Journal Article

PUBDB-2024-06075

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Optical Properties of Metacrystals Based on Protein Nanocages

Junker, N. O. ; Lindenau, A. ; Rütten, M. ; Lach, M.Extern*EMBL* ; Nedilko, A. ; Chigrin, D. N. ; von Plessen, G. (Corresponding author) ; Beck, T. (Corresponding author)Extern*XFEL.EU*EMBL*

2023
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/adfm.202303260  doi:10.3204/PUBDB-2024-06075

Abstract: The optical properties of 3D metacrystals made of gold nanoparticles in protein nanocages are studied. These metacrystals have sizes of tens of micrometers and are of high structural and optical quality. Through microspectroscopy measurements and model calculations it is demonstrated that the metacrystals show plasmonic absorption in the green wavelength range and are largely transparent in the red and infrared ranges. By using empty nanocages as placeholders in the metacrystal lattice, it is possible to control how strongly the metamaterial absorbs. Measurements on a pyramidal metacrystal show that it deflects visible light. The deflection shows evidence for anomalous refraction at short wavelengths and normal refraction at long wavelengths. The refractive dispersion is ascribed to the optical dispersion relation of the plasmonic metamaterial.

Note: DFG EXC 2056–project ID 390715994.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. DFG project G:(GEPRIS)401323995 - Hochstrukturierte optische Materialien aus Proteincontainern und plasmonischen Nanopartikeln für die Manipulation von Licht auf der Nanoskala (401323995) (401323995)
3. DFG project G:(GEPRIS)390715994 - EXC 2056: CUI: Advanced Imaging of Matter (390715994) (390715994)

Experiment(s):

1. PETRA Beamline P62 (PETRA III)

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 15 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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