Spatially resolved and time-resolved imaging of transport of indirect excitons in high magnetic fields
We present the direct measurements of magnetoexciton transport. Excitons give the opportunity to realize the high magnetic-field regime for composite bosons with magnetic fields of a few tesla. Long lifetimes of indirect excitons allow the study of kinetics of magnetoexciton transport with time-reso...
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| Veröffentlicht in: | Physical review. B 2017-06, Vol.95 (23), Article 235308 |
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| container_title | Physical review. B |
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| creator | Dorow, C. J. Hasling, M. W. Calman, E. V. Butov, L. V. Wilkes, J. Campman, K. L. Gossard, A. C. |
| description | We present the direct measurements of magnetoexciton transport. Excitons give the opportunity to realize the high magnetic-field regime for composite bosons with magnetic fields of a few tesla. Long lifetimes of indirect excitons allow the study of kinetics of magnetoexciton transport with time-resolved optical imaging of exciton photoluminescence. We performed spatially, spectrally, and time-resolved optical imaging of transport of indirect excitons in high magnetic fields. We observed that an increasing magnetic field slows down magnetoexciton transport. The time-resolved measurements of the magnetoexciton transport distance allowed for an experimental estimation of the magnetoexciton diffusion coefficient. An enhancement of the exciton photoluminescence energy at the laser excitation spot was found to anticorrelate with the exciton transport distance. A theoretical model of indirect magnetoexciton transport is presented and is in agreement with the experimental data. |
| doi_str_mv | 10.1103/PhysRevB.95.235308 |
| format | Article |
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J. ; Hasling, M. W. ; Calman, E. V. ; Butov, L. V. ; Wilkes, J. ; Campman, K. L. ; Gossard, A. C.</creator><creatorcontrib>Dorow, C. J. ; Hasling, M. W. ; Calman, E. V. ; Butov, L. V. ; Wilkes, J. ; Campman, K. L. ; Gossard, A. C.</creatorcontrib><description>We present the direct measurements of magnetoexciton transport. Excitons give the opportunity to realize the high magnetic-field regime for composite bosons with magnetic fields of a few tesla. Long lifetimes of indirect excitons allow the study of kinetics of magnetoexciton transport with time-resolved optical imaging of exciton photoluminescence. We performed spatially, spectrally, and time-resolved optical imaging of transport of indirect excitons in high magnetic fields. We observed that an increasing magnetic field slows down magnetoexciton transport. The time-resolved measurements of the magnetoexciton transport distance allowed for an experimental estimation of the magnetoexciton diffusion coefficient. An enhancement of the exciton photoluminescence energy at the laser excitation spot was found to anticorrelate with the exciton transport distance. A theoretical model of indirect magnetoexciton transport is presented and is in agreement with the experimental data.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.95.235308</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Bosons ; Diffusion coefficient ; Excitons ; Imaging ; Magnetic fields ; Photoluminescence ; Transport</subject><ispartof>Physical review. 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An enhancement of the exciton photoluminescence energy at the laser excitation spot was found to anticorrelate with the exciton transport distance. A theoretical model of indirect magnetoexciton transport is presented and is in agreement with the experimental data.</description><subject>Bosons</subject><subject>Diffusion coefficient</subject><subject>Excitons</subject><subject>Imaging</subject><subject>Magnetic fields</subject><subject>Photoluminescence</subject><subject>Transport</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNo9kMtOwzAQRS0EElXpD7CyxDplYjtpvYSKl1QJxGNtOfa4dZUmwXYr8vekKnQ1M1dnXpeQ6xymeQ789m3dx3fc309lMWW84DA_IyMmSplJWcrzU17AJZnEuAGAvAQ5Azki7qPTyeu67mnA2NZ7tFQ3lia_xeyk-K1e-WZFW0dT0E3s2pAOhW-sD2gSxR_jU9vEQaFrv1rToaHB5A11Hmsbr8iF03XEyV8ck6_Hh8_Fc7Z8fXpZ3C0zw3OZshIqaxlqYVAKFMOdlgETQjBbSae1c7rUWElj7RzAzAakstxYY6SQyEo-JjfHuV1ov3cYk9q0u9AMKxXLGZ9BASUbKHakTGhjDOhUF4YXQ69yUAdL1b-lShbqaCn_BRRdbiw</recordid><startdate>20170628</startdate><enddate>20170628</enddate><creator>Dorow, C. 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C.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dorow, C. J.</au><au>Hasling, M. W.</au><au>Calman, E. V.</au><au>Butov, L. V.</au><au>Wilkes, J.</au><au>Campman, K. L.</au><au>Gossard, A. C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spatially resolved and time-resolved imaging of transport of indirect excitons in high magnetic fields</atitle><jtitle>Physical review. B</jtitle><date>2017-06-28</date><risdate>2017</risdate><volume>95</volume><issue>23</issue><artnum>235308</artnum><issn>2469-9950</issn><eissn>2469-9969</eissn><abstract>We present the direct measurements of magnetoexciton transport. Excitons give the opportunity to realize the high magnetic-field regime for composite bosons with magnetic fields of a few tesla. Long lifetimes of indirect excitons allow the study of kinetics of magnetoexciton transport with time-resolved optical imaging of exciton photoluminescence. We performed spatially, spectrally, and time-resolved optical imaging of transport of indirect excitons in high magnetic fields. We observed that an increasing magnetic field slows down magnetoexciton transport. The time-resolved measurements of the magnetoexciton transport distance allowed for an experimental estimation of the magnetoexciton diffusion coefficient. 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| subjects | Bosons Diffusion coefficient Excitons Imaging Magnetic fields Photoluminescence Transport |
| title | Spatially resolved and time-resolved imaging of transport of indirect excitons in high magnetic fields |
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