Multifunctional Nonlocal Metasurfaces
| Autor: | Nanfang Yu, Adam C. Overvig, Stephanie C. Malek |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
2019-20 coronavirus outbreak Frequency selectivity business.industry Continuum (topology) Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) General Physics and Astronomy FOS: Physical sciences Physics::Optics Grating 01 natural sciences Narrow band Wavelength 0103 physical sciences Optoelectronics Photonics 010306 general physics business Optics (physics.optics) Physics - Optics |
| Popis: | Diffractive photonic devices manipulate light via local and nonlocal optical modes. Local devices, such as metasurfaces, can shape a wavefront at multiple selected wavelengths, but inevitably modify light across the spectrum; nonlocal devices, such as grating filters, offer great frequency selectivity but limited spatial control. Here, we introduce a rational design paradigm using quasi-bound states in the continuum to realize multifunctional nonlocal devices: metasurfaces that produce narrowband spatially tailored wavefronts at multiple selected wavelengths and yet are otherwise transparent. 15 pages, 4 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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