Generation of electromagnetic radiation by a heat flow in He II
A new effect of electromagnetic radiation generated by heat flow in superfluid helium has been detected experimentally. The generating heat flow was produced using hydrodynamic thermal guns. Electromagnetic radiation was registered with a dielectric disk resonator in the interval 1.4-2.17K. The powe...
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| creator | Rybalko, A S Rubets, S P E Ya Rudavskii Tikhiy, V A Golovachenko, R Derkach, V N Tarapov, S I |
| description | A new effect of electromagnetic radiation generated by heat flow in superfluid helium has been detected experimentally. The generating heat flow was produced using hydrodynamic thermal guns. Electromagnetic radiation was registered with a dielectric disk resonator in the interval 1.4-2.17K. The power of the thermal gun heater varied within Q up to 1mW. A distinct signal of electromagnetic radiation was registered when the thermal gun was on and there was no signal at Q=0. The frequency of the generated electromagnetic radiation was measured with a Fabry-Perrot interferometer. It was about 180GHz at T=1.4K and decreased with a rising temperature practically following the temperature dependence of a roton gap. The detected signal was investigated as a function of the heat flow temperature, direction and power Q. The results obtained show that He II behaves as a two - level system in which the difference between the levels is equal to the roton energy. |
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The generating heat flow was produced using hydrodynamic thermal guns. Electromagnetic radiation was registered with a dielectric disk resonator in the interval 1.4-2.17K. The power of the thermal gun heater varied within Q up to 1mW. A distinct signal of electromagnetic radiation was registered when the thermal gun was on and there was no signal at Q=0. The frequency of the generated electromagnetic radiation was measured with a Fabry-Perrot interferometer. It was about 180GHz at T=1.4K and decreased with a rising temperature practically following the temperature dependence of a roton gap. The detected signal was investigated as a function of the heat flow temperature, direction and power Q. The results obtained show that He II behaves as a two - level system in which the difference between the levels is equal to the roton energy.</description><identifier>EISSN: 2331-8422</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Electromagnetic radiation ; Fluids ; Heat ; Heat transfer ; Heat transmission ; Helium ; Superfluidity ; Temperature dependence</subject><ispartof>arXiv.org, 2008-11</ispartof><rights>2008. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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The results obtained show that He II behaves as a two - level system in which the difference between the levels is equal to the roton energy.</description><subject>Electromagnetic radiation</subject><subject>Fluids</subject><subject>Heat</subject><subject>Heat transfer</subject><subject>Heat transmission</subject><subject>Helium</subject><subject>Superfluidity</subject><subject>Temperature dependence</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNyrEKwjAUQNEgCBbtPzxwLsTEWDM5iNru7uVZXzSlJpqkiH-voB_gdIdzRywTUi6K9VKICctj7DjnYlUKpWTGNgdyFDBZ78AboJ7aFPwNL46SbSHg2X7x9AKEK2EC0_snWAcVQV3P2NhgHyn_dcrm-91xWxX34B8DxdR0fgjuQ43gmqtSaqXlf9cbs2M35A</recordid><startdate>20081120</startdate><enddate>20081120</enddate><creator>Rybalko, A S</creator><creator>Rubets, S P</creator><creator>E Ya Rudavskii</creator><creator>Tikhiy, V A</creator><creator>Golovachenko, R</creator><creator>Derkach, V N</creator><creator>Tarapov, S I</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20081120</creationdate><title>Generation of electromagnetic radiation by a heat flow in He II</title><author>Rybalko, A S ; Rubets, S P ; E Ya Rudavskii ; Tikhiy, V A ; Golovachenko, R ; Derkach, V N ; Tarapov, S I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_20905739593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Electromagnetic radiation</topic><topic>Fluids</topic><topic>Heat</topic><topic>Heat transfer</topic><topic>Heat transmission</topic><topic>Helium</topic><topic>Superfluidity</topic><topic>Temperature dependence</topic><toplevel>online_resources</toplevel><creatorcontrib>Rybalko, A S</creatorcontrib><creatorcontrib>Rubets, S P</creatorcontrib><creatorcontrib>E Ya Rudavskii</creatorcontrib><creatorcontrib>Tikhiy, V A</creatorcontrib><creatorcontrib>Golovachenko, R</creatorcontrib><creatorcontrib>Derkach, V N</creatorcontrib><creatorcontrib>Tarapov, S I</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rybalko, A S</au><au>Rubets, S P</au><au>E Ya Rudavskii</au><au>Tikhiy, V A</au><au>Golovachenko, R</au><au>Derkach, V N</au><au>Tarapov, S I</au><format>book</format><genre>document</genre><ristype>GEN</ristype><atitle>Generation of electromagnetic radiation by a heat flow in He II</atitle><jtitle>arXiv.org</jtitle><date>2008-11-20</date><risdate>2008</risdate><eissn>2331-8422</eissn><abstract>A new effect of electromagnetic radiation generated by heat flow in superfluid helium has been detected experimentally. 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| subjects | Electromagnetic radiation Fluids Heat Heat transfer Heat transmission Helium Superfluidity Temperature dependence |
| title | Generation of electromagnetic radiation by a heat flow in He II |
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