Magnetically controlled terahertz modulator based on Fe3O4nanoparticle ferrofluids
| العنوان: | Magnetically controlled terahertz modulator based on Fe3O4nanoparticle ferrofluids |
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| المؤلفون: | Bo Zhang, Xiang Yu, Xin Liu, Jingling Shen, Luyao Xiong, Shu-Li He |
| المصدر: | Journal of Physics D: Applied Physics. 51:105003 |
| بيانات النشر: | IOP Publishing, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Ferrofluid, Materials science, Acoustics and Ultrasonics, Terahertz radiation, business.industry, Physics::Optics, Metamaterial, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Magnetic field, 010309 optics, Amplitude modulation, Modulation, 0103 physical sciences, Optoelectronics, 0210 nano-technology, Absorption (electromagnetic radiation), business, Fe3o4 nanoparticles |
| الوصف: | A multifunctional terahertz (THz) wave modulator fabricated from Fe3O4 nanoparticle ferrofluids and metamaterials was characterized in externally applied magnetic fields. Specifically, modulation depths and frequency shifts by the wave modulators were examined. A 34% THz amplitude modulation depth was demonstrated and the absorption peak of the metamaterial induced a frequency shift of 33 GHz at low magnetic field intensities. It is anticipated that this device structure and its tunable properties will have many potential applications in THz filtering, modulation, and sensing. |
| تدمد: | 1361-6463 0022-3727 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::352a3889511ffce3577938c4b72f319a https://doi.org/10.1088/1361-6463/aaab97 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........352a3889511ffce3577938c4b72f319a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616463 00223727 |
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