Terahertz Chiral Optics with Ordered Carbon Nanotube Architectures
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918132958887936 |
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| author | Rodriguez-Barrios, Gustavo M. Baydin, Andrey Doumani, Jacques Kim, Dasom Everitt, Henry O. Kono, Junichiro |
| author_facet | Rodriguez-Barrios, Gustavo M. Baydin, Andrey Doumani, Jacques Kim, Dasom Everitt, Henry O. Kono, Junichiro |
| contents | Chiral optical terahertz (THz) devices have significant technological implications for telecommunications, spectroscopy, and sensing. Engineering tunable, broadband, and cost-effective THz chiral materials has long been recognized as a challenging endeavor and has been the bottleneck hindering the full exploitation of the THz spectrum. Here, we present an artificial structure based on aligned carbon nanotube films that exhibit a tunable broadband circular dichroism (CD) up to 2.8 degrees. Its behavior is reciprocal. The developed theoretical simulations are in agreement with the experiments and predict a further increase of CD signal up to ~30 degrees when more CNT layers are added. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_00330 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Terahertz Chiral Optics with Ordered Carbon Nanotube Architectures Rodriguez-Barrios, Gustavo M. Baydin, Andrey Doumani, Jacques Kim, Dasom Everitt, Henry O. Kono, Junichiro Optics Chiral optical terahertz (THz) devices have significant technological implications for telecommunications, spectroscopy, and sensing. Engineering tunable, broadband, and cost-effective THz chiral materials has long been recognized as a challenging endeavor and has been the bottleneck hindering the full exploitation of the THz spectrum. Here, we present an artificial structure based on aligned carbon nanotube films that exhibit a tunable broadband circular dichroism (CD) up to 2.8 degrees. Its behavior is reciprocal. The developed theoretical simulations are in agreement with the experiments and predict a further increase of CD signal up to ~30 degrees when more CNT layers are added. |
| title | Terahertz Chiral Optics with Ordered Carbon Nanotube Architectures |
| topic | Optics |
| url | https://arxiv.org/abs/2509.00330 |