Simulation of photoconductive antennas for terahertz radiation
Simulation of terahertz (THz) emission based on PC antennas imposes a challenge to couple the semiconductor carrier phenomena, optical transport and the THz energy transport. In this paper a Multi-physics simulation for coupling these phenomena using COMSOL Multi-physics 4.3b is introduced. The main...
- Autores:
-
Criollo, Carlos
Avila, Alba Graciela
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2015
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/67689
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/67689
http://bdigital.unal.edu.co/68718/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Multi-physics simulation
Photoconductive antennas
Semiconductor physics
Electromagnetics
Antena fotoconductora
simulación multi-física
electromagnetismo
física de semiconductores
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Criollo, Carlosaece2e04-89f4-4003-a607-4d073ac457c1300Avila, Alba Graciela1d05ea9e-9df8-4a59-98ba-343ab9fbd4e23002019-07-03T04:51:56Z2019-07-03T04:51:56Z2015-01-01ISSN: 2248-8723https://repositorio.unal.edu.co/handle/unal/67689http://bdigital.unal.edu.co/68718/Simulation of terahertz (THz) emission based on PC antennas imposes a challenge to couple the semiconductor carrier phenomena, optical transport and the THz energy transport. In this paper a Multi-physics simulation for coupling these phenomena using COMSOL Multi-physics 4.3b is introduced. The main parameters of THz photoconductive (PC) antenna as THz emitter have been reviewed and discussed. The results indicate the role of each parameter in the resulting photocurrent waveform and THz frequency: The radiated THz photocurrent waveform is determined by the photoconductive gap (the separation between the metallic electrodes), the incident laser illumination and the DC excitation voltage; while the THz frequency depends on the dipole length. The optimization of these parameters could enhance the emission. The simulations extend the advance of compact and cost-effective THz emitters.La emisión de Terahertz (THz) empleando antenas fotoconductoras representa un reto de simulación en la integración de los fenó-menos de transporte en semiconductores, de óptica y de transporte de energía por radiación THz. En el presente artículo se propone una simulación Multi-Física para integrar estos fenómenos utilizando COMSOL Multiphysics 4.3b. Los principales parámetros de las antenas fotoconductoras empleadas como emisores de THz son estudiados. Los resultados de la simulación demuestran cómo estos parámetros inciden en la fotocorriente generada y en la frecuencia de radiación THz: la abertura fotoconductora (la separación de los electrodos metálicos de la antena), la potencia promedio del láser incidente y el voltaje de polarización, determinan la forma de onda de la fotocorriente generada; mientras que la longitud del dipolo determina la frecuencia de radiación. La emisión de las antenas fotoconductoras puede mejorarse optimizando estos parámetros. Esta simulación es útil para el diseño e implementación de antenas fotoconductoras como emisores de THz de diseño compacto y bajo costo.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ingenieríahttps://revistas.unal.edu.co/index.php/ingeinv/article/view/45310Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e InvestigaciónIngeniería e InvestigaciónCriollo, Carlos and Avila, Alba Graciela (2015) Simulation of photoconductive antennas for terahertz radiation. Ingeniería e Investigación, 35 (1). pp. 60-64. ISSN 2248-872362 Ingeniería y operaciones afines / EngineeringMulti-physics simulationPhotoconductive antennasSemiconductor physicsElectromagneticsAntena fotoconductorasimulación multi-físicaelectromagnetismofísica de semiconductoresSimulation of photoconductive antennas for terahertz radiationArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL45310-244827-1-PB.pdfapplication/pdf561610https://repositorio.unal.edu.co/bitstream/unal/67689/1/45310-244827-1-PB.pdf0cc3eeaeaaa86ec020eff31d54b33c7aMD51THUMBNAIL45310-244827-1-PB.pdf.jpg45310-244827-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8907https://repositorio.unal.edu.co/bitstream/unal/67689/2/45310-244827-1-PB.pdf.jpg8a0548c6d8a9a677217796f7eb46b7a8MD52unal/67689oai:repositorio.unal.edu.co:unal/676892023-05-31 23:03:08.338Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
| dc.title.spa.fl_str_mv |
Simulation of photoconductive antennas for terahertz radiation |
| title |
Simulation of photoconductive antennas for terahertz radiation |
| spellingShingle |
Simulation of photoconductive antennas for terahertz radiation 62 Ingeniería y operaciones afines / Engineering Multi-physics simulation Photoconductive antennas Semiconductor physics Electromagnetics Antena fotoconductora simulación multi-física electromagnetismo física de semiconductores |
| title_short |
Simulation of photoconductive antennas for terahertz radiation |
| title_full |
Simulation of photoconductive antennas for terahertz radiation |
| title_fullStr |
Simulation of photoconductive antennas for terahertz radiation |
| title_full_unstemmed |
Simulation of photoconductive antennas for terahertz radiation |
| title_sort |
Simulation of photoconductive antennas for terahertz radiation |
| dc.creator.fl_str_mv |
Criollo, Carlos Avila, Alba Graciela |
| dc.contributor.author.spa.fl_str_mv |
Criollo, Carlos Avila, Alba Graciela |
| dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
| topic |
62 Ingeniería y operaciones afines / Engineering Multi-physics simulation Photoconductive antennas Semiconductor physics Electromagnetics Antena fotoconductora simulación multi-física electromagnetismo física de semiconductores |
| dc.subject.proposal.spa.fl_str_mv |
Multi-physics simulation Photoconductive antennas Semiconductor physics Electromagnetics Antena fotoconductora simulación multi-física electromagnetismo física de semiconductores |
| description |
Simulation of terahertz (THz) emission based on PC antennas imposes a challenge to couple the semiconductor carrier phenomena, optical transport and the THz energy transport. In this paper a Multi-physics simulation for coupling these phenomena using COMSOL Multi-physics 4.3b is introduced. The main parameters of THz photoconductive (PC) antenna as THz emitter have been reviewed and discussed. The results indicate the role of each parameter in the resulting photocurrent waveform and THz frequency: The radiated THz photocurrent waveform is determined by the photoconductive gap (the separation between the metallic electrodes), the incident laser illumination and the DC excitation voltage; while the THz frequency depends on the dipole length. The optimization of these parameters could enhance the emission. The simulations extend the advance of compact and cost-effective THz emitters. |
| publishDate |
2015 |
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2015-01-01 |
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2019-07-03T04:51:56Z |
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2019-07-03T04:51:56Z |
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Artículo de revista |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Text |
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publishedVersion |
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ISSN: 2248-8723 |
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https://repositorio.unal.edu.co/handle/unal/67689 |
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http://bdigital.unal.edu.co/68718/ |
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ISSN: 2248-8723 |
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https://repositorio.unal.edu.co/handle/unal/67689 http://bdigital.unal.edu.co/68718/ |
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spa |
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spa |
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https://revistas.unal.edu.co/index.php/ingeinv/article/view/45310 |
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Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e Investigación Ingeniería e Investigación |
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Criollo, Carlos and Avila, Alba Graciela (2015) Simulation of photoconductive antennas for terahertz radiation. Ingeniería e Investigación, 35 (1). pp. 60-64. ISSN 2248-8723 |
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Derechos reservados - Universidad Nacional de Colombia |
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Atribución-NoComercial 4.0 Internacional |
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info:eu-repo/semantics/openAccess |
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