In-Lab High Resolution Mid-infrared Up-conversion Stellar Interferometer Based on Synthetic Long Base-Line
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arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866916391611793408 |
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| author | Han, Zhao-Qi-Zhi Ge, Zheng Luo, Wen-Tao Cai, Yi-Fu Wang, Xiao-Hua Chen, Li Li, Wu-Zhen Zhou, Zhi-Yuan Shi, Bao-Sen |
| author_facet | Han, Zhao-Qi-Zhi Ge, Zheng Luo, Wen-Tao Cai, Yi-Fu Wang, Xiao-Hua Chen, Li Li, Wu-Zhen Zhou, Zhi-Yuan Shi, Bao-Sen |
| contents | Detecting mid-infrared (MIR) radiation has significant astronomical applications, although limited by unsatisfactory MIR detectors. Here we reported on the realization of a MIR up-conversion interferometer based on synthetic long base-line (SLBL) in the laboratory. The experimental system consisted of an interferometer and subsequent up-conversion detection part of mid-infrared signal, which streamlined the structure and enhanced the reliability of the system. By using a tungsten filament lamp as an imitated star, we not only achieved the single target angle resolution of 1.10 times 10^(-4) rad, but also obtained the field angle resolution of 3.0 times 10^(-4) rad of double star targets. The angular resolution is in inverse proportion to the length of baseline. The maximum length of simulated baseline in the laboratory is about 3cm. In a Keck Interferometer (KI) liked program, the base line can reach up to 85m leading to a corresponding angular resolution of 3.0 times 10^(-9) rad (about 1.8mas). The study will offer potential benefits in extending the usage of mid-infrared light in astronomical exploration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_14902 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | In-Lab High Resolution Mid-infrared Up-conversion Stellar Interferometer Based on Synthetic Long Base-Line Han, Zhao-Qi-Zhi Ge, Zheng Luo, Wen-Tao Cai, Yi-Fu Wang, Xiao-Hua Chen, Li Li, Wu-Zhen Zhou, Zhi-Yuan Shi, Bao-Sen Instrumentation and Methods for Astrophysics Applied Physics Optics Detecting mid-infrared (MIR) radiation has significant astronomical applications, although limited by unsatisfactory MIR detectors. Here we reported on the realization of a MIR up-conversion interferometer based on synthetic long base-line (SLBL) in the laboratory. The experimental system consisted of an interferometer and subsequent up-conversion detection part of mid-infrared signal, which streamlined the structure and enhanced the reliability of the system. By using a tungsten filament lamp as an imitated star, we not only achieved the single target angle resolution of 1.10 times 10^(-4) rad, but also obtained the field angle resolution of 3.0 times 10^(-4) rad of double star targets. The angular resolution is in inverse proportion to the length of baseline. The maximum length of simulated baseline in the laboratory is about 3cm. In a Keck Interferometer (KI) liked program, the base line can reach up to 85m leading to a corresponding angular resolution of 3.0 times 10^(-9) rad (about 1.8mas). The study will offer potential benefits in extending the usage of mid-infrared light in astronomical exploration. |
| title | In-Lab High Resolution Mid-infrared Up-conversion Stellar Interferometer Based on Synthetic Long Base-Line |
| topic | Instrumentation and Methods for Astrophysics Applied Physics Optics |
| url | https://arxiv.org/abs/2408.14902 |