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Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaNstructures at 110 K temperature
We experimentally observed a terahertz (THz) radiation of electrically driven 2D electron gas(2DEG)plasmons inAlGaN/AlN/GaN structures at T = 110 K. The grating with a period of 1.0 μm and afilling factor of 0.35 was used to couple electromagnetic radiation out from theplasmonic sampleexcited in a p...
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| Published in: | Applied physics letters 2017-05, Vol.110 (20) |
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| container_title | Applied physics letters |
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| creator | Jakštas, V Grigelionis, I Janonis, V Valušis, G Kašalynas, I Prystawko, P Leszczyński, M |
| description | We experimentally observed a terahertz (THz) radiation of electrically driven 2D electron gas(2DEG)plasmons inAlGaN/AlN/GaN structures at T = 110 K. The grating with a period of 1.0 μm and afilling factor of 0.35 was used to couple electromagnetic radiation out from theplasmonic sampleexcited in a pulsed regime. The peak power radiated from ungated 2DEGplasmons at afrequency of 5.0 THz under an electric field of 450 V/cm was up to 940 nW. The intensity of theradiationwas sufficient to measurespectra with aconventional far-infrared Fourier transform spectrometer. The analysis of the datarevealed that the 2DEGplasmonradiationwas superimposed with the black-body radiation of the sample and electroluminescence of theimpurities. The strategy to reach higher powers of THz emission for practical applicationsis discussed. |
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The grating with a period of 1.0 μm and afilling factor of 0.35 was used to couple electromagnetic radiation out from theplasmonic sampleexcited in a pulsed regime. The peak power radiated from ungated 2DEGplasmons at afrequency of 5.0 THz under an electric field of 450 V/cm was up to 940 nW. The intensity of theradiationwas sufficient to measurespectra with aconventional far-infrared Fourier transform spectrometer. The analysis of the datarevealed that the 2DEGplasmonradiationwas superimposed with the black-body radiation of the sample and electroluminescence of theimpurities. The strategy to reach higher powers of THz emission for practical applicationsis discussed.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Aluminum gallium nitrides ; Applied physics ; Black body radiation ; Electroluminescence ; Electromagnetic radiation ; Electron gas ; Far infrared radiation ; Fourier transform spectrometers ; Fourier transforms ; Gallium nitrides ; Infrared analysis ; Infrared spectrometers ; Plasmons</subject><ispartof>Applied physics letters, 2017-05, Vol.110 (20)</ispartof><rights>2017 Author(s). 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The grating with a period of 1.0 μm and afilling factor of 0.35 was used to couple electromagnetic radiation out from theplasmonic sampleexcited in a pulsed regime. The peak power radiated from ungated 2DEGplasmons at afrequency of 5.0 THz under an electric field of 450 V/cm was up to 940 nW. The intensity of theradiationwas sufficient to measurespectra with aconventional far-infrared Fourier transform spectrometer. The analysis of the datarevealed that the 2DEGplasmonradiationwas superimposed with the black-body radiation of the sample and electroluminescence of theimpurities. The strategy to reach higher powers of THz emission for practical applicationsis discussed.</description><subject>Aluminum gallium nitrides</subject><subject>Applied physics</subject><subject>Black body radiation</subject><subject>Electroluminescence</subject><subject>Electromagnetic radiation</subject><subject>Electron gas</subject><subject>Far infrared radiation</subject><subject>Fourier transform spectrometers</subject><subject>Fourier transforms</subject><subject>Gallium nitrides</subject><subject>Infrared analysis</subject><subject>Infrared spectrometers</subject><subject>Plasmons</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqNTksKwjAUDKJg_dzhgetiPn6XolVBcOW-hJpiJCb1JRV05dZrehIjeAAXwzAfhmmQhNHpNBWMzZokoZSKdDIfszbpeH-OcsyFSEiZGVUE1IU05g5H1DdlISiUJ4XhASiPWgbtLLgS-CrbQGWkvzjrQVtYmI3cDyN8wLoINSoPMgBj9P187eLMpYpLX79HWqU0XvV_3CWDdXZYbtMK3bVWPuRnV6ONUc4ZH41mXMR7_7U-0hBIRQ</recordid><startdate>20170515</startdate><enddate>20170515</enddate><creator>Jakštas, V</creator><creator>Grigelionis, I</creator><creator>Janonis, V</creator><creator>Valušis, G</creator><creator>Kašalynas, I</creator><creator>Prystawko, P</creator><creator>Leszczyński, M</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20170515</creationdate><title>Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaNstructures at 110 K temperature</title><author>Jakštas, V ; Grigelionis, I ; Janonis, V ; Valušis, G ; Kašalynas, I ; Prystawko, P ; Leszczyński, M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_21244823233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Aluminum gallium nitrides</topic><topic>Applied physics</topic><topic>Black body radiation</topic><topic>Electroluminescence</topic><topic>Electromagnetic radiation</topic><topic>Electron gas</topic><topic>Far infrared radiation</topic><topic>Fourier transform spectrometers</topic><topic>Fourier transforms</topic><topic>Gallium nitrides</topic><topic>Infrared analysis</topic><topic>Infrared spectrometers</topic><topic>Plasmons</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jakštas, V</creatorcontrib><creatorcontrib>Grigelionis, I</creatorcontrib><creatorcontrib>Janonis, V</creatorcontrib><creatorcontrib>Valušis, G</creatorcontrib><creatorcontrib>Kašalynas, I</creatorcontrib><creatorcontrib>Prystawko, P</creatorcontrib><creatorcontrib>Leszczyński, M</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jakštas, V</au><au>Grigelionis, I</au><au>Janonis, V</au><au>Valušis, G</au><au>Kašalynas, I</au><au>Prystawko, P</au><au>Leszczyński, M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaNstructures at 110 K temperature</atitle><jtitle>Applied physics letters</jtitle><date>2017-05-15</date><risdate>2017</risdate><volume>110</volume><issue>20</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>We experimentally observed a terahertz (THz) radiation of electrically driven 2D electron gas(2DEG)plasmons inAlGaN/AlN/GaN structures at T = 110 K. The grating with a period of 1.0 μm and afilling factor of 0.35 was used to couple electromagnetic radiation out from theplasmonic sampleexcited in a pulsed regime. The peak power radiated from ungated 2DEGplasmons at afrequency of 5.0 THz under an electric field of 450 V/cm was up to 940 nW. The intensity of theradiationwas sufficient to measurespectra with aconventional far-infrared Fourier transform spectrometer. The analysis of the datarevealed that the 2DEGplasmonradiationwas superimposed with the black-body radiation of the sample and electroluminescence of theimpurities. The strategy to reach higher powers of THz emission for practical applicationsis discussed.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub></addata></record> |
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| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2017-05, Vol.110 (20) |
| issn | 0003-6951 1077-3118 |
| language | eng |
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| source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); AIP - American Institute of Physics |
| subjects | Aluminum gallium nitrides Applied physics Black body radiation Electroluminescence Electromagnetic radiation Electron gas Far infrared radiation Fourier transform spectrometers Fourier transforms Gallium nitrides Infrared analysis Infrared spectrometers Plasmons |
| title | Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaNstructures at 110 K temperature |
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