T Hamon et al 2006 J. Phys. D: Appl. Phys. 39 1012 doi:10.1088/0022-3727/39/6/003
Investigation of a one-dimensional magnetophotonic crystal for the study of ultrathin magnetic layer
T Hamon, S Buil, E Popova, P R Dahoo and N Keller
Show affiliationsWe investigated one dimensional magnetophotonic crystals consisting of a cavity containing a magnetic layer between two Bragg reflectors. This structure can be made very efficient to obtain a localized mode with enhanced Faraday rotation. In this paper, the parameters of the magnetic layer (thickness and position within the cavity) were systematically varied in order to find theoretically the most efficient structure according to a figure-of-merit. A significant enhancement of the Faraday rotation, θF, by a factor of twelve is found compared with a single cobalt layer. Our calculations show the possibility of using this huge enhancement for ultrathin magnetic layer studies. The experimental spectrum of the ellipsometric parameter tan(Ψ) agrees with the calculated results.
- PACS
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42.70.Qs Photonic bandgap materials
78.20.Ls Magnetooptical effects
75.70.Ak Magnetic properties of monolayers and thin films
61.72.Nn Stacking faults and other planar or extended defects
- Subjects
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Condensed matter: electrical, magnetic and optical
Surfaces, interfaces and thin films
- Dates
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Issue 6 (21 March 2006)
Received 19 October 2005, in final form 13 January 2006
Published 3 March 2006
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Investigation of a one-dimensional magnetophotonic crystal for the study of ultrathin magnetic layer
T Hamon et al 2006 J. Phys. D: Appl. Phys. 39 1012
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