Results 261 to 270 of about 34,043 (308)
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Hyperfine Interactions, 1987
This pedagogical paper introduces the basic ideas of optical pumping. Some of the various optical pumping mechanisms are discussed, and illustrated by diagrams showing the experimental apparatus. The density matrix formalism is introduced and used to quantitatively examine the effects of optical pumping.
W. Happer, W. A. Van Wijngaarden
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This pedagogical paper introduces the basic ideas of optical pumping. Some of the various optical pumping mechanisms are discussed, and illustrated by diagrams showing the experimental apparatus. The density matrix formalism is introduced and used to quantitatively examine the effects of optical pumping.
W. Happer, W. A. Van Wijngaarden
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Physics Reports, 1977
Abstract Radiofrequency spectroscopy has been extended to positive ions with S ground states by means of optical pumping. The ions are stored in buffer gases or ion traps and are polarized directly by optical pumping or indirectly by spin exchange, change exchange, or Penning ionization with optically pumped atoms.
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Abstract Radiofrequency spectroscopy has been extended to positive ions with S ground states by means of optical pumping. The ions are stored in buffer gases or ion traps and are polarized directly by optical pumping or indirectly by spin exchange, change exchange, or Penning ionization with optically pumped atoms.
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1966
Publisher Summary This chapter focuses on optical pumping, which is a method for producing important changes in the population distribution of atoms and ions among their energy states by optical irradiation. These population changes can be monitored by the change of intensity of the light transmitted by the sample in which optical pumping is produced
Claude Cohen-Tannoudji, Alfred Kastler
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Publisher Summary This chapter focuses on optical pumping, which is a method for producing important changes in the population distribution of atoms and ions among their energy states by optical irradiation. These population changes can be monitored by the change of intensity of the light transmitted by the sample in which optical pumping is produced
Claude Cohen-Tannoudji, Alfred Kastler
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1976
Publisher Summary This chapter focuses on the concept of optical pumping of molecules. Optical pumping of molecules allows a great number of important molecular parameters to be measured. The most often investigated are: lifetime of the molecular excited state; collision cross-sections for quenching and depolarization; and Lande factors and also fine
M. Broyer +3 more
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Publisher Summary This chapter focuses on the concept of optical pumping of molecules. Optical pumping of molecules allows a great number of important molecular parameters to be measured. The most often investigated are: lifetime of the molecular excited state; collision cross-sections for quenching and depolarization; and Lande factors and also fine
M. Broyer +3 more
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Silicon Nitride‐Photonics‐Enabled Optical Pumping for Optically Pumped Magnetometer
Laser & Photonics ReviewsAbstractDiscrete optical system in optically pumped magnetometers (OPMs) presents a significant challenge to their integration into high‐spatial‐resolution magnetic field detection. Here, the electron spin polarization of atoms using a fiber‐coupled silicon nitride () photonic integrated circuit (PIC) is demonstrated, by the way of delivering arrayed ...
Yuting Xu +5 more
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The Journal of Chemical Physics, 1969
A technique is described for the optical pumping of gas-phase molecules based on the orientation dependence of their absorption cross section. It is shown that when the rate of excitation exceeds the relaxation rate of a ground-state (υ″, J″) level, the magnetic sublevels are preferentially “burned away” and the steady-state M-level population is ...
R. E. Drullinger, R. N. Zare
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A technique is described for the optical pumping of gas-phase molecules based on the orientation dependence of their absorption cross section. It is shown that when the rate of excitation exceeds the relaxation rate of a ground-state (υ″, J″) level, the magnetic sublevels are preferentially “burned away” and the steady-state M-level population is ...
R. E. Drullinger, R. N. Zare
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Polarization by Optical Pumping
2011The polarization of \({}^{3}\hbox{He}\) has been achieved very successfully by optical pumping methods. Polarized \({}^{3}\hbox{He}\) gas targets have been used in many nuclear- and particle-physics experiments.
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1975
Optical pumping is a method for transferring to an ensemble of atoms a fraction of the angular momentum carried by a beam of polarized resonance radiation (1). The observation of the characteristics of the light absorbed or reemitted by these atoms gives a lot of information about atomic structure, relaxation phenomena, interaction processes between ...
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Optical pumping is a method for transferring to an ensemble of atoms a fraction of the angular momentum carried by a beam of polarized resonance radiation (1). The observation of the characteristics of the light absorbed or reemitted by these atoms gives a lot of information about atomic structure, relaxation phenomena, interaction processes between ...
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Subnatural optical pumping dips
Physical Review A, 1986, Klimcak, , Camparo, , Cook, , Frueholz
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