Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications
Spiral waveguides on a new germanium-on-silicon nitride (GON) platform with a wide transparency and a large core-clad index contrast for mid-infrared (mid-IR) sensing applications are demonstrated. Spiral waveguide sensors with a low bending loss on this platform enable compact sensors for mid-IR ab...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8356642/ |
| _version_ | 1818603341087768576 |
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| author | Wei Li P. Anantha Kwang Hong Lee Hao Dong Qiu Xin Guo Simon Chun Kiat Goh Lin Zhang Hong Wang Richard A. Soref Chuan Seng Tan |
| author_facet | Wei Li P. Anantha Kwang Hong Lee Hao Dong Qiu Xin Guo Simon Chun Kiat Goh Lin Zhang Hong Wang Richard A. Soref Chuan Seng Tan |
| author_sort | Wei Li |
| collection | DOAJ |
| description | Spiral waveguides on a new germanium-on-silicon nitride (GON) platform with a wide transparency and a large core-clad index contrast for mid-infrared (mid-IR) sensing applications are demonstrated. Spiral waveguide sensors with a low bending loss on this platform enable compact sensors for mid-IR absorption spectroscopy. A minimum volumetric concentration of 5% isopropanol (IPA) in an IPA-acetone mixture is measured. This detection limit is three times lower than the counterpart waveguide, fabricated on the regular germanium-on-silicon platform with similar propagation loss at 3.73 μm wavelength. This silicon-compatible GON sensor is promising for applications such as environmental studies, industrial leak detection, process control, medical breath analysis, and many more. |
| first_indexed | 2024-12-16T13:21:38Z |
| format | Article |
| id | doaj.art-bb232b57952d40108d9c88849456ab29 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-16T13:21:38Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-bb232b57952d40108d9c88849456ab292022-12-21T22:30:19ZengIEEEIEEE Photonics Journal1943-06552018-01-011031710.1109/JPHOT.2018.28299888356642Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing ApplicationsWei Li0https://orcid.org/0000-0003-3379-5578P. Anantha1Kwang Hong Lee2https://orcid.org/0000-0002-3146-5420Hao Dong Qiu3Xin Guo4Simon Chun Kiat Goh5Lin Zhang6Hong Wang7https://orcid.org/0000-0002-2183-6865Richard A. Soref8Chuan Seng Tan9https://orcid.org/0000-0003-1250-9165School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeLow Energy Electronic System, Singapore-MIT Alliance for Research and Technology, Singapore, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeDepartment of Engineering, University of Massachusetts at Boston, Boston, MA, USASchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, SingaporeSpiral waveguides on a new germanium-on-silicon nitride (GON) platform with a wide transparency and a large core-clad index contrast for mid-infrared (mid-IR) sensing applications are demonstrated. Spiral waveguide sensors with a low bending loss on this platform enable compact sensors for mid-IR absorption spectroscopy. A minimum volumetric concentration of 5% isopropanol (IPA) in an IPA-acetone mixture is measured. This detection limit is three times lower than the counterpart waveguide, fabricated on the regular germanium-on-silicon platform with similar propagation loss at 3.73 μm wavelength. This silicon-compatible GON sensor is promising for applications such as environmental studies, industrial leak detection, process control, medical breath analysis, and many more.https://ieeexplore.ieee.org/document/8356642/Integrated optics devicesintegrated optics materialssensorwaveguidesabsorption. |
| spellingShingle | Wei Li P. Anantha Kwang Hong Lee Hao Dong Qiu Xin Guo Simon Chun Kiat Goh Lin Zhang Hong Wang Richard A. Soref Chuan Seng Tan Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications IEEE Photonics Journal Integrated optics devices integrated optics materials sensor waveguides absorption. |
| title | Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications |
| title_full | Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications |
| title_fullStr | Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications |
| title_full_unstemmed | Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications |
| title_short | Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications |
| title_sort | spiral waveguides on germanium on silicon nitride platform for mid ir sensing applications |
| topic | Integrated optics devices integrated optics materials sensor waveguides absorption. |
| url | https://ieeexplore.ieee.org/document/8356642/ |
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