Uncooled Poisson Bolometer for High-Speed Event-Based Long-wave Thermal Imaging
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866917223795261440 |
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| author | Mousa, Mohamed A. Bauer, Leif Singh, Utkarsh Yang, Ziyi Deka, Angshuman Jacob, Zubin |
| author_facet | Mousa, Mohamed A. Bauer, Leif Singh, Utkarsh Yang, Ziyi Deka, Angshuman Jacob, Zubin |
| contents | Event-based vision provides high-speed, energy-efficient sensing for applications such as autonomous navigation and motion tracking. However, implementing this technology in the long-wave infrared remains a significant challenge. Traditional infrared sensors are hindered by slow thermal response times or the heavy power requirements of cryogenic cooling. Here, we introduce the first event-based infrared detector operating in a Poisson-counting regime. This is realized with a spintronic Poisson bolometer capable of broadband detection from 0.8-14$μ\text{m}$. In this regime, infrared signals are detected through statistically resolvable changes in stochastic switching events. This approach enables room-temperature operation with high timing resolution. Our device achieves a maximum event rate of 1,250 Hz, surpassing the temporal resolution of conventional uncooled microbolometers by a factor of 4. Power consumption is kept low at 0.2$μ$W per pixel. This work establishes an operating principle for infrared sensing and demonstrates a pathway toward high-speed, energy-efficient, event-driven thermal imaging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_18583 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Uncooled Poisson Bolometer for High-Speed Event-Based Long-wave Thermal Imaging Mousa, Mohamed A. Bauer, Leif Singh, Utkarsh Yang, Ziyi Deka, Angshuman Jacob, Zubin Optics Image and Video Processing Applied Physics Event-based vision provides high-speed, energy-efficient sensing for applications such as autonomous navigation and motion tracking. However, implementing this technology in the long-wave infrared remains a significant challenge. Traditional infrared sensors are hindered by slow thermal response times or the heavy power requirements of cryogenic cooling. Here, we introduce the first event-based infrared detector operating in a Poisson-counting regime. This is realized with a spintronic Poisson bolometer capable of broadband detection from 0.8-14$μ\text{m}$. In this regime, infrared signals are detected through statistically resolvable changes in stochastic switching events. This approach enables room-temperature operation with high timing resolution. Our device achieves a maximum event rate of 1,250 Hz, surpassing the temporal resolution of conventional uncooled microbolometers by a factor of 4. Power consumption is kept low at 0.2$μ$W per pixel. This work establishes an operating principle for infrared sensing and demonstrates a pathway toward high-speed, energy-efficient, event-driven thermal imaging. |
| title | Uncooled Poisson Bolometer for High-Speed Event-Based Long-wave Thermal Imaging |
| topic | Optics Image and Video Processing Applied Physics |
| url | https://arxiv.org/abs/2601.18583 |