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Effect of Transverse Pumping in Optical Pumping
Journal of the Physical Society of Japan, 1972A theoretical and experimental study has been made of the effect of transverse optical pumping in the optical-rf double resonance of cesium atoms. The solution of Bloch type equations shows that the Hanle effect and new type resonances become notable in the weak magnetic field or for strong rf field, as the effect of the transverse pumping.
Noriaki Tsukada +2 more
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Enhanced fully optically pumped magnetic resonance with optical sideband auxiliary pumping
Optics Letters, 2019We have proposed a new technique to obtain highly polarized atoms for improving the sensitivity of the all-optical Cs atomic magnetometer. In a Bell–Bloom magnetometer, the resonance pumping from the ground state F g = 3 to the excited state F e = 4 at the D1 line ...
Z. Y. Jiang +4 more
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Optically Pumped Submillimeter-Wave Sources
IEEE Transactions on Microwave Theory and Techniques, 1974Optical pumping of polar molecules by means of infrared lasers is expected to lead to thousands of laser lines throughout the submillimeter-wave region. Already, 282 new laser lines between 34 mu m and 1.814 mm in 18 different molecules have been reported. Very stable CW operation, very high pulsed output, linear polarization, high gain, and many other
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Optical-pumping noise in laser-pumped, all-optical microwave frequency references
Journal of the Optical Society of America B, 2001We demonstrate that optical pumping plays a significant role in determining the noise in certain types of laser-pumped vapor-cell microwave frequency standards by changing the way in which the laser’s FM noise is converted to AM noise by the optical-absorption profile.
J. Kitching +4 more
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Optically Pumped Magnetometers for MEG
2014Optically-pumped magnetometers (OPMs) have seen rapid progress over the last decade in terms of performance and technology development. As highly sensitive room-temperature magnetometers they present several advantages over superconducting quantum interference device (SQUID) sensors, such as the possibility for conformal geometries and low-maintenance ...
Svenja Knappe +2 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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1968
Publisher Summary This chapter discusses the optical pumping. This method utilizes the selection rules governing the absorption of radiation by the atoms from a circularly polarized collimated beam. Optical pumping is a tool to study the forces acting on the irradiated atoms due to their environment.
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Publisher Summary This chapter discusses the optical pumping. This method utilizes the selection rules governing the absorption of radiation by the atoms from a circularly polarized collimated beam. Optical pumping is a tool to study the forces acting on the irradiated atoms due to their environment.
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Optically Pumped Nuclear Magnetometer
Review of Scientific Instruments, 1963A continuous recording total earth's field magnetometer has been demonstrated which utilizes optical pumping in He3 and the resultant polarization of the nuclear spins. The device operates as a ``self-oscillator'' at the Larmor frequency of the ground state atoms. The oscillator has a ``Q'' of 104 in a 0.5-G field.
L. D. Schearer +2 more
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Optically pumped polarized H− ion sources
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1987Abstract The principles of operation for the optically pumped polarized hydrogen ion source based on charge exchange collisions between hydrogen ions and optically pumped electron-spin polarized alkali atoms are described. The problems associated with the use of an optically pumped-charge exchange polarized ion source for 3 He are discussed.
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1981
The generation of far-infrared radiation (FIR) by optically pumping molecular gases was first accomplished by Chang and Bridges in 1970 [1]. They made use of CO2 laser to pump specific vibrationalrotational states of CH3F molecule at low pressure, producing population inversion between rotational levels in the excited vibrational state.
A. Scalabrin +3 more
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The generation of far-infrared radiation (FIR) by optically pumping molecular gases was first accomplished by Chang and Bridges in 1970 [1]. They made use of CO2 laser to pump specific vibrationalrotational states of CH3F molecule at low pressure, producing population inversion between rotational levels in the excited vibrational state.
A. Scalabrin +3 more
openaire +1 more source