Yin, X. H. et al. Beam switching and bifocal zoom lensing using active plasmonic metasurfaces. Light: Science & Applications, 6, e17016 (2017).
DOI:
Yin, X. H. et al. Beam switching and bifocal zoom lensing using active plasmonic metasurfaces. Light: Science & Applications, 6, e17016 (2017). DOI: 10.1038/lsa.2017.16.
Beam switching and bifocal zoom lensing using active plasmonic metasurfaces
Compact nanophotonic elements exhibiting adaptable properties are essential components for the miniaturization of powerful optical technologies such as adaptive optics and spatial light modulators. While the larger counterparts typically rely on mechanical actuation
this can be undesirable in some cases on a microscopic scale due to inherent space restrictions. Here
we present a novel design concept for highly integrated active optical components that employs a combination of resonant plasmonic metasurfaces and the phase-change material Ge
3
Sb
2
Te
6
. In particular
we demonstrate beam switching and bifocal lensing
thus
paving the way for a plethora of active optical elements employing plasmonic metasurfaces
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