期刊
OPTICS EXPRESS
卷 23, 期 22, 页码 28849-28856出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.23.028849
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资金
- Texas Instruments Distinguished University Chair in Nanoelectronics endowment
- UT System Texas Nanoelectronics Research Superiority Award - State of Texas Emerging Technology Fund
Engaging both theory and experiment, we investigate resonant photonic lattices in which the duty cycle tends to zero. Corresponding dielectric nanowire grids are mostly empty space if operated as membranes in vacuum or air. These grids are shown to be effective wideband reflectors with impressive polarizing properties. We provide computed results predicting nearly complete reflection and attendant polarization extinction in multiple spectral regions. Experimental results with Si nanowire arrays with 10% duty cycle show similar to 200-nm-wide band of high reflection for one polarization state and free transmission for the orthogonal state. These results agree quantitatively with theoretical predictions. It is fundamentally extremely significant that the wideband spectral expressions presented can be generated in these minimal systems. (C)2015 Optical Society of America
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