Butement, Jonathan, Smith, Peter G.R., Wilkinson, James S. and Murugan, Ganapathy Senthil (2015) Fabrication and characterization of high-contrast mid-infrared GeTe4 channel waveguides. Optics Letters, 40 (9), 2016-2019. (doi:10.1364/OL.40.002016).

Record type: Article

Abstract

We report the fabrication and characterization of high index contrast (Δn ~ 0.9) GeTe4 channel waveguides on ZnSe substrate for evanescent-field based biosensing applications in the mid-infrared spectral region. GeTe4 films were deposited by RF sputtering and characterized for their structure, composition, transparency and dispersion. The lift-off technique was used to pattern the waveguide channels. Waveguiding between 2.5-3.7 µm and 6.4-7.5 µm was demonstrated and mode intensity profile and estimated propagation losses are given for the 3.5 µm wavelength.

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Accepted/In Press date: 2 April 2015
e-pub ahead of print date: 24 April 2015
Published date: 1 May 2015
Organisations: Optoelectronics Research Centre
Learn more about Optoelectronics Research Centre research

Identifiers

Local EPrints ID: 376814
URI: http://eprints.soton.ac.uk/id/eprint/376814
DOI: doi:10.1364/OL.40.002016
ISSN: 0146-9592
PURE UUID: 1db92f1e-375b-4bd5-b3b1-78e143659ea8
ORCID for Vinita Mittal: ORCID iD orcid.org/0000-0003-4836-5327
ORCID for James C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for Peter G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X
ORCID for James S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697
ORCID for Ganapathy Senthil Murugan: ORCID iD orcid.org/0000-0002-2733-3273

Catalogue record

Date deposited: 11 May 2015 10:56
Last modified: 15 Mar 2024 03:23

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Contributors

Author: Vinita Mittal ORCID iD
Author: Armen Aghajani
Author: Lewis Carpenter
Author: James C. Gates ORCID iD
Author: Jonathan Butement
Author: Peter G.R. Smith ORCID iD
Author: James S. Wilkinson ORCID iD
Author: Ganapathy Senthil Murugan ORCID iD

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