Increased sensitivity of spin noise spectroscopy using homodyne detection in n -doped GaAs

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Increased sensitivity of spin noise spectroscopy using homodyne detection in n -doped GaAs. / Petrov, M. Yu; Kamenskii, A. N.; Zapasskii, V. S.; Bayer, M.; Greilich, A.

в: Physical Review B, Том 97, № 12, 125202, 16.03.2018.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{c8110c17325c4d6f995d5230a71c8e8b,

title = "Increased sensitivity of spin noise spectroscopy using homodyne detection in n -doped GaAs",

abstract = "We implement the homodyne detection scheme for an increase in the polarimetric sensitivity in spin noise spectroscopy. Controlling the laser intensity of the local oscillator, which is guided around the sample and does not perturb the measured spin system, we are able to improve the signal-to-noise ratio. The opportunity for additional amplification of the measured signal strength allows us to reduce the probe laser intensity incident on the sample and therefore to approach the nonperturbative regime. The efficiency of this scheme with signal enhancement by more than a factor of 3 at low probe powers is demonstrated on bulk n-doped GaAs, where the reduced electron-spin relaxation rate is shown experimentally. Additionally, the control of the optical phase provides us with the possibility to switch between measuring Faraday rotation and ellipticity without changes in the optical setup.",

keywords = "HETERODYNE-DETECTION",

author = "Petrov, {M. Yu} and Kamenskii, {A. N.} and Zapasskii, {V. S.} and M. Bayer and A. Greilich",

year = "2018",

month = mar,

day = "16",

doi = "10.1103/PhysRevB.97.125202",

language = "English",

volume = "97",

journal = "Physical Review B-Condensed Matter",

issn = "1098-0121",

publisher = "American Physical Society",

number = "12",

}

RIS

TY - JOUR

T1 - Increased sensitivity of spin noise spectroscopy using homodyne detection in n -doped GaAs

AU - Petrov, M. Yu

AU - Kamenskii, A. N.

AU - Zapasskii, V. S.

AU - Bayer, M.

AU - Greilich, A.

PY - 2018/3/16

Y1 - 2018/3/16

N2 - We implement the homodyne detection scheme for an increase in the polarimetric sensitivity in spin noise spectroscopy. Controlling the laser intensity of the local oscillator, which is guided around the sample and does not perturb the measured spin system, we are able to improve the signal-to-noise ratio. The opportunity for additional amplification of the measured signal strength allows us to reduce the probe laser intensity incident on the sample and therefore to approach the nonperturbative regime. The efficiency of this scheme with signal enhancement by more than a factor of 3 at low probe powers is demonstrated on bulk n-doped GaAs, where the reduced electron-spin relaxation rate is shown experimentally. Additionally, the control of the optical phase provides us with the possibility to switch between measuring Faraday rotation and ellipticity without changes in the optical setup.

AB - We implement the homodyne detection scheme for an increase in the polarimetric sensitivity in spin noise spectroscopy. Controlling the laser intensity of the local oscillator, which is guided around the sample and does not perturb the measured spin system, we are able to improve the signal-to-noise ratio. The opportunity for additional amplification of the measured signal strength allows us to reduce the probe laser intensity incident on the sample and therefore to approach the nonperturbative regime. The efficiency of this scheme with signal enhancement by more than a factor of 3 at low probe powers is demonstrated on bulk n-doped GaAs, where the reduced electron-spin relaxation rate is shown experimentally. Additionally, the control of the optical phase provides us with the possibility to switch between measuring Faraday rotation and ellipticity without changes in the optical setup.

KW - HETERODYNE-DETECTION

UR - http://www.scopus.com/inward/record.url?scp=85044003364&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/increased-sensitivity-spin-noise-spectroscopy-using-homodyne-detection-n-doped-gaas

U2 - 10.1103/PhysRevB.97.125202

DO - 10.1103/PhysRevB.97.125202

M3 - Article

AN - SCOPUS:85044003364

VL - 97

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 12

M1 - 125202

ER -

ID: 28611533