Bulk and surface polaritons in semi-infinite superlattices in a magnetic field: Dispersion relations, optical reflection, and attenuated total reflection

1991 ◽  
Vol 43 (8) ◽  
pp. 6554-6568 ◽  
Author(s):  
B. L. Johnson ◽  
R. E. Camley
1995 ◽  
Vol 75 (20) ◽  
pp. 3756-3759 ◽  
Author(s):  
M. R. F. Jensen ◽  
T. J. Parker ◽  
Kamsul Abraha ◽  
D. R. Tilley

2014 ◽  
Vol 60 (2) ◽  
pp. 1-7
Author(s):  
Michal Lesňák ◽  
František Staněk ◽  
Jaromír Pištora ◽  
Jan Procházka

Abstract The paper is focused on the study of two-dimensional magnetic field distribution used for an analysis of samples containing magnetically active films by means of the Attenuated Total Reflection (ATR) method. The design of a proposed electromagnet and the magnetic field model computation are presented together with the results obtained from magnetic field distribution measurement. The ATR method can provide information about a thin film thickness, refractive index, and attenuation in addition to the perfunctory coupling of an optical wave into and off a waveguide [1, 2]. The prism coupling conditions are determined for magnetic structures with induced anisotropy. The prism - a film coupler is located in the central cavity of a magnetic yoke. By current switching in the coils, we can change the amplitude and magnetic field direction in order to modulate the induced anisotropy in a thin film with magnetic ordering. By the in-plane modulation of the magnetization direction in the samples, we can change the rotation and elasticity of outgoing light.


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