Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensor
In this study, a ray tracing model based on the law of reflection in vector form was developed to obtain the design parameters of multipass cells (MPC) with dense spot patterns. Four MPCs with distinct patterns were obtained using an established mathematical model. An MPC with a four-concentric-circ...
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| Format: | Article |
| Language: | English |
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Light Publishing Group
2025-04-01
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| Series: | Light: Advanced Manufacturing |
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| Online Access: | https://www.light-am.com/article/doi/10.37188/lam.2025.001 |
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| author | Yufei Ma Yahui Liu Ying He Shunda Qiao Haiyue Sun |
| author_facet | Yufei Ma Yahui Liu Ying He Shunda Qiao Haiyue Sun |
| author_sort | Yufei Ma |
| collection | DOAJ |
| description | In this study, a ray tracing model based on the law of reflection in vector form was developed to obtain the design parameters of multipass cells (MPC) with dense spot patterns. Four MPCs with distinct patterns were obtained using an established mathematical model. An MPC with a four-concentric-circle pattern exhibited the longest optical path length (OPL) of approximately 38 m and an optimal ratio of optical path length to volume (RLV) of 13.8 cm-2. A light-induced thermoelastic spectroscopy (LITES)-based methane (CH4) sensor was constructed for the first time using the developed optimal MPC and Raman fiber amplifier (RFA). A novel trapezoidal-tip quartz tuning fork (QTF) was used as the detector to further improve the sensing performance. The CH4-LITES sensor exhibited an excellent linear response to optical power and CH4 concentration. The minimum detection limit (MDL) of the CH4-LITES sensor reached 322 ppb when the output optical power of the RFA was 350 mW. The Allan deviation of the system indicated that the MDL decreased to 59.5 ppb when the average time was increased to 100 s. |
| format | Article |
| id | doaj-art-e465314b45e0483391f3a7183d632c5a |
| institution | Kabale University |
| issn | 2689-9620 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Light Publishing Group |
| record_format | Article |
| series | Light: Advanced Manufacturing |
| spelling | doaj-art-e465314b45e0483391f3a7183d632c5a2025-08-20T03:45:10ZengLight Publishing GroupLight: Advanced Manufacturing2689-96202025-04-016151310.37188/lam.2025.001Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensorYufei MaYahui LiuYing HeShunda QiaoHaiyue SunIn this study, a ray tracing model based on the law of reflection in vector form was developed to obtain the design parameters of multipass cells (MPC) with dense spot patterns. Four MPCs with distinct patterns were obtained using an established mathematical model. An MPC with a four-concentric-circle pattern exhibited the longest optical path length (OPL) of approximately 38 m and an optimal ratio of optical path length to volume (RLV) of 13.8 cm-2. A light-induced thermoelastic spectroscopy (LITES)-based methane (CH4) sensor was constructed for the first time using the developed optimal MPC and Raman fiber amplifier (RFA). A novel trapezoidal-tip quartz tuning fork (QTF) was used as the detector to further improve the sensing performance. The CH4-LITES sensor exhibited an excellent linear response to optical power and CH4 concentration. The minimum detection limit (MDL) of the CH4-LITES sensor reached 322 ppb when the output optical power of the RFA was 350 mW. The Allan deviation of the system indicated that the MDL decreased to 59.5 ppb when the average time was increased to 100 s.https://www.light-am.com/article/doi/10.37188/lam.2025.001light-induced thermoelastic spectroscopymultipass cellraman fiber amplifiergas sensing |
| spellingShingle | Yufei Ma Yahui Liu Ying He Shunda Qiao Haiyue Sun Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensor Light: Advanced Manufacturing light-induced thermoelastic spectroscopy multipass cell raman fiber amplifier gas sensing |
| title | Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensor |
| title_full | Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensor |
| title_fullStr | Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensor |
| title_full_unstemmed | Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensor |
| title_short | Design of multipass cell with dense spot patterns and its performance in a light-induced thermoelastic spectroscopy-based methane sensor |
| title_sort | design of multipass cell with dense spot patterns and its performance in a light induced thermoelastic spectroscopy based methane sensor |
| topic | light-induced thermoelastic spectroscopy multipass cell raman fiber amplifier gas sensing |
| url | https://www.light-am.com/article/doi/10.37188/lam.2025.001 |
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