Spectral imaging of flexible terahertz coding metasurface
| العنوان: | Spectral imaging of flexible terahertz coding metasurface |
|---|---|
| المؤلفون: | Biaobing Jin, Weili Li, Benwen Chen, Jingbo Wu, Taofeng Wang, Ze Shen, Jiacheng Cai, Peiheng Wu, Jian Chen, Shengxin Yang, Caihong Zhang |
| المصدر: | Applied Physics Letters. 118:081101 |
| بيانات النشر: | AIP Publishing, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010302 applied physics, Beamforming, Physics, medicine.medical_specialty, Physics and Astronomy (miscellaneous), business.industry, Terahertz radiation, Beam steering, Phase (waves), 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Spectral imaging, Optics, Transmission (telecommunications), Encoding (memory), 0103 physical sciences, medicine, 0210 nano-technology, business, Beam (structure) |
| الوصف: | Coding metasurfaces have emerged as a promising venue for terahertz (THz) beam steering and beamforming. In this study, we designed a transmission metasurface with a complementary structure based on Babinet's principle. The beam-steering capability of the coding metasurface is implemented by encoding “0” and “1” elements with different phase responses and by controlling the coding sequences. The deflection angle can be controlled by changing the period of these 0 and 1 elements. Despite the development of beam-steering technology, measurements of the direction pattern of steered THz beams remain challenging. Systems for THz time-domain spectroscopy and spectral imaging are used to characterize the flexible coding metasurfaces. The THz imaging system can provide information on the directional pattern of the beam. To verify the performance of the proposed metasurface, the experimental measurements of beam deflection were found to be consistent with the values yielded by a simulation. Our study provides an effective platform for the design and measurement of THz beam steering. |
| تدمد: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0043481 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6a9588835a751d988b0c38bdc7198ed0 https://doi.org/10.1063/5.0043481 |
| رقم الانضمام: | edsair.doi...........6a9588835a751d988b0c38bdc7198ed0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10773118 00036951 |
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| DOI: | 10.1063/5.0043481 |