Ultralow loss chalcogenide waveguide platform for mid-IR on-chip spectrometer
Ultralow loss chalcogenide waveguide platform for mid-IR on-chip spectrometer
A chalcogenide waveguide platform with the combination of GeAsSeTe (IG3)/GeAsSe (IG2) on wet-/dry-etched silicon pedestals is reported. Chalcogenide glasses offer high index contrast and compact footprints, while the post-processing challenges are addressed using Si pedestals. The integration of IG2/IG3 chalcogenides on Si demonstrates ultralow loss of 0.08 ± 0.02 dB/cm at a wavelength of 10 μm. We have measured a thermo-optic coefficient of 1.1x10-4 K-1, which is comparable to Si and GaAs. The combination of simplified fabrication, minimal propagation losses and a strong thermooptic coefficient, positions this waveguide platform as a promising candidate for on-chip tunable long-wave IR spectrometers for practical applications in biomedical diagnostics and environmental sensing.
Mourgelas, Vasileios
7f9f5519-f86c-4c96-8a5d-a97c0ec9fdb5
Boonsit, Sirawit
adcc0726-5231-443c-ac1f-3ef222711d80
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Senthil Murugan, Ganapathy
a867686e-0535-46cc-ad85-c2342086b25b
Mourgelas, Vasileios
7f9f5519-f86c-4c96-8a5d-a97c0ec9fdb5
Boonsit, Sirawit
adcc0726-5231-443c-ac1f-3ef222711d80
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Senthil Murugan, Ganapathy
a867686e-0535-46cc-ad85-c2342086b25b
Mourgelas, Vasileios, Boonsit, Sirawit, Wilkinson, James S. and Senthil Murugan, Ganapathy
(2024)
Ultralow loss chalcogenide waveguide platform for mid-IR on-chip spectrometer.
García-Blanco, Sonia M. and Cheben, Pavel
(eds.)
In Integrated Optics: Devices, Materials, and Technologies XXVIII.
SPIE..
(doi:10.1117/12.3001161).
Record type:
Conference or Workshop Item
(Paper)
Abstract
A chalcogenide waveguide platform with the combination of GeAsSeTe (IG3)/GeAsSe (IG2) on wet-/dry-etched silicon pedestals is reported. Chalcogenide glasses offer high index contrast and compact footprints, while the post-processing challenges are addressed using Si pedestals. The integration of IG2/IG3 chalcogenides on Si demonstrates ultralow loss of 0.08 ± 0.02 dB/cm at a wavelength of 10 μm. We have measured a thermo-optic coefficient of 1.1x10-4 K-1, which is comparable to Si and GaAs. The combination of simplified fabrication, minimal propagation losses and a strong thermooptic coefficient, positions this waveguide platform as a promising candidate for on-chip tunable long-wave IR spectrometers for practical applications in biomedical diagnostics and environmental sensing.
This record has no associated files available for download.
More information
e-pub ahead of print date: 12 March 2024
Additional Information:
Invited
Identifiers
Local EPrints ID: 497685
URI: http://eprints.soton.ac.uk/id/eprint/497685
PURE UUID: 7a4fc933-96c8-4a9c-ae8b-96be7eb74e71
Catalogue record
Date deposited: 29 Jan 2025 18:26
Last modified: 30 Jan 2025 03:18
Export record
Altmetrics
Contributors
Author:
Vasileios Mourgelas
Author:
Sirawit Boonsit
Author:
Ganapathy Senthil Murugan
Editor:
Sonia M. García-Blanco
Editor:
Pavel Cheben
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics