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Design and Simulation of a Bifocal lens based on Dielectric Metasurface
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| Mohammad mahdi Shanei *1, Mahdieh Hashemi2 |
1- Nanomaterials Group, Department of Materials Engineering, Tarbiat Modares University (TMU), P.O. Box 14115-143, Tehran, Iran
2- Department of Physics, College of Science, Fasa University, Fasa 74617-81189, Iran |
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Abstract: (258 Views) |
| In this paper, we design and simulate a single and a bifocal lens at the wavelength of 700 nm. Metasurfaces are 2-D form of bulky metamaterials which consist of an array of resonators. To reduce the radiative loss and enhancement of efficiency, we take advantage of dielectric resonators such as Silicon. In these constitutions, the resonance modes excited by means of displacement currents. Finally, to focus the incident light at two different areas, a phase modulation has been applied on the arrangement of resonators. |
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| Keywords: Dielectric resonator, Metasurface, Bifocal lens, Phase Modulation |
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Full-Text [PDF 977 kb]
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Type of Study: Research |
Subject:
Special
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