Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber
For an electron-electron collision with characteristic scale length larger than the relative gyro-radius of the two colliding electrons, when the initial relative parallel kinetic energy cannot surmount the Coulomb repulsive potential, reflection will occur with interchange of the parallel velocitie...
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| Format: | Article |
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IOP Publishing
2019
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| _version_ | 1825721958070747136 |
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| author | Zulkipli, N.F. Batumalay, Malathy Samsamnun, F.S.M. Mahyuddin, Mohamad Badrol Hisyam Hanafi, Effariza Izam, T.F.T.M.N. Abdul Khudus, Muhammad Imran Mustafa Harun, Sulaiman Wadi |
| author_facet | Zulkipli, N.F. Batumalay, Malathy Samsamnun, F.S.M. Mahyuddin, Mohamad Badrol Hisyam Hanafi, Effariza Izam, T.F.T.M.N. Abdul Khudus, Muhammad Imran Mustafa Harun, Sulaiman Wadi |
| author_sort | Zulkipli, N.F. |
| collection | UM |
| description | For an electron-electron collision with characteristic scale length larger than the relative gyro-radius of the two colliding electrons, when the initial relative parallel kinetic energy cannot surmount the Coulomb repulsive potential, reflection will occur with interchange of the parallel velocities of the two electrons after the collision. The Fokker-Planck approach is employed to derive the electron collision term R describing parallel velocity scattering due to the reflections for a magnetized plasma where the average electron gyro-radius is much smaller than the Debye length but much larger than the Landau length. The electron parallel velocity friction and diffusion coefficients due to the reflections are evaluated, which are found not to depend on the electron perpendicular velocity. By studying the temporal evolution of the quantity due to R, it is found that R eventually makes the system relax to a state in which the electron parallel velocity distribution is decoupled from the perpendicular velocity distribution. |
| first_indexed | 2024-03-06T05:58:17Z |
| format | Article |
| id | um.eprints-22884 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:58:17Z |
| publishDate | 2019 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | um.eprints-228842019-10-31T03:16:59Z http://eprints.um.edu.my/22884/ Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber Zulkipli, N.F. Batumalay, Malathy Samsamnun, F.S.M. Mahyuddin, Mohamad Badrol Hisyam Hanafi, Effariza Izam, T.F.T.M.N. Abdul Khudus, Muhammad Imran Mustafa Harun, Sulaiman Wadi Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering For an electron-electron collision with characteristic scale length larger than the relative gyro-radius of the two colliding electrons, when the initial relative parallel kinetic energy cannot surmount the Coulomb repulsive potential, reflection will occur with interchange of the parallel velocities of the two electrons after the collision. The Fokker-Planck approach is employed to derive the electron collision term R describing parallel velocity scattering due to the reflections for a magnetized plasma where the average electron gyro-radius is much smaller than the Debye length but much larger than the Landau length. The electron parallel velocity friction and diffusion coefficients due to the reflections are evaluated, which are found not to depend on the electron perpendicular velocity. By studying the temporal evolution of the quantity due to R, it is found that R eventually makes the system relax to a state in which the electron parallel velocity distribution is decoupled from the perpendicular velocity distribution. IOP Publishing 2019 Article PeerReviewed Zulkipli, N.F. and Batumalay, Malathy and Samsamnun, F.S.M. and Mahyuddin, Mohamad Badrol Hisyam and Hanafi, Effariza and Izam, T.F.T.M.N. and Abdul Khudus, Muhammad Imran Mustafa and Harun, Sulaiman Wadi (2019) Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber. Chinese Physics Letters, 36 (7). 074203. ISSN 0256-307X, DOI https://doi.org/10.1088/0256-307X/36/7/074203 <https://doi.org/10.1088/0256-307X/36/7/074203>. https://doi.org/10.1088/0256-307X/36/7/074203 doi:10.1088/0256-307X/36/7/074203 |
| spellingShingle | Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering Zulkipli, N.F. Batumalay, Malathy Samsamnun, F.S.M. Mahyuddin, Mohamad Badrol Hisyam Hanafi, Effariza Izam, T.F.T.M.N. Abdul Khudus, Muhammad Imran Mustafa Harun, Sulaiman Wadi Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber |
| title | Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber |
| title_full | Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber |
| title_fullStr | Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber |
| title_full_unstemmed | Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber |
| title_short | Nanosecond Pulses Generation with Samarium Oxide Film Saturable Absorber |
| title_sort | nanosecond pulses generation with samarium oxide film saturable absorber |
| topic | Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering |
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