Abstract

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).

Keywords

Materials sciencePhotonic crystalMagnetic fieldPolystyreneDiffractionPhotonicsWavelengthColloidal crystalPhotonic metamaterialOpticsSPHERESCalcinationMicrometerRayMagnetic nanoparticlesNanotechnologyCondensed matter physicsNanoparticleOptoelectronicsColloidPolymerPhysicsComposite material

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Publication Info

Year
2001
Type
article
Volume
13
Issue
21
Pages
1605-1608
Citations
95
Access
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Byron D. Gates, Younan Xia (2001). Photonic Crystals That Can Be Addressed with an External Magnetic Field. Advanced Materials , 13 (21) , 1605-1608. https://doi.org/10.1002/1521-4095(200111)13:21<1605::aid-adma1605>3.0.co;2-9

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DOI
10.1002/1521-4095(200111)13:21<1605::aid-adma1605>3.0.co;2-9