Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N
A picosecond acoustic pulse is used to study the photoelastic interaction in single zinc-blende GaN/AlxGa1−xN quantum wells. We use an optical time-resolved pump-probe setup and demonstrate that tuning the photon energy to the quantum well’s lowest electron-hole transition makes the experiment sensi...
| Main Authors: | , , , , , , |
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| Format: | Article |
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American Physical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/41606/ |
| _version_ | 1848796313606422528 |
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| author | Czerniuk, T. Ehrlich, T. Wecker, T. As, D.J. Yakovlev, D.R. Akimov, A.V. Bayer, M. |
| author_facet | Czerniuk, T. Ehrlich, T. Wecker, T. As, D.J. Yakovlev, D.R. Akimov, A.V. Bayer, M. |
| author_sort | Czerniuk, T. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A picosecond acoustic pulse is used to study the photoelastic interaction in single zinc-blende GaN/AlxGa1−xN quantum wells. We use an optical time-resolved pump-probe setup and demonstrate that tuning the photon energy to the quantum well’s lowest electron-hole transition makes the experiment sensitive to the quantum well only. Because of the small width, its temporal and spatial resolution allows us to track the few-picosecond-long transit of the acoustic pulse. We further deploy a model to analyze the unknown photoelastic coupling strength of the quantum well for different photon energies and find good agreement with the experiments. |
| first_indexed | 2025-11-14T19:46:00Z |
| format | Article |
| id | nottingham-41606 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:46:00Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-416062020-05-04T18:31:00Z https://eprints.nottingham.ac.uk/41606/ Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N Czerniuk, T. Ehrlich, T. Wecker, T. As, D.J. Yakovlev, D.R. Akimov, A.V. Bayer, M. A picosecond acoustic pulse is used to study the photoelastic interaction in single zinc-blende GaN/AlxGa1−xN quantum wells. We use an optical time-resolved pump-probe setup and demonstrate that tuning the photon energy to the quantum well’s lowest electron-hole transition makes the experiment sensitive to the quantum well only. Because of the small width, its temporal and spatial resolution allows us to track the few-picosecond-long transit of the acoustic pulse. We further deploy a model to analyze the unknown photoelastic coupling strength of the quantum well for different photon energies and find good agreement with the experiments. American Physical Society 2017-01-11 Article PeerReviewed Czerniuk, T., Ehrlich, T., Wecker, T., As, D.J., Yakovlev, D.R., Akimov, A.V. and Bayer, M. (2017) Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N. Physical Review Applied, 7 (1). 014006/1-014006/6. ISSN 2331-7019 http://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.7.014006 doi:10.1103/PhysRevApplied.7.014006 doi:10.1103/PhysRevApplied.7.014006 |
| spellingShingle | Czerniuk, T. Ehrlich, T. Wecker, T. As, D.J. Yakovlev, D.R. Akimov, A.V. Bayer, M. Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N |
| title | Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N |
| title_full | Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N |
| title_fullStr | Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N |
| title_full_unstemmed | Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N |
| title_short | Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N |
| title_sort | picosecond acoustics in single quantum wells of cubic gan/(al,ga)n |
| url | https://eprints.nottingham.ac.uk/41606/ https://eprints.nottingham.ac.uk/41606/ https://eprints.nottingham.ac.uk/41606/ |