Proceedings ArticleDOI
Optical Mode Conversion In Magnetic Garnet Films
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TLDR
In this paper, a gallium-substituted film of yttrium iron garnet was measured for different orientations of the magnetization and a modulation efficiency of 6% at a frequency of 1 GHz was achieved.Abstract:
Magnetic garnet films can be used as optical waveguides in the near infrared region. Light propagates in the waveguides as TE or TM modes. Due to the linear and circular magnetic birefringences these modes are coupled depending on the direction of the magnetization with respect to the direction of mode propagation. The efficiency of the mode conversion caused by the coupling is calculated. If the ferrimagnetic resonance is excited in the waveguide, a dynamical TE-TM mode conversion and thus a modulation of the light is induced. The spectrum of the modulated light contains besides the fundamental frequency higher harmonics. For a gallium-substituted film of yttrium iron garnet the dynamical mode conversion is measured for different orientations of the magnetization. A modulation efficiency of 6% at a frequency of 1 GHz is achieved. The experimental results are in qualitative agreement with calculations.read more
Citations
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Journal ArticleDOI
Applications of magnetic garnet films in integrated optics
TL;DR: In this paper, a novel type of optical waveguide isolator is proposed, which relies only on the TM/sub 0/ mode propagating in a strip waveguide which is divided by a compensation wall.
Journal ArticleDOI
Нелинейная регулярная и стохастическая динамика намагниченности в тонкопленочных структурах
Д.И. Семенцов,А.М. Шутый +1 more
Journal ArticleDOI
Nonlinearities in the ferrimagnetic resonance in epitaxial garnet films
TL;DR: In this article, the ferrimagnetic resonance of magnetic garnet films has been measured at foldover and instability conditions, and the resonance is excited locally within a region of about 50 μm diameter.
Journal ArticleDOI
Wideband optical modulation via the magneto-optic interaction in a bismuth-lutetium-iron garnet film
Anil Prabhakar,Daniel D. Stancil +1 more
TL;DR: In this article, an optical modulation with a bandwidth of about 3 GHz centered at 5.75 GHz was observed in a thin film of [BiLu]3Fe5O12 using magneto-optical interaction.
Journal ArticleDOI
Regular and chaotic dynamics of magnetization precession in ferrite–garnet films
TL;DR: By numerically solving equations of motion and constructing the spectrum of Lyapunov exponents, nonlinear dynamics of uniformly precessing magnetization in thin film structures with perpendicular magnetic bias is investigated over a wide frequency range of the alternating field.
References
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Journal ArticleDOI
Normal‐mode analysis of anisotropic and gyrotropic thin‐film waveguides for integrated optics
TL;DR: In this article, the Rayleigh-Ritz variational technique is applied to thin-film optical waveguides using anisotropic and gyrotropic materials, which may play an important role in the field of integrated optics.
Journal ArticleDOI
Dynamical conversion of optical modes in garnet films induced by ferrimagnetic resonance
TL;DR: In this article, it was demonstrated that ferrimagnetic resonance can be applied to induce a dynamical conversion of optical modes in a magnetic garnet film, and the fundamental and first-harmonic Fourier components of the converted mode were measured as a function of frequency and bias field.
Journal ArticleDOI
Ferrimagnetic resonance in garnet films at large precession angles
TL;DR: In this paper, the precession angle of the magnetization is derived from the measured change of Faraday rotation of linearly polarized light passing through the films, and conditions to achieve large precession angles are given.
Journal ArticleDOI
Growth of Yttrium iron garnet multi-layers by liquid phase epitaxy for single mode magneto-optic waveguides
TL;DR: In this article, the growth of multilayers of substituted yttrium iron garnet on non-magnetic garnet substrates is described, and the growth conditions, compositions, lattice mismatch and magneto-optic properties of the layers are described.