Chalcogenide Metasurfaces Enabling Ultra-Wideband Detectors from Visible to Mid-infrared
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909307953479680 |
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| author | Zhang, Shutao An, Shu Dai, Mingjin Wu, Qing Yang Steve Adanan, Nur Qalishah Zhang, Jun Liu, Yan Lee, Henry Yit Loong Wong, Nancy Lai Mun Suwardi, Ady Ding, Jun Simpson, Robert Edward Wang, Qi Jie Yang, Joel K. W. Dong, Zhaogang |
| author_facet | Zhang, Shutao An, Shu Dai, Mingjin Wu, Qing Yang Steve Adanan, Nur Qalishah Zhang, Jun Liu, Yan Lee, Henry Yit Loong Wong, Nancy Lai Mun Suwardi, Ady Ding, Jun Simpson, Robert Edward Wang, Qi Jie Yang, Joel K. W. Dong, Zhaogang |
| contents | Thermoelectric materials can be designed to support optical resonances across multiple spectral ranges to enable ultra-wide band photodetection. For instance, antimony telluride (Sb2Te3) chalcogenide exhibits interband plasmonic resonances in the visible range and Mie resonances in the mid-infrared (mid-IR) range, while simultaneously possessing large thermoelectric Seebeck coefficients. In this paper, we designed and fabricated Sb2Te3 metasurface devices to achieve resonant absorption for enabling photodetectors operating across an ultra-wideband spectrum, from visible to mid-IR. Furthermore, relying on asymmetric Sb2Te3 metasurface, we demonstrated the thermoelectric photodetectors with polarization-selectivity. This work provides a potential platform towards the portable ultrawide band spectrometers at room temperature, for environmental sensing applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_04763 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Chalcogenide Metasurfaces Enabling Ultra-Wideband Detectors from Visible to Mid-infrared Zhang, Shutao An, Shu Dai, Mingjin Wu, Qing Yang Steve Adanan, Nur Qalishah Zhang, Jun Liu, Yan Lee, Henry Yit Loong Wong, Nancy Lai Mun Suwardi, Ady Ding, Jun Simpson, Robert Edward Wang, Qi Jie Yang, Joel K. W. Dong, Zhaogang Optics Thermoelectric materials can be designed to support optical resonances across multiple spectral ranges to enable ultra-wide band photodetection. For instance, antimony telluride (Sb2Te3) chalcogenide exhibits interband plasmonic resonances in the visible range and Mie resonances in the mid-infrared (mid-IR) range, while simultaneously possessing large thermoelectric Seebeck coefficients. In this paper, we designed and fabricated Sb2Te3 metasurface devices to achieve resonant absorption for enabling photodetectors operating across an ultra-wideband spectrum, from visible to mid-IR. Furthermore, relying on asymmetric Sb2Te3 metasurface, we demonstrated the thermoelectric photodetectors with polarization-selectivity. This work provides a potential platform towards the portable ultrawide band spectrometers at room temperature, for environmental sensing applications. |
| title | Chalcogenide Metasurfaces Enabling Ultra-Wideband Detectors from Visible to Mid-infrared |
| topic | Optics |
| url | https://arxiv.org/abs/2409.04763 |