On-chip narrowband thermal emitter for filter-free gas sensing
Gas sensing technology has become more significant because of its widespread and common application in many areas, especially poisonous gas sensing and environmental analysis. Productive light source perfect to integral Complementary metal oxide semiconductor (COMS) innovation are key segments for m...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2020
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| Online Access: | https://hdl.handle.net/10356/139030 |
| _version_ | 1811683802365296640 |
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| author | Tao, Xingyu |
| author2 | Luo Yu |
| author_facet | Luo Yu Tao, Xingyu |
| author_sort | Tao, Xingyu |
| collection | NTU |
| description | Gas sensing technology has become more significant because of its widespread and common application in many areas, especially poisonous gas sensing and environmental analysis. Productive light source perfect to integral Complementary metal oxide semiconductor (COMS) innovation are key segments for minimal effort [1], conservative mid-infrared gas sensing frameworks. However, most gas sensors on the market are based on nondispersive infrared technology (NDIR) which is not efficient because the lack of integral COMS. In this project, we propose a new optical gas sensing system by combining a on-chip narrowband warm light source for the mid-infrared wavelength with a flat Metalens in micron thickness. Here, we design and demonstrate Metalenses in the mid-infrared wavelength by patterning a group of germanium nano fins. The Metalenses operating at 3-6μm are simulated by using finite-difference time-domain (FDTD) software. |
| first_indexed | 2024-10-01T04:18:31Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/139030 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:18:31Z |
| publishDate | 2020 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1390302023-07-07T18:43:23Z On-chip narrowband thermal emitter for filter-free gas sensing Tao, Xingyu Luo Yu School of Electrical and Electronic Engineering luoyu@ntu.edu.sg Engineering::Electrical and electronic engineering Gas sensing technology has become more significant because of its widespread and common application in many areas, especially poisonous gas sensing and environmental analysis. Productive light source perfect to integral Complementary metal oxide semiconductor (COMS) innovation are key segments for minimal effort [1], conservative mid-infrared gas sensing frameworks. However, most gas sensors on the market are based on nondispersive infrared technology (NDIR) which is not efficient because the lack of integral COMS. In this project, we propose a new optical gas sensing system by combining a on-chip narrowband warm light source for the mid-infrared wavelength with a flat Metalens in micron thickness. Here, we design and demonstrate Metalenses in the mid-infrared wavelength by patterning a group of germanium nano fins. The Metalenses operating at 3-6μm are simulated by using finite-difference time-domain (FDTD) software. Bachelor of Engineering (Electrical and Electronic Engineering) 2020-05-15T01:52:14Z 2020-05-15T01:52:14Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/139030 en A2123-191 application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering Tao, Xingyu On-chip narrowband thermal emitter for filter-free gas sensing |
| title | On-chip narrowband thermal emitter for filter-free gas sensing |
| title_full | On-chip narrowband thermal emitter for filter-free gas sensing |
| title_fullStr | On-chip narrowband thermal emitter for filter-free gas sensing |
| title_full_unstemmed | On-chip narrowband thermal emitter for filter-free gas sensing |
| title_short | On-chip narrowband thermal emitter for filter-free gas sensing |
| title_sort | on chip narrowband thermal emitter for filter free gas sensing |
| topic | Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/139030 |
| work_keys_str_mv | AT taoxingyu onchipnarrowbandthermalemitterforfilterfreegassensing |