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Seo, Kwanyong
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  • Flexible solar cell, transparent solar cell, PV-battery hybrid system, hetero-junction solar cell

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Reconfigurable Imaging Systems Using Elliptical Nanowires

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Title
Reconfigurable Imaging Systems Using Elliptical Nanowires
Other Titles
Reconfigurable Imaging Systems Using Elliptical Nanowires
Author
Schonbrun, EthanSeo, KwanyongCrozier, Kenneth B.
Keywords
Artificial dielectrics; nanowires; diffractive optics; birefringence
Issue Date
2011-10
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.11, no.10, pp.4299 - 4303
Abstract
Materials that have subwavelength structure can add degrees of freedom to optical system design that are not possible with bulk materials. We demonstrate two lenses that are composed out of lithographically patterned arrays of elliptical cross-section silicon nanowires, which can dynamically reconfigure their imaging properties in response to the polarization of the illumination. In each element, two different focusing functions are polarization encoded into a single lens. The first nanowire lens has a different focal length for each linear polarization state, thereby realizing the front end of a non-mechanical zoom imaging system. The second nanowire lens has a different optical axis for each linear polarization state, demonstrating stereoscopic image capture from a single physical aperture
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DOI
10.1021/nl202324s
ISSN
1530-6984
Appears in Collections:
ECHE_Journal Papers
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