Optical Pumping: An Introduction

Bernheim, R. A.; Franke, Ernst K.

doi:10.1119/1.1973948

Cited by 14 publications

(12 citation statements)

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“…One may argue that this instability will not happen in real experiments with the atom population being prepared using additional pumping fields. However, the thermal collision relaxation rate can be tuned to be small if we decrease the gas temperature, increase the pumping beam waist, and fill in the "buffer" gas [14,28]. In this case, a small transition rate contributed by the optical pumping beam could be sufficient for the population preparation.…”

Section: Some Physical Discussionmentioning

confidence: 99%

Quantum noise of a white-light cavity using a double-pumped gain medium

Ma¹,

Miao

Zhao³

et al. 2015

Phys. Rev. A

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Laser interferometric gravitational-wave detectors implement Fabry-Pérot cavities to increase their peak sensitivity. However, this is at the cost of reducing their detection bandwidth, which originates from the propagation phase delay of the light. The "white-light-cavity" idea, first proposed by Wicht et al. [Opt. Commun. 34, 431 (1997)], is to circumvent this limitation by introducing anomalous dispersion, using a double-pumped gain medium, to compensate for such a phase delay. In this article, starting from the Hamiltonian of the atom-light interaction, we apply an input-output formalism to evaluate the quantum noise of the system. We find that apart from the additional noise associated with the parametric amplification process noted by others, the stability condition for the entire system poses an additional constraint. By surveying the parameter regimes where the gain medium remains stable (not lasing) and stationary, we find that there is no net enhancement of the shot-noise-limited sensitivity. Therefore, other gain media or different parameter regimes should be explored for realizing the white-light cavity.

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Section: Some Physical Discussionmentioning

confidence: 99%

Quantum noise of a white-light cavity using a double-pumped gain medium

Ma¹,

Miao

Zhao³

et al. 2015

Phys. Rev. A

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show abstract

“…These experiments, however, were not very successful due to the very shon relaxation times induced by most buffer gases, especially those with permanent dipole moments [77]. A very good introduction to this work (and optical pumping in general) is the book by Bernheim [78] which contains a selection of reprints up to 1965.…”

Section: Chapter 2 Low Field Experimentsmentioning

confidence: 99%

Applications of highly spin-polarized xenon in NMR

Long

1993

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“…*) Спином частицы мы называем ее полный момент количества движения отно-сительно центра инерции. **) Иногда вместо термина ориентация употребляют термин «поляризация» и наоборот 10 . Однако целесообразнее называть поляризацией лишь состояния, харак-теризуемые полярным вектором, употребляя в более широком смысле термин «ориента-ция».…”

Section: д а варишловичunclassified

Spin states of atoms and molecules in the cosmic medium

Varshalovich

1970

Usp. Fiz. Nauk

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Optical Pumping: An Introduction

Cited by 14 publications

References 0 publications

Quantum noise of a white-light cavity using a double-pumped gain medium

Quantum noise of a white-light cavity using a double-pumped gain medium

Applications of highly spin-polarized xenon in NMR

Spin states of atoms and molecules in the cosmic medium

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