Giant amplification in degenerate band edge slow-wave structures interacting with an electron beam
We propose a new amplification regime based on a synchronous operation of four degenerate electromagnetic (EM) modes in a slow-wave structure and the electron beam, referred to as super synchronization. These four EM modes arise in a Fabry-Pérot cavity when degenerate band edge (DBE) condition is sa...
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| Veröffentlicht in: | Physics of plasmas 2016-03, Vol.23 (3) |
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| container_title | Physics of plasmas |
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| creator | Othman, Mohamed A. K. Veysi, Mehdi Figotin, Alexander Capolino, Filippo |
| description | We propose a new amplification regime based on a synchronous operation of four degenerate electromagnetic (EM) modes in a slow-wave structure and the electron beam, referred to as super synchronization. These four EM modes arise in a Fabry-Pérot cavity when degenerate band edge (DBE) condition is satisfied. The modes interact constructively with the electron beam resulting in superior amplification. In particular, much larger gains are achieved for smaller beam currents compared to conventional structures based on synchronization with only a single EM mode. We demonstrate giant gain scaling with respect to the length of the slow-wave structure compared to conventional Pierce type single mode traveling wave tube amplifiers. We construct a coupled transmission line model for a loaded waveguide slow-wave structure exhibiting a DBE, and investigate the phenomenon of giant gain via super synchronization using the Pierce model generalized to multimode interaction. |
| doi_str_mv | 10.1063/1.4942791 |
| format | Article |
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K.</creatorcontrib><creatorcontrib>Veysi, Mehdi</creatorcontrib><creatorcontrib>Figotin, Alexander</creatorcontrib><creatorcontrib>Capolino, Filippo</creatorcontrib><title>Giant amplification in degenerate band edge slow-wave structures interacting with an electron beam</title><title>Physics of plasmas</title><description>We propose a new amplification regime based on a synchronous operation of four degenerate electromagnetic (EM) modes in a slow-wave structure and the electron beam, referred to as super synchronization. These four EM modes arise in a Fabry-Pérot cavity when degenerate band edge (DBE) condition is satisfied. The modes interact constructively with the electron beam resulting in superior amplification. In particular, much larger gains are achieved for smaller beam currents compared to conventional structures based on synchronization with only a single EM mode. We demonstrate giant gain scaling with respect to the length of the slow-wave structure compared to conventional Pierce type single mode traveling wave tube amplifiers. We construct a coupled transmission line model for a loaded waveguide slow-wave structure exhibiting a DBE, and investigate the phenomenon of giant gain via super synchronization using the Pierce model generalized to multimode interaction.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>Amplification</subject><subject>AMPLIFIERS</subject><subject>BEAM CURRENTS</subject><subject>COMPARATIVE EVALUATIONS</subject><subject>Construction</subject><subject>ELECTRON BEAMS</subject><subject>ELECTRONS</subject><subject>FABRY-PEROT INTERFEROMETER</subject><subject>GAIN</subject><subject>INTERACTIONS</subject><subject>LENGTH</subject><subject>Plasma</subject><subject>Plasma physics</subject><subject>SCALING</subject><subject>Synchronism</subject><subject>SYNCHRONIZATION</subject><subject>Transmission lines</subject><subject>Traveling wave tubes</subject><subject>Traveling waves</subject><subject>TRAVELLING WAVE TUBES</subject><subject>TRAVELLING WAVES</subject><subject>Waveform analysis</subject><subject>WAVEGUIDES</subject><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp90EFLwzAUB_AiCs7pwW8Q8KTQmaRpmxxl6BQGXhS8hTR53TK2tCbZht_ezA13EDzlHX7838s_y64JHhFcFfdkxASjtSAn2YBgLvK6qtnpbq5xXlXs4zy7CGGBMWZVyQdZM7HKRaRW_dK2VqtoO4esQwZm4MCrCKhRziAwM0Bh2W3zrdqkKfq1jmsPIeGYnI7WzdDWxjlSDsESdPQpqQG1uszOWrUMcHV4h9n70-Pb-Dmfvk5exg_TXBcCx9ywVkAjaKVB1aSmTDWqNa0osGgEN0QwYMRwyhrDiUp_5KQVFSvLghOhqSmG2c0-twvRyqBtBD3XnXPpFklpKQSu6qPqffe5hhDlolt7lw6TlFDCy0IIntTtXmnfheChlb23K-W_JMFyV7Qk8lB0snd7u1v5U-Av3nT-CGVv2v_w3-Rv0R-MLg</recordid><startdate>20160301</startdate><enddate>20160301</enddate><creator>Othman, Mohamed A. 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K.</creatorcontrib><creatorcontrib>Veysi, Mehdi</creatorcontrib><creatorcontrib>Figotin, Alexander</creatorcontrib><creatorcontrib>Capolino, Filippo</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Physics of plasmas</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Othman, Mohamed A. K.</au><au>Veysi, Mehdi</au><au>Figotin, Alexander</au><au>Capolino, Filippo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Giant amplification in degenerate band edge slow-wave structures interacting with an electron beam</atitle><jtitle>Physics of plasmas</jtitle><date>2016-03-01</date><risdate>2016</risdate><volume>23</volume><issue>3</issue><issn>1070-664X</issn><eissn>1089-7674</eissn><coden>PHPAEN</coden><abstract>We propose a new amplification regime based on a synchronous operation of four degenerate electromagnetic (EM) modes in a slow-wave structure and the electron beam, referred to as super synchronization. These four EM modes arise in a Fabry-Pérot cavity when degenerate band edge (DBE) condition is satisfied. The modes interact constructively with the electron beam resulting in superior amplification. In particular, much larger gains are achieved for smaller beam currents compared to conventional structures based on synchronization with only a single EM mode. We demonstrate giant gain scaling with respect to the length of the slow-wave structure compared to conventional Pierce type single mode traveling wave tube amplifiers. We construct a coupled transmission line model for a loaded waveguide slow-wave structure exhibiting a DBE, and investigate the phenomenon of giant gain via super synchronization using the Pierce model generalized to multimode interaction.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4942791</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Physics of plasmas, 2016-03, Vol.23 (3) |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY Amplification AMPLIFIERS BEAM CURRENTS COMPARATIVE EVALUATIONS Construction ELECTRON BEAMS ELECTRONS FABRY-PEROT INTERFEROMETER GAIN INTERACTIONS LENGTH Plasma Plasma physics SCALING Synchronism SYNCHRONIZATION Transmission lines Traveling wave tubes Traveling waves TRAVELLING WAVE TUBES TRAVELLING WAVES Waveform analysis WAVEGUIDES |
| title | Giant amplification in degenerate band edge slow-wave structures interacting with an electron beam |
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