Optical NMR from Single Quantum Dots
Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic ene...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Brown, S. W. [verfasserIn] Kennedy, T. A. [verfasserIn] Gammon, D. [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
1996 |
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| Übergeordnetes Werk: |
Enthalten in: MRS online proceedings library - Warrendale, Pa. : MRS, 1998, 442(1996), 1 vom: Dez., Seite 25-30 |
|---|---|
| Übergeordnetes Werk: |
volume:442 ; year:1996 ; number:1 ; month:12 ; pages:25-30 |
| Links: |
|---|
| DOI / URN: |
10.1557/PROC-442-25 |
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SPR041572890 |
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| 520 | |a Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. | ||
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10.1557/PROC-442-25 doi (DE-627)SPR041572890 (SPR)PROC-442-25-e DE-627 ger DE-627 rakwb eng 670 ASE Brown, S. W. verfasserin aut Optical NMR from Single Quantum Dots 1996 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. Kennedy, T. A. verfasserin aut Gammon, D. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 442(1996), 1 vom: Dez., Seite 25-30 (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:442 year:1996 number:1 month:12 pages:25-30 https://dx.doi.org/10.1557/PROC-442-25 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 442 1996 1 12 25-30 |
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10.1557/PROC-442-25 doi (DE-627)SPR041572890 (SPR)PROC-442-25-e DE-627 ger DE-627 rakwb eng 670 ASE Brown, S. W. verfasserin aut Optical NMR from Single Quantum Dots 1996 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. Kennedy, T. A. verfasserin aut Gammon, D. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 442(1996), 1 vom: Dez., Seite 25-30 (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:442 year:1996 number:1 month:12 pages:25-30 https://dx.doi.org/10.1557/PROC-442-25 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 442 1996 1 12 25-30 |
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10.1557/PROC-442-25 doi (DE-627)SPR041572890 (SPR)PROC-442-25-e DE-627 ger DE-627 rakwb eng 670 ASE Brown, S. W. verfasserin aut Optical NMR from Single Quantum Dots 1996 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. Kennedy, T. A. verfasserin aut Gammon, D. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 442(1996), 1 vom: Dez., Seite 25-30 (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:442 year:1996 number:1 month:12 pages:25-30 https://dx.doi.org/10.1557/PROC-442-25 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 442 1996 1 12 25-30 |
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10.1557/PROC-442-25 doi (DE-627)SPR041572890 (SPR)PROC-442-25-e DE-627 ger DE-627 rakwb eng 670 ASE Brown, S. W. verfasserin aut Optical NMR from Single Quantum Dots 1996 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. Kennedy, T. A. verfasserin aut Gammon, D. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 442(1996), 1 vom: Dez., Seite 25-30 (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:442 year:1996 number:1 month:12 pages:25-30 https://dx.doi.org/10.1557/PROC-442-25 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 442 1996 1 12 25-30 |
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10.1557/PROC-442-25 doi (DE-627)SPR041572890 (SPR)PROC-442-25-e DE-627 ger DE-627 rakwb eng 670 ASE Brown, S. W. verfasserin aut Optical NMR from Single Quantum Dots 1996 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. Kennedy, T. A. verfasserin aut Gammon, D. verfasserin aut Enthalten in MRS online proceedings library Warrendale, Pa. : MRS, 1998 442(1996), 1 vom: Dez., Seite 25-30 (DE-627)57782046X (DE-600)2451008-7 1946-4274 nnns volume:442 year:1996 number:1 month:12 pages:25-30 https://dx.doi.org/10.1557/PROC-442-25 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_2005 AR 442 1996 1 12 25-30 |
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Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. |
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Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. |
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Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR041572890</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220112052411.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201102s1996 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1557/PROC-442-25</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR041572890</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)PROC-442-25-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">670</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Brown, S. W.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Optical NMR from Single Quantum Dots</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1996</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract We have observed nuclear magnetic resonance (NMR) signatures from constituent Ga and As nuclei in single GaAs quantum dots formed by interface fluctuations in GaAs/AlGaAs quantum wells. Orientation of the nuclear spin system by optical pumping causes an Overhauser shift in the excitonic energy levels proportional to the degree of nuclear orientation. NMR was detected by monitoring changes in the combined Overhauser plus Zeeman splitting of an exciton localized in a single quantum dot as the RF frequency was swept through a nuclear resonance. The NMR signals originate from ~$ 10^{5} $ nuclei in the quantum dot — (20 nm)3 volume - representing an increase in sensitivity of five orders of magnitude over previous optical NMR measurements and thirteen orders of magnitude over conventional NMR. The data were fit to Lorentzian lineshapes, giving 75As linewidths on the order of 20 kHz.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kennedy, T. A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gammon, D.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">MRS online proceedings library</subfield><subfield code="d">Warrendale, Pa. : MRS, 1998</subfield><subfield code="g">442(1996), 1 vom: Dez., Seite 25-30</subfield><subfield code="w">(DE-627)57782046X</subfield><subfield code="w">(DE-600)2451008-7</subfield><subfield code="x">1946-4274</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:442</subfield><subfield code="g">year:1996</subfield><subfield code="g">number:1</subfield><subfield code="g">month:12</subfield><subfield code="g">pages:25-30</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://dx.doi.org/10.1557/PROC-442-25</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_SPRINGER</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">442</subfield><subfield code="j">1996</subfield><subfield code="e">1</subfield><subfield code="c">12</subfield><subfield code="h">25-30</subfield></datafield></record></collection>
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