Superimposed coherent terahertz wave radiation from mono-energetically bunched multi-beam
Intense coherent radiation is obtained from multiple electron beams monochromatically bunched over the wide higher-order-mode (HOM) spectral band in the THz regime. The overmoded waveguide corrugated by dielectric-implanted staggered gratings superimposes evanescent waves emitted from the low energy...
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| Veröffentlicht in: | Physics of plasmas 2012-06, Vol.19 (6) |
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| creator | Shin, Young-Min |
| description | Intense coherent radiation is obtained from multiple electron beams monochromatically bunched over the wide higher-order-mode (HOM) spectral band in the THz regime. The overmoded waveguide corrugated by dielectric-implanted staggered gratings superimposes evanescent waves emitted from the low energy electron beams. The dispersion and transmission simulations of the three-beam slow wave structure show that the first two fundamental modes (TE10 and TE20) are considerably suppressed (∼−50 dB) below the multi-beam resonating mode (TE30) at the THz regime (0.8–1.24 THz). The theoretical calculations and particle-in-cell simulations show that with significantly higher interaction impedance and power growth rate radiation of the TE30 mode is ∼23 dBm and ∼50 dBm stronger than the TE10 and TE20 modes around 1 THz, respectively. This highly selective HOM multi-beam interaction has potential applications for power THz sources and high intensity accelerators. |
| doi_str_mv | 10.1063/1.4731695 |
| format | Article |
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(FNAL), Batavia, IL (United States)</creatorcontrib><description>Intense coherent radiation is obtained from multiple electron beams monochromatically bunched over the wide higher-order-mode (HOM) spectral band in the THz regime. The overmoded waveguide corrugated by dielectric-implanted staggered gratings superimposes evanescent waves emitted from the low energy electron beams. The dispersion and transmission simulations of the three-beam slow wave structure show that the first two fundamental modes (TE10 and TE20) are considerably suppressed (∼−50 dB) below the multi-beam resonating mode (TE30) at the THz regime (0.8–1.24 THz). The theoretical calculations and particle-in-cell simulations show that with significantly higher interaction impedance and power growth rate radiation of the TE30 mode is ∼23 dBm and ∼50 dBm stronger than the TE10 and TE20 modes around 1 THz, respectively. This highly selective HOM multi-beam interaction has potential applications for power THz sources and high intensity accelerators.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/1.4731695</identifier><language>eng</language><publisher>United States: American Institute of Physics (AIP)</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; dielectrics ; electron beams ; energy efficiency ; particle-in-cell method ; terahertz radiation</subject><ispartof>Physics of plasmas, 2012-06, Vol.19 (6)</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c256t-a256306cf6a15a661ce1e97fb5646e321fae5be2bc2534415e22e5946312c9593</citedby><cites>FETCH-LOGICAL-c256t-a256306cf6a15a661ce1e97fb5646e321fae5be2bc2534415e22e5946312c9593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27903,27904</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1235046$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Shin, Young-Min</creatorcontrib><creatorcontrib>Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)</creatorcontrib><title>Superimposed coherent terahertz wave radiation from mono-energetically bunched multi-beam</title><title>Physics of plasmas</title><description>Intense coherent radiation is obtained from multiple electron beams monochromatically bunched over the wide higher-order-mode (HOM) spectral band in the THz regime. The overmoded waveguide corrugated by dielectric-implanted staggered gratings superimposes evanescent waves emitted from the low energy electron beams. The dispersion and transmission simulations of the three-beam slow wave structure show that the first two fundamental modes (TE10 and TE20) are considerably suppressed (∼−50 dB) below the multi-beam resonating mode (TE30) at the THz regime (0.8–1.24 THz). The theoretical calculations and particle-in-cell simulations show that with significantly higher interaction impedance and power growth rate radiation of the TE30 mode is ∼23 dBm and ∼50 dBm stronger than the TE10 and TE20 modes around 1 THz, respectively. This highly selective HOM multi-beam interaction has potential applications for power THz sources and high intensity accelerators.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>dielectrics</subject><subject>electron beams</subject><subject>energy efficiency</subject><subject>particle-in-cell method</subject><subject>terahertz radiation</subject><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNotkE1LAzEYhIMoWKsH_0Hw5iE139s9SvELCh5U0FPIpu_ayG5SklSpv94Ue5mZw8PADEKXjM4Y1eKGzWQjmG7VEZowOm9Joxt5vM8NJVrL91N0lvMXpVRqNZ-gj5ftBpIfNzHDCru4hgSh4ALJ1lh-8Y_9BpzsytviY8B9iiMeY4gEAqRPKN7ZYdjhbhvcujaM26F40oEdz9FJb4cMFweforf7u9fFI1k-PzwtbpfEcaULsVUF1a7XlimrNXPAoG36TmmpQXDWW1Ad8K7iQkqmgHNQrdSCcdeqVkzR1X9vzMWb7HwBt3YxBHDFMC5UXVqh63_IpZhzgt5s6mibdoZRsz_OMHM4TvwBfHJgrQ</recordid><startdate>20120601</startdate><enddate>20120601</enddate><creator>Shin, Young-Min</creator><general>American Institute of Physics (AIP)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OIOZB</scope><scope>OTOTI</scope></search><sort><creationdate>20120601</creationdate><title>Superimposed coherent terahertz wave radiation from mono-energetically bunched multi-beam</title><author>Shin, Young-Min</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c256t-a256306cf6a15a661ce1e97fb5646e321fae5be2bc2534415e22e5946312c9593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>dielectrics</topic><topic>electron beams</topic><topic>energy efficiency</topic><topic>particle-in-cell method</topic><topic>terahertz radiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shin, Young-Min</creatorcontrib><creatorcontrib>Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Physics of plasmas</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shin, Young-Min</au><aucorp>Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Superimposed coherent terahertz wave radiation from mono-energetically bunched multi-beam</atitle><jtitle>Physics of plasmas</jtitle><date>2012-06-01</date><risdate>2012</risdate><volume>19</volume><issue>6</issue><issn>1070-664X</issn><eissn>1089-7674</eissn><abstract>Intense coherent radiation is obtained from multiple electron beams monochromatically bunched over the wide higher-order-mode (HOM) spectral band in the THz regime. The overmoded waveguide corrugated by dielectric-implanted staggered gratings superimposes evanescent waves emitted from the low energy electron beams. The dispersion and transmission simulations of the three-beam slow wave structure show that the first two fundamental modes (TE10 and TE20) are considerably suppressed (∼−50 dB) below the multi-beam resonating mode (TE30) at the THz regime (0.8–1.24 THz). The theoretical calculations and particle-in-cell simulations show that with significantly higher interaction impedance and power growth rate radiation of the TE30 mode is ∼23 dBm and ∼50 dBm stronger than the TE10 and TE20 modes around 1 THz, respectively. This highly selective HOM multi-beam interaction has potential applications for power THz sources and high intensity accelerators.</abstract><cop>United States</cop><pub>American Institute of Physics (AIP)</pub><doi>10.1063/1.4731695</doi><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY dielectrics electron beams energy efficiency particle-in-cell method terahertz radiation |
| title | Superimposed coherent terahertz wave radiation from mono-energetically bunched multi-beam |
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