N
Na Liu
Researcher at Max Planck Society
Publications - 184
Citations - 18121
Na Liu is an academic researcher from Max Planck Society. The author has contributed to research in topics: Medicine & DNA origami. The author has an hindex of 51, co-authored 130 publications receiving 14896 citations. Previous affiliations of Na Liu include University of Stuttgart & University of Mainz.
Papers
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Infrared Perfect Absorber and Its Application As Plasmonic Sensor
TL;DR: A perfect plasmonic absorber is experimentally demonstrated at lambda = 1.6 microm, its polarization-independent absorbance is 99% at normal incidence and remains very high over a wide angular range of incidence around +/-80 degrees.
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Plasmonic analogue of electromagnetically induced transparency at the Drude damping limit.
Na Liu,Lutz Langguth,Thomas Weiss,Jürgen Kästel,Michael Fleischhauer,Tilman Pfau,Harald Giessen +6 more
TL;DR: A nanoplasmonic analogue of EIT is experimentally demonstrated using a stacked optical metamaterial to achieve a very narrow transparency window with high modulation depth owing to nearly complete suppression of radiative losses.
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Planar metamaterial analogue of electromagnetically induced transparency for plasmonic sensing.
Na Liu,Thomas Weiss,Martin Mesch,Lutz Langguth,Ulrike Eigenthaler,Michael Hirscher,Carsten Sönnichsen,Harald Giessen +7 more
TL;DR: A planar metamaterial analogue of electromagnetically induced transparency at optical frequencies is experimentally demonstrated and yields a sensitivity of 588 nm/RIU and a figure of merit of 3.8.
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Nanoantenna-enhanced gas sensing in a single tailored nanofocus
TL;DR: This work places a single palladium nanoparticle near the tip region of a gold nanoantenna and detects the changing optical properties of the system upon hydrogen exposure, demonstrating antenna-enhanced hydrogen sensing at the single-particle level.
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Three-dimensional metamaterials at optical frequencies
TL;DR: In this paper, the interaction between adjacent stacked layers using the method of plasmon hybridization was investigated, and the optical properties of stacked metamaterials with increasing layer numbers were analyzed.