Plasmonic ratchet wheels: Switching circular dichroism by arranging chiral nanostructures

V. K. Valev; N. Smisdom; A. V. Silhanek; B. De Clercq; W. Gillijns; M. Ameloot; V. V. Moshchalkov; T. Verbiest

doi:10.1021/nl9021623

Plasmonic ratchet wheels: Switching circular dichroism by arranging chiral nanostructures

V. K. Valev
, N. Smisdom
, A. V. Silhanek
, B. De Clercq
, W. Gillijns
, M. Ameloot
, V. V. Moshchalkov
, T. Verbiest

Department of Physics

Hasselt University
KU Leuven

Research output: Contribution to journal › Article › peer-review

236 Citations (SciVal)

Abstract

We demonstrate circular dichrolsm (CD) in the second harmonic generation (SHG) signal from chiral assemblies of G-shaped nanostructures made of gold. The arrangement of the G shapes is crucial since upon reordering them the SHG-CD effect disappears. Microscopy reveals SHG "hotspots" assemblies, which originate in enantiomerically sensitive plasmon modes, having the novel property of exhibiting a chiral geometry themselves in relation with the handedness of the material. These results open new frontiers in studying chirality.

Original language	English
Pages (from-to)	3945-3948
Number of pages	4
Journal	Nano Letters
Volume	9
Issue number	11
DOIs	https://doi.org/10.1021/nl9021623
Publication status	Published - 11 Dec 2009

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title = "Plasmonic ratchet wheels: Switching circular dichroism by arranging chiral nanostructures",

abstract = "We demonstrate circular dichrolsm (CD) in the second harmonic generation (SHG) signal from chiral assemblies of G-shaped nanostructures made of gold. The arrangement of the G shapes is crucial since upon reordering them the SHG-CD effect disappears. Microscopy reveals SHG {"}hotspots{"} assemblies, which originate in enantiomerically sensitive plasmon modes, having the novel property of exhibiting a chiral geometry themselves in relation with the handedness of the material. These results open new frontiers in studying chirality.",

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T2 - Switching circular dichroism by arranging chiral nanostructures

AU - Valev, V. K.

AU - Smisdom, N.

AU - Silhanek, A. V.

AU - De Clercq, B.

AU - Gillijns, W.

AU - Ameloot, M.

AU - Moshchalkov, V. V.

AU - Verbiest, T.

PY - 2009/12/11

Y1 - 2009/12/11

N2 - We demonstrate circular dichrolsm (CD) in the second harmonic generation (SHG) signal from chiral assemblies of G-shaped nanostructures made of gold. The arrangement of the G shapes is crucial since upon reordering them the SHG-CD effect disappears. Microscopy reveals SHG "hotspots" assemblies, which originate in enantiomerically sensitive plasmon modes, having the novel property of exhibiting a chiral geometry themselves in relation with the handedness of the material. These results open new frontiers in studying chirality.

AB - We demonstrate circular dichrolsm (CD) in the second harmonic generation (SHG) signal from chiral assemblies of G-shaped nanostructures made of gold. The arrangement of the G shapes is crucial since upon reordering them the SHG-CD effect disappears. Microscopy reveals SHG "hotspots" assemblies, which originate in enantiomerically sensitive plasmon modes, having the novel property of exhibiting a chiral geometry themselves in relation with the handedness of the material. These results open new frontiers in studying chirality.

UR - https://www.scopus.com/pages/publications/72849136352

UR - http://dx.doi.org/10.1021/nl9021623

U2 - 10.1021/nl9021623

DO - 10.1021/nl9021623

M3 - Article

AN - SCOPUS:72849136352

SN - 1530-6984

VL - 9

SP - 3945

EP - 3948

JO - Nano Letters

JF - Nano Letters

IS - 11

ER -

Plasmonic ratchet wheels: Switching circular dichroism by arranging chiral nanostructures

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