Universal reconstructive polarimetry with graphene-metal infrared photodetectors
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arXiv
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| Autores principales: | , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866910064635281408 |
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| author | Semkin, Valentin Kapralov, Kirill Mazurenko, Ilya Kashchenko, Mikhail Morozov, Alexander Matyushkin, Yakov Mylnikov, Dmitry Bandurin, Denis Lin, Li Bocharov, Alexey Svintsov, Dmitry |
| author_facet | Semkin, Valentin Kapralov, Kirill Mazurenko, Ilya Kashchenko, Mikhail Morozov, Alexander Matyushkin, Yakov Mylnikov, Dmitry Bandurin, Denis Lin, Li Bocharov, Alexey Svintsov, Dmitry |
| contents | Recent advent of smart photodetectors, where in-situ tuning of responsivity enables the reconstruction of light intensity, polarization and spectrum by a single device, has revolutionized the field of optoelectronics. So far, most such reconstructive detectors were realized with non-scalable technology of van der Waals stacking. Here, we demonstrate the infrared reconstructive polarimetry with photodetectors based on conventional gated graphene-metal junctions. The reconstruction exploits the gate tuning of polarization contrast, which enables the determination of both infrared power and polarization angle from photovoltage measurements at two different gate voltages. The physics enabling the polarimetry lies in polarization-dependent shift of the electron hot spot near the contact, and the gate tuning of photosensitive barrier width. We further show the universality of polarization reconstruction, i.e. its feasibility with different geometries of the junction, and with graphene of different quality, from boron-nitride encapsulated flakes to the scalable chemical vapor deposited films. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_02737 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Universal reconstructive polarimetry with graphene-metal infrared photodetectors Semkin, Valentin Kapralov, Kirill Mazurenko, Ilya Kashchenko, Mikhail Morozov, Alexander Matyushkin, Yakov Mylnikov, Dmitry Bandurin, Denis Lin, Li Bocharov, Alexey Svintsov, Dmitry Mesoscale and Nanoscale Physics Applied Physics Optics Recent advent of smart photodetectors, where in-situ tuning of responsivity enables the reconstruction of light intensity, polarization and spectrum by a single device, has revolutionized the field of optoelectronics. So far, most such reconstructive detectors were realized with non-scalable technology of van der Waals stacking. Here, we demonstrate the infrared reconstructive polarimetry with photodetectors based on conventional gated graphene-metal junctions. The reconstruction exploits the gate tuning of polarization contrast, which enables the determination of both infrared power and polarization angle from photovoltage measurements at two different gate voltages. The physics enabling the polarimetry lies in polarization-dependent shift of the electron hot spot near the contact, and the gate tuning of photosensitive barrier width. We further show the universality of polarization reconstruction, i.e. its feasibility with different geometries of the junction, and with graphene of different quality, from boron-nitride encapsulated flakes to the scalable chemical vapor deposited films. |
| title | Universal reconstructive polarimetry with graphene-metal infrared photodetectors |
| topic | Mesoscale and Nanoscale Physics Applied Physics Optics |
| url | https://arxiv.org/abs/2602.02737 |