Magnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THz
In this paper we show that by applying a perpendicular magnetic field to a quantum cascade structure it is possible to enhance the gain of different optical transitions. The combination of magnetic confinement with a broadband, cutoff-free optical resonator allows the demonstration of laser action o...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2010
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| _version_ | 1826257492804370432 |
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| author | Scalari, G Turcinkova, D Lloyd-Hughes, J Amanti, M Fischer, M Beck, M Faist, J |
| author_facet | Scalari, G Turcinkova, D Lloyd-Hughes, J Amanti, M Fischer, M Beck, M Faist, J |
| author_sort | Scalari, G |
| collection | OXFORD |
| description | In this paper we show that by applying a perpendicular magnetic field to a quantum cascade structure it is possible to enhance the gain of different optical transitions. The combination of magnetic confinement with a broadband, cutoff-free optical resonator allows the demonstration of laser action over a large bandwidth, from 733 GHz to 1.38 THz together with the emission at 3.2 THz. A different lasing scheme is revealed that does not rely on resonant tunneling as the main injection mechanism. In combination with the magnetically enhanced gain laser emission at 1 THz is observed up to a temperature of 115 K, which corresponds to a ratio kB T/hv=2.3 between the lattice thermal energy and the laser photon energy. © 2010 American Institute of Physics. |
| first_indexed | 2024-03-06T18:19:05Z |
| format | Journal article |
| id | oxford-uuid:05a6ad9c-83d6-4437-bc1f-1f219edb13fc |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:19:05Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:05a6ad9c-83d6-4437-bc1f-1f219edb13fc2022-03-26T08:58:17ZMagnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THzJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:05a6ad9c-83d6-4437-bc1f-1f219edb13fcEnglishSymplectic Elements at Oxford2010Scalari, GTurcinkova, DLloyd-Hughes, JAmanti, MFischer, MBeck, MFaist, JIn this paper we show that by applying a perpendicular magnetic field to a quantum cascade structure it is possible to enhance the gain of different optical transitions. The combination of magnetic confinement with a broadband, cutoff-free optical resonator allows the demonstration of laser action over a large bandwidth, from 733 GHz to 1.38 THz together with the emission at 3.2 THz. A different lasing scheme is revealed that does not rely on resonant tunneling as the main injection mechanism. In combination with the magnetically enhanced gain laser emission at 1 THz is observed up to a temperature of 115 K, which corresponds to a ratio kB T/hv=2.3 between the lattice thermal energy and the laser photon energy. © 2010 American Institute of Physics. |
| spellingShingle | Scalari, G Turcinkova, D Lloyd-Hughes, J Amanti, M Fischer, M Beck, M Faist, J Magnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THz |
| title | Magnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THz |
| title_full | Magnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THz |
| title_fullStr | Magnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THz |
| title_full_unstemmed | Magnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THz |
| title_short | Magnetically assisted quantum cascade laser emitting from 740 GHz to 1.4 THz |
| title_sort | magnetically assisted quantum cascade laser emitting from 740 ghz to 1 4 thz |
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