[{"publication":"physica status solidi (b)","abstract":[{"text":"We analyse an InAs/GaAs-based electric field tunable single quantum dot diode with a thin tunnelling barrier between a\r\nburied n þ -back contact and a quantum dot layer. In voltage- dependent photoluminescence measurements, we observe rich signatures from spatially direct and indirect transitions from the wetting layer and from a single quantum dot. By analysing the Stark effect, we show that the indirect transitions result from a recombination between confined holes in the wetting or quantum dot layer with electrons from the edge of the Fermi sea in the back contact. Using a 17 nm tunnel barrier which provides comparably weak tunnel coupling allowed us to observe clear signatures of direct and corresponding indirect lines for a series of neutral and positively charged quantum dot states.","lang":"eng"}],"keyword":["excitons","GaAs","InAs","quantum dots","spatially indirect transitions","Stark shift"],"language":[{"iso":"eng"}],"issue":"3","year":"2015","publisher":"Wiley","date_created":"2018-08-29T10:03:56Z","title":"Spatially indirect transitions in electric field tunable quantum dot diodes","type":"journal_article","status":"public","_id":"4276","department":[{"_id":"15"},{"_id":"230"},{"_id":"35"}],"user_id":"42514","article_type":"original","publication_identifier":{"issn":["0370-1972"]},"publication_status":"published","intvolume":"       253","page":"437-441","citation":{"ama":"Rai AK, Gordon S, Ludwig A, Wieck AD, Zrenner A, Reuter D. Spatially indirect transitions in electric field tunable quantum dot diodes. <i>physica status solidi (b)</i>. 2015;253(3):437-441. doi:<a href=\"https://doi.org/10.1002/pssb.201552591\">10.1002/pssb.201552591</a>","chicago":"Rai, Ashish K., Simon Gordon, Arne Ludwig, Andreas D. Wieck, Artur Zrenner, and Dirk Reuter. “Spatially Indirect Transitions in Electric Field Tunable Quantum Dot Diodes.” <i>Physica Status Solidi (B)</i> 253, no. 3 (2015): 437–41. <a href=\"https://doi.org/10.1002/pssb.201552591\">https://doi.org/10.1002/pssb.201552591</a>.","ieee":"A. K. Rai, S. Gordon, A. Ludwig, A. D. Wieck, A. Zrenner, and D. Reuter, “Spatially indirect transitions in electric field tunable quantum dot diodes,” <i>physica status solidi (b)</i>, vol. 253, no. 3, pp. 437–441, 2015.","mla":"Rai, Ashish K., et al. “Spatially Indirect Transitions in Electric Field Tunable Quantum Dot Diodes.” <i>Physica Status Solidi (B)</i>, vol. 253, no. 3, Wiley, 2015, pp. 437–41, doi:<a href=\"https://doi.org/10.1002/pssb.201552591\">10.1002/pssb.201552591</a>.","bibtex":"@article{Rai_Gordon_Ludwig_Wieck_Zrenner_Reuter_2015, title={Spatially indirect transitions in electric field tunable quantum dot diodes}, volume={253}, DOI={<a href=\"https://doi.org/10.1002/pssb.201552591\">10.1002/pssb.201552591</a>}, number={3}, journal={physica status solidi (b)}, publisher={Wiley}, author={Rai, Ashish K. and Gordon, Simon and Ludwig, Arne and Wieck, Andreas D. and Zrenner, Artur and Reuter, Dirk}, year={2015}, pages={437–441} }","short":"A.K. Rai, S. Gordon, A. Ludwig, A.D. Wieck, A. Zrenner, D. Reuter, Physica Status Solidi (B) 253 (2015) 437–441.","apa":"Rai, A. K., Gordon, S., Ludwig, A., Wieck, A. D., Zrenner, A., &#38; Reuter, D. (2015). Spatially indirect transitions in electric field tunable quantum dot diodes. <i>Physica Status Solidi (B)</i>, <i>253</i>(3), 437–441. <a href=\"https://doi.org/10.1002/pssb.201552591\">https://doi.org/10.1002/pssb.201552591</a>"},"date_updated":"2022-01-06T07:00:46Z","volume":253,"author":[{"first_name":"Ashish K.","last_name":"Rai","full_name":"Rai, Ashish K."},{"first_name":"Simon","full_name":"Gordon, Simon","last_name":"Gordon"},{"first_name":"Arne","last_name":"Ludwig","full_name":"Ludwig, Arne"},{"first_name":"Andreas D.","last_name":"Wieck","full_name":"Wieck, Andreas D."},{"full_name":"Zrenner, Artur","id":"606","orcid":"0000-0002-5190-0944","last_name":"Zrenner","first_name":"Artur"},{"id":"37763","full_name":"Reuter, Dirk","last_name":"Reuter","first_name":"Dirk"}],"doi":"10.1002/pssb.201552591"},{"status":"public","abstract":[{"text":"Coherent physics and applications of exciton qubits in electric fi eld tunable quantum dot structures are our focus. Excitations with picosecond (ps) laser pulses result in qubit rotations. Using state projection by tunnelling the readout can be performed in quantitative way. As a function of electric fi eld induced detuning Ramsey fringes of a single exciton qubit can be observed and controlled for double pulse excitation. Therefore it is possible to demonstrate voltage controlled qubit manipulations within a wide range of pulse delays. Using fast electric signals, phase-locked to ps-laser pulses, the coherent control of an exciton qubit can be obtained by electric interaction. Such voltage controlled qubit manipulations seem to be essential for new types of optoelectronic quantum gates and novel applications in the fi eld of coherent optoelectronics.","lang":"eng"}],"editor":[{"full_name":"Jahnke, Frank","last_name":"Jahnke","first_name":"Frank"}],"publication":"QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES","type":"book_chapter","language":[{"iso":"eng"}],"keyword":["excitons","quantum bits","coherent manipulation","Ramsey interference","quantum gate"],"department":[{"_id":"15"},{"_id":"230"},{"_id":"35"}],"user_id":"49428","_id":"4381","page":"528-559","citation":{"chicago":"Michaelis de Vasconcellos, Steffen, Simon Gordon, Dirk Mantei, Yves Alexander Leier, M. Al-Hmoud, Wadim Quiring, and Artur Zrenner. “Coherent Optoelectronics with Quantum Dots.” In <i>QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES</i>, edited by Frank Jahnke, 528–59. Woodhead Publishing, 2012.","ieee":"S. Michaelis de Vasconcellos <i>et al.</i>, “Coherent optoelectronics with quantum dots,” in <i>QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES</i>, F. Jahnke, Ed. Woodhead Publishing, 2012, pp. 528–559.","ama":"Michaelis de Vasconcellos S, Gordon S, Mantei D, et al. Coherent optoelectronics with quantum dots. In: Jahnke F, ed. <i>QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES</i>. Woodhead Publishing; 2012:528-559.","apa":"Michaelis de Vasconcellos, S., Gordon, S., Mantei, D., Leier, Y. A., Al-Hmoud, M., Quiring, W., &#38; Zrenner, A. (2012). Coherent optoelectronics with quantum dots. In F. Jahnke (Ed.), <i>QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES</i> (pp. 528–559). Woodhead Publishing.","bibtex":"@inbook{Michaelis de Vasconcellos_Gordon_Mantei_Leier_Al-Hmoud_Quiring_Zrenner_2012, title={Coherent optoelectronics with quantum dots}, booktitle={QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES}, publisher={Woodhead Publishing}, author={Michaelis de Vasconcellos, Steffen and Gordon, Simon and Mantei, Dirk and Leier, Yves Alexander and Al-Hmoud, M. and Quiring, Wadim and Zrenner, Artur}, editor={Jahnke, FrankEditor}, year={2012}, pages={528–559} }","mla":"Michaelis de Vasconcellos, Steffen, et al. “Coherent Optoelectronics with Quantum Dots.” <i>QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES</i>, edited by Frank Jahnke, Woodhead Publishing, 2012, pp. 528–59.","short":"S. Michaelis de Vasconcellos, S. Gordon, D. Mantei, Y.A. Leier, M. Al-Hmoud, W. Quiring, A. Zrenner, in: F. Jahnke (Ed.), QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES, Woodhead Publishing, 2012, pp. 528–559."},"year":"2012","publication_identifier":{"isbn":["9780857092328 0857092324"]},"publication_status":"published","title":"Coherent optoelectronics with quantum dots","date_created":"2018-09-13T06:43:40Z","author":[{"first_name":"Steffen","full_name":"Michaelis de Vasconcellos, Steffen","last_name":"Michaelis de Vasconcellos"},{"first_name":"Simon","last_name":"Gordon","full_name":"Gordon, Simon"},{"first_name":"Dirk","full_name":"Mantei, Dirk","last_name":"Mantei"},{"first_name":"Yves Alexander","last_name":"Leier","full_name":"Leier, Yves Alexander"},{"first_name":"M.","last_name":"Al-Hmoud","full_name":"Al-Hmoud, M."},{"last_name":"Quiring","full_name":"Quiring, Wadim","first_name":"Wadim"},{"first_name":"Artur","full_name":"Zrenner, Artur","id":"606","orcid":"0000-0002-5190-0944","last_name":"Zrenner"}],"date_updated":"2022-01-06T07:01:00Z","publisher":"Woodhead Publishing"}]