Generation of broadband terahertz radiation using a backward wave oscillator and pseudospark-sourced electron beam
This paper presents for the generation of a small size high current density pseudospark (PS) electron beam for a high frequency (0.2 THz) Backward Wave Oscillator (BWO) through a Doppler up-shift of the plasma frequency. An electron beam ∼1 mm diameter carrying a current of up to 10 A and current de...
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| Veröffentlicht in: | Applied physics letters 2015-09, Vol.107 (13) |
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| container_title | Applied physics letters |
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| creator | He, W. Zhang, L. Bowes, D. Yin, H. Ronald, K. Phelps, A. D. R. Cross, A. W. |
| description | This paper presents for the generation of a small size high current density pseudospark (PS) electron beam for a high frequency (0.2 THz) Backward Wave Oscillator (BWO) through a Doppler up-shift of the plasma frequency. An electron beam ∼1 mm diameter carrying a current of up to 10 A and current density of 108 A m−2, with a sweeping voltage of 42 to 25 kV and pulse duration of 25 ns, was generated from the PS discharge. This beam propagated through the rippled-wall slow wave structure of a BWO beam-wave interaction region in a plasma environment without the need for a guiding magnetic field. Plasma wave assisted beam-wave interaction resulted in broadband output over a frequency range of 186–202 GHz with a maximum power of 20 W. |
| doi_str_mv | 10.1063/1.4932099 |
| format | Article |
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D. R. ; Cross, A. W.</creator><creatorcontrib>He, W. ; Zhang, L. ; Bowes, D. ; Yin, H. ; Ronald, K. ; Phelps, A. D. R. ; Cross, A. W.</creatorcontrib><description>This paper presents for the generation of a small size high current density pseudospark (PS) electron beam for a high frequency (0.2 THz) Backward Wave Oscillator (BWO) through a Doppler up-shift of the plasma frequency. An electron beam ∼1 mm diameter carrying a current of up to 10 A and current density of 108 A m−2, with a sweeping voltage of 42 to 25 kV and pulse duration of 25 ns, was generated from the PS discharge. This beam propagated through the rippled-wall slow wave structure of a BWO beam-wave interaction region in a plasma environment without the need for a guiding magnetic field. Plasma wave assisted beam-wave interaction resulted in broadband output over a frequency range of 186–202 GHz with a maximum power of 20 W.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4932099</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Backward waves ; Broadband ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; CURRENT DENSITY ; CURRENTS ; ELECTRIC POTENTIAL ; ELECTRON BEAMS ; GHZ RANGE 100-1000 ; LANGMUIR FREQUENCY ; MAGNETIC FIELDS ; Maximum power ; OSCILLATORS ; Plasma ; PLASMA WAVES ; PULSES ; Wave interaction ; Wave propagation</subject><ispartof>Applied physics letters, 2015-09, Vol.107 (13)</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-d1549c95a5019642f1d44490627c897d5b3499b5657c9a52a68a1e86edc8c0b23</citedby><cites>FETCH-LOGICAL-c386t-d1549c95a5019642f1d44490627c897d5b3499b5657c9a52a68a1e86edc8c0b23</cites><orcidid>0000-0002-1100-1012</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22482181$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>He, W.</creatorcontrib><creatorcontrib>Zhang, L.</creatorcontrib><creatorcontrib>Bowes, D.</creatorcontrib><creatorcontrib>Yin, H.</creatorcontrib><creatorcontrib>Ronald, K.</creatorcontrib><creatorcontrib>Phelps, A. D. R.</creatorcontrib><creatorcontrib>Cross, A. W.</creatorcontrib><title>Generation of broadband terahertz radiation using a backward wave oscillator and pseudospark-sourced electron beam</title><title>Applied physics letters</title><description>This paper presents for the generation of a small size high current density pseudospark (PS) electron beam for a high frequency (0.2 THz) Backward Wave Oscillator (BWO) through a Doppler up-shift of the plasma frequency. An electron beam ∼1 mm diameter carrying a current of up to 10 A and current density of 108 A m−2, with a sweeping voltage of 42 to 25 kV and pulse duration of 25 ns, was generated from the PS discharge. This beam propagated through the rippled-wall slow wave structure of a BWO beam-wave interaction region in a plasma environment without the need for a guiding magnetic field. Plasma wave assisted beam-wave interaction resulted in broadband output over a frequency range of 186–202 GHz with a maximum power of 20 W.</description><subject>Applied physics</subject><subject>Backward waves</subject><subject>Broadband</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>CURRENT DENSITY</subject><subject>CURRENTS</subject><subject>ELECTRIC POTENTIAL</subject><subject>ELECTRON BEAMS</subject><subject>GHZ RANGE 100-1000</subject><subject>LANGMUIR FREQUENCY</subject><subject>MAGNETIC FIELDS</subject><subject>Maximum power</subject><subject>OSCILLATORS</subject><subject>Plasma</subject><subject>PLASMA WAVES</subject><subject>PULSES</subject><subject>Wave interaction</subject><subject>Wave propagation</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNpFkE1LAzEQhoMoWKsH_0HAk4et-dxNjlK0CgUveg6zSdZuu93UJGvRX--WFjwNMzzz8vAidEvJjJKSP9CZ0JwRrc_QhJKqKjil6hxNCCG8KLWkl-gqpfW4Ssb5BMWF732E3IYehwbXMYCroXc4j9eVj_kXR3DtERhS239iwDXYzR6iw3v49jgk23Yd5BDx4XGX_OBC2kHcFCkM0XqHfedtjmNC7WF7jS4a6JK_Oc0p-nh-ep-_FMu3xev8cVlYrspcOCqFtlqCJFSXgjXUCSE0KVllla6crLnQupalrKwGyaBUQL0qvbPKkprxKbo75oaUWzNKZm9XNvT96GIYE4pRRf-pXQxfg0_ZrEfpfhQzjDKuhGZKjNT9kbIxpBR9Y3ax3UL8MZSYQ_GGmlPx_A8y0XUt</recordid><startdate>20150928</startdate><enddate>20150928</enddate><creator>He, W.</creator><creator>Zhang, L.</creator><creator>Bowes, D.</creator><creator>Yin, H.</creator><creator>Ronald, K.</creator><creator>Phelps, A. D. R.</creator><creator>Cross, A. W.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-1100-1012</orcidid></search><sort><creationdate>20150928</creationdate><title>Generation of broadband terahertz radiation using a backward wave oscillator and pseudospark-sourced electron beam</title><author>He, W. ; Zhang, L. ; Bowes, D. ; Yin, H. ; Ronald, K. ; Phelps, A. D. R. ; Cross, A. W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-d1549c95a5019642f1d44490627c897d5b3499b5657c9a52a68a1e86edc8c0b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Applied physics</topic><topic>Backward waves</topic><topic>Broadband</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>CURRENT DENSITY</topic><topic>CURRENTS</topic><topic>ELECTRIC POTENTIAL</topic><topic>ELECTRON BEAMS</topic><topic>GHZ RANGE 100-1000</topic><topic>LANGMUIR FREQUENCY</topic><topic>MAGNETIC FIELDS</topic><topic>Maximum power</topic><topic>OSCILLATORS</topic><topic>Plasma</topic><topic>PLASMA WAVES</topic><topic>PULSES</topic><topic>Wave interaction</topic><topic>Wave propagation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>He, W.</creatorcontrib><creatorcontrib>Zhang, L.</creatorcontrib><creatorcontrib>Bowes, D.</creatorcontrib><creatorcontrib>Yin, H.</creatorcontrib><creatorcontrib>Ronald, K.</creatorcontrib><creatorcontrib>Phelps, A. 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W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Generation of broadband terahertz radiation using a backward wave oscillator and pseudospark-sourced electron beam</atitle><jtitle>Applied physics letters</jtitle><date>2015-09-28</date><risdate>2015</risdate><volume>107</volume><issue>13</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>This paper presents for the generation of a small size high current density pseudospark (PS) electron beam for a high frequency (0.2 THz) Backward Wave Oscillator (BWO) through a Doppler up-shift of the plasma frequency. An electron beam ∼1 mm diameter carrying a current of up to 10 A and current density of 108 A m−2, with a sweeping voltage of 42 to 25 kV and pulse duration of 25 ns, was generated from the PS discharge. This beam propagated through the rippled-wall slow wave structure of a BWO beam-wave interaction region in a plasma environment without the need for a guiding magnetic field. Plasma wave assisted beam-wave interaction resulted in broadband output over a frequency range of 186–202 GHz with a maximum power of 20 W.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4932099</doi><orcidid>https://orcid.org/0000-0002-1100-1012</orcidid><oa>free_for_read</oa></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Backward waves Broadband CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CURRENT DENSITY CURRENTS ELECTRIC POTENTIAL ELECTRON BEAMS GHZ RANGE 100-1000 LANGMUIR FREQUENCY MAGNETIC FIELDS Maximum power OSCILLATORS Plasma PLASMA WAVES PULSES Wave interaction Wave propagation |
| title | Generation of broadband terahertz radiation using a backward wave oscillator and pseudospark-sourced electron beam |
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