Spectral narrowing of atomic resonance by recurrent excitation spectroscopy

Feedback from atom to radiation field via digital-data processing

Takahisa Mitsui, Tohru Kinugawa, Katsumi Sakurai

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We describe the theoretical analysis and experimental detail of recurrent excitation spcctroscopy (RES), which contributes to precise determination of atomic resonance frequency. The basic idea of RES lies in the iterative excitation of the atomic system by radiation. During the preceding excitation, the output field emitted from the atom is recorded in the form of digital data, and the next excitation field is generated in accordance with these data. This recurrent interaction between the atomic system and the radiation field significantly reduces the spectral width of the atomic resonance, while the signal-to-noise ratio remains sufficiently high. To reflect the actual experimental situation, we present a theoretical model in the presence of background white noise, and using this model, analytical and numerical calculations are performed. We find that RES gives a belter signalto-noisc ratio compared to the conventional averaging technique until spectral narrowing is terminated. The combination of RES and the digital-data processing technique has been successfully applied to the magnetic resonance of Rb atoms in the sub-MHz region, where our theoretical findings arc experimentally confirmed.

Original languageEnglish
Pages (from-to)923-930
Number of pages8
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume38
Issue number2 A
Publication statusPublished - 1999

Fingerprint

digital data
radiation distribution
Spectroscopy
Feedback
Radiation
Atoms
Magnetic resonance
White noise
spectroscopy
excitation
atoms
Analytical models
Signal to noise ratio
white noise
magnetic resonance
signal to noise ratios
arcs
output
radiation

Keywords

  • Laser diode
  • Magnetometer
  • Optical pumping
  • Rb
  • Recurrent excitation
  • Spectral narrowing
  • Spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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title = "Spectral narrowing of atomic resonance by recurrent excitation spectroscopy: Feedback from atom to radiation field via digital-data processing",
abstract = "We describe the theoretical analysis and experimental detail of recurrent excitation spcctroscopy (RES), which contributes to precise determination of atomic resonance frequency. The basic idea of RES lies in the iterative excitation of the atomic system by radiation. During the preceding excitation, the output field emitted from the atom is recorded in the form of digital data, and the next excitation field is generated in accordance with these data. This recurrent interaction between the atomic system and the radiation field significantly reduces the spectral width of the atomic resonance, while the signal-to-noise ratio remains sufficiently high. To reflect the actual experimental situation, we present a theoretical model in the presence of background white noise, and using this model, analytical and numerical calculations are performed. We find that RES gives a belter signalto-noisc ratio compared to the conventional averaging technique until spectral narrowing is terminated. The combination of RES and the digital-data processing technique has been successfully applied to the magnetic resonance of Rb atoms in the sub-MHz region, where our theoretical findings arc experimentally confirmed.",
keywords = "Laser diode, Magnetometer, Optical pumping, Rb, Recurrent excitation, Spectral narrowing, Spectroscopy",
author = "Takahisa Mitsui and Tohru Kinugawa and Katsumi Sakurai",
year = "1999",
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TY - JOUR

T1 - Spectral narrowing of atomic resonance by recurrent excitation spectroscopy

T2 - Feedback from atom to radiation field via digital-data processing

AU - Mitsui, Takahisa

AU - Kinugawa, Tohru

AU - Sakurai, Katsumi

PY - 1999

Y1 - 1999

N2 - We describe the theoretical analysis and experimental detail of recurrent excitation spcctroscopy (RES), which contributes to precise determination of atomic resonance frequency. The basic idea of RES lies in the iterative excitation of the atomic system by radiation. During the preceding excitation, the output field emitted from the atom is recorded in the form of digital data, and the next excitation field is generated in accordance with these data. This recurrent interaction between the atomic system and the radiation field significantly reduces the spectral width of the atomic resonance, while the signal-to-noise ratio remains sufficiently high. To reflect the actual experimental situation, we present a theoretical model in the presence of background white noise, and using this model, analytical and numerical calculations are performed. We find that RES gives a belter signalto-noisc ratio compared to the conventional averaging technique until spectral narrowing is terminated. The combination of RES and the digital-data processing technique has been successfully applied to the magnetic resonance of Rb atoms in the sub-MHz region, where our theoretical findings arc experimentally confirmed.

AB - We describe the theoretical analysis and experimental detail of recurrent excitation spcctroscopy (RES), which contributes to precise determination of atomic resonance frequency. The basic idea of RES lies in the iterative excitation of the atomic system by radiation. During the preceding excitation, the output field emitted from the atom is recorded in the form of digital data, and the next excitation field is generated in accordance with these data. This recurrent interaction between the atomic system and the radiation field significantly reduces the spectral width of the atomic resonance, while the signal-to-noise ratio remains sufficiently high. To reflect the actual experimental situation, we present a theoretical model in the presence of background white noise, and using this model, analytical and numerical calculations are performed. We find that RES gives a belter signalto-noisc ratio compared to the conventional averaging technique until spectral narrowing is terminated. The combination of RES and the digital-data processing technique has been successfully applied to the magnetic resonance of Rb atoms in the sub-MHz region, where our theoretical findings arc experimentally confirmed.

KW - Laser diode

KW - Magnetometer

KW - Optical pumping

KW - Rb

KW - Recurrent excitation

KW - Spectral narrowing

KW - Spectroscopy

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SN - 0021-4922

IS - 2 A

ER -