Inverse Designed THz Spectral Splitters
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2020
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| _version_ | 1866929565091233792 |
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| author | Banerji, Sourangsu Shi, Yu Su, Vivian Song-En Ghosh, Udayan Cooke, Jacqueline Kong, Yong Lin Liu, Lei Sensale-Rodriguez, Berardi |
| author_facet | Banerji, Sourangsu Shi, Yu Su, Vivian Song-En Ghosh, Udayan Cooke, Jacqueline Kong, Yong Lin Liu, Lei Sensale-Rodriguez, Berardi |
| contents | This letter reports proof-of-principle demonstration of 3D printable, low-cost, and compact THz spectral splitters based on diffractive optical elements (DOEs) designed to disperse the incident collimated broadband THz radiation (0.5 THz - 0.7 THz) at a pre-specified distance. Via inverse design, we show that it is possible to design such a diffractive optic, which can split the broadband incident spectrum in any desired fashion, as is evidenced from both FDTD simulations and measured intensity profiles using a 500-750 GHz VNA. Due to its straightforward construction without the usage of any movable parts, our approach, in principle, can have various applications such as in portable, low-cost spectroscopy as well as in wireless THz communication systems as a THz demultiplexer. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2011_06371 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Inverse Designed THz Spectral Splitters Banerji, Sourangsu Shi, Yu Su, Vivian Song-En Ghosh, Udayan Cooke, Jacqueline Kong, Yong Lin Liu, Lei Sensale-Rodriguez, Berardi Optics Applied Physics This letter reports proof-of-principle demonstration of 3D printable, low-cost, and compact THz spectral splitters based on diffractive optical elements (DOEs) designed to disperse the incident collimated broadband THz radiation (0.5 THz - 0.7 THz) at a pre-specified distance. Via inverse design, we show that it is possible to design such a diffractive optic, which can split the broadband incident spectrum in any desired fashion, as is evidenced from both FDTD simulations and measured intensity profiles using a 500-750 GHz VNA. Due to its straightforward construction without the usage of any movable parts, our approach, in principle, can have various applications such as in portable, low-cost spectroscopy as well as in wireless THz communication systems as a THz demultiplexer. |
| title | Inverse Designed THz Spectral Splitters |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2011.06371 |