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Photonic Crystals That Can Be Addressed with an External Magnetic Field
Author(s) -
Gates B.,
Xia Y.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200111)13:21<1605::aid-adma1605>3.0.co;2-9
Subject(s) - materials science , photonic crystal , magnetic field , polystyrene , diffraction , photonics , wavelength , colloidal crystal , photonic metamaterial , optics , spheres , calcination , micrometer , ray , magnetic nanoparticles , nanotechnology , condensed matter physics , nanoparticle , optoelectronics , colloid , polymer , physics , composite material , biochemistry , chemistry , catalysis , quantum mechanics , astronomy
Photonic crystals whose properties can be manipulated with an external magnetic field have been made by self‐assembly of magnetic nanoparticles around larger polystyrene spheres into opaline, long‐range‐ordered lattices (see Figure for details of a sample after calcination). Optical properties of such crystals (e.g., wavelength of diffracted light) can be tuned by magnetically rotating the crystals relative to the incident light (see also images on the front cover).