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Magnetic field modulation of photonic bandgap on FeCo/NiO half-shell array |
Optics Letters, Vol. 36, Issue 13, pp. 2563-2565 (2011)
http://dx.doi.org/10.1364/OL.36.002563
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Abstract
FeCo/NiO half-shell arrays were fabricated based on the periodic monolayer polystyrene spheres. The two- dimensional magnetic periodic arrays form well-defined photonic crystals with pronounced stop bands. Quite interestingly, it is found that the stop bands can be tuned by an external magnetic field. The underlying mechanism is attributed to the controllable dielectric constant of the magnetic FeCo film under an applied magnetic field. The results shown here may open up an avenue for magnetically tunable photonic crystal stop bands, which may be useful for the creation of new magneto-optical devices.
© 2011 Optical Society of America
OCIS Codes
(160.3900) Materials : Metals
(160.4760) Materials : Optical properties
(300.1030) Spectroscopy : Absorption
(160.5298) Materials : Photonic crystals
ToC Category:
Materials
History
Original Manuscript: March 9, 2011
Revised Manuscript: June 7, 2011
Manuscript Accepted: June 7, 2011
Published: June 30, 2011
Citation
Ju-Ying Chen, Yu-Chuan Chen, Chih-Ming Wei, and Yang-Fang Chen, "Magnetic field modulation of photonic bandgap on FeCo/NiO half-shell array," Opt. Lett. 36, 2563-2565 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-13-2563
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