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Your search keyword '"Hammami, Mouhamad"' showing total 11 results
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11 results on '"Hammami, Mouhamad"'

1. Experimental parameters, combined dynamics, and nonlinearity of a Magnonic-Opto-Electronic Oscillator (MOEO)

Author

Xiong, Yuzan, Zhang, Zhizhi, Li, Yi, Hammami, Mouhamad, Sklenar, Joseph, Alahmed, Laith, Li, Peng, Sebastian, Thomas, Qu, Hongwei, Hoffmann, Axel, Novosad, Valentine, and Zhang, Wei

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Optics
Abstract

We report the construction and characterization of a comprehensive magnonic-opto-electronic oscillator (MOEO) system based on 1550-nm photonics and yttirum iron garnet (YIG) magnonics. The system exhibits a rich and synergistic parameter space because of the ability to control individual photonic, electronic, and magnonic components. Taking advantage of the spin wave dispersion of YIG, the frequency self-generation as well as the related nonlinear processes become sensitive to the external magnetic field. Besides being known as a narrowband filter and a delay element, the YIG delayline possesses spin wave modes that can be controlled to mix with the optoelectronic modes to generate higher-order harmonic beating modes. With the high sensitivity and external tunability, the MOEO system may find usefulness in sensing applications in magnetism and spintronics beyond optoelectronics and photonics., Comment: 13 pages, 9 figures. Comments are welcome. [A more comprehensive version of the manuscript was submitted to Rev. Sci. Instrum.]

Published
2020
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2. Probing magnon-magnon coupling in exchange coupled Y$_3$Fe$_5$O$_{12}$/Permalloy bilayers with magneto-optical effects

Author

Xiong, Yuzan, Li, Yi, Hammami, Mouhamad, Bidthanapally, Rao, Sklenar, Joseph, Zhang, Xufeng, Qu, Hongwei, Srinivasan, Gopalan, Pearson, John, Hoffmann, Axel, Novosad, Valentine, and Zhang, Wei

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

We demonstrate the magnetically-induced transparency (MIT) effect in Y$_3$Fe$_5$O$_{12}$(YIG)/Permalloy(Py) coupled bilayers. The measurement is achieved via a heterodyne detection of the coupled magnetization dynamics using a single wavelength that probes the magneto-optical Kerr and Faraday effects of Py and YIG, respectively. Clear features of the MIT effect are evident from the deeply modulated ferromagnetic resonance of Py due to the perpendicular-standing-spin-wave of YIG. We develop a phenomenological model that nicely reproduces the experimental results including the induced amplitude and phase evolution caused by the magnon-magnon coupling. Our work offers a new route towards studying phase-resolved spin dynamics and hybrid magnonic systems., Comment: 16 pages, 3 figures

Published
2019

9. Detecting Phase-Resolved Magnetization Dynamics by Magneto-Optic Effects at 1550 nm Wavelength

Author

Xiong, Yuzan, primary, Li, Yi, additional, Bidthanapally, Rao, additional, Sklenar, Joseph, additional, Hammami, Mouhamad, additional, Hall, Sawyer, additional, Zhang, Xufeng, additional, Li, Peng, additional, Pearson, John E., additional, Sebastian, Thomas, additional, Srinivasan, Gopalan, additional, Hoffmann, Axel, additional, Qu, Hongwei, additional, Novosad, Valentine, additional, and Zhang, Wei, additional

Published
2021
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10. Probing magnon–magnon coupling in exchange coupled Y\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_3$$\end{document}3Fe\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_5$$\end{document}5O\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{12}$$\end{document}12/Permalloy bilayers with magneto-optical effects

Author

Xiong, Yuzan, Li, Yi, Hammami, Mouhamad, Bidthanapally, Rao, Sklenar, Joseph, Zhang, Xufeng, Qu, Hongwei, Srinivasan, Gopalan, Pearson, John, Hoffmann, Axel, Novosad, Valentine, and Zhang, Wei

Subjects
Surfaces, interfaces and thin films, Magnetic properties and materials, Spintronics, Article
Abstract

We demonstrate the magnetically-induced transparency (MIT) effect in Y\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_3$$\end{document}3Fe\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_5$$\end{document}5O\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{12}$$\end{document}12(YIG)/Permalloy (Py) coupled bilayers. The measurement is achieved via a heterodyne detection of the coupled magnetization dynamics using a single wavelength that probes the magneto-optical Kerr and Faraday effects of Py and YIG, respectively. Clear features of the MIT effect are evident from the deeply modulated ferromagnetic resonance of Py due to the perpendicular-standing-spin-wave of YIG. We develop a phenomenological model that nicely reproduces the experimental results including the induced amplitude and phase evolution caused by the magnon–magnon coupling. Our work offers a new route towards studying phase-resolved spin dynamics and hybrid magnonic systems.

Published
2020

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