Optical pumping of quantum dot nuclear spins A.

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Optical pumping Wikipedia

Optical pumping is also used to cyclically pump electrons bound within an atom or molecule to a well-defined quantum state.For the simplest case of coherent two-level optical pumping of an atomic species containing a single outer-shell electron, this means that the electron is coherently pumped to a single hyperfine sublevel (labeled ), which is defined by the polarization of the pump

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Optical pumping for investigation of nuclear properties of

Optical Pumping (OP) is an efficient technique to produce oriented nuclei by absorption of polarized light by atoms. With the advent of tunable lasers, both resolution and sensitivity of the OP technique has greatly increased. The optically induced nuclear orientat

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Optical pumping of Si nuclear spins in bulk silicon at

Optical pumping of 29Si nuclear spins in bulk silicon at high magnetic field and liquid helium temperature Anne S. Verhulst,* Ileana G. Rau, and Yoshihisa Yamamoto† Quantum Entanglement Project, ICORP, JST, E.L. Ginzton Laboratory, Stanford University, Stanford, California 94305

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Optical Pumping an overview ScienceDirect Topics

Optical Pumping Generation and Measurement of Electromagnetic Fields in Geophysical Applications. Still another form of sensitive Chemical Physics. Radiofrequency spectroscopy comprises many branches including nuclear magnetic resonance, nuclear Lasers, Gas. Molecular emission at wavelengths

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[0906.5260v2] Pumping of nuclear spins by the optical

6/29/2009 · We demonstrate that efficient optical pumping of nuclear spins in semiconductor quantum dots (QDs) can be achieved by resonant pumping of optically "forbidden" transitions. This process corresponds to one-to-one conversion of a photon absorbed by the dot into a polarized nuclear spin, which also has potential for initialization of hole spin in QDs. Pumping

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PHY 451 Optical Pumping Michigan State University

Optical Pumping by Arnold L. Bloom, Scientific American, Oct. 1960, p 72; Optical Pumping by Robert L. de Zafra, American Journal of Physics, 28 (1960), pp 646-654; Optical Pumping Theory and Experiment by Reuben Benumof, American Journal of Physics, 33 (1966), p 151; Related Experiments Nuclear Magnetic Resonance; Supplementary materials

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Bulk Nuclear Polarization Enhanced at Room Temperature by

The intensity of the NMR signal detected after optical pumping exceeded by 23 orders of magnitude the signal observed in the same setup after the sample was subject to full thermal relaxation in a 4.7 T field. It was found that the nuclear spins hyperpolarized by these optical means had the same NMR properties as bulk 13C spins [28].

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Optical Pumping of Rubidium University of San Diego

Optical pumping was used in order to determine the Lande g-factor g f and the related nuclear spin, I~, of two isotopes of Rubidium, 85Rb and 87Rb, by examining the Zeeman splitting of the hyper ne structure. Optical pumping was also used to examine the quadratic Zeeman e ect. 1 INTRODUCTION Although Albert Einstein laid down the the-

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Optical pumping for investigation of nuclear properties of

Optical Pumping (OP) is an efficient technique to produce oriented nuclei by absorption of polarized light by atoms. With the advent of tunable lasers, both resolution and sensitivity of the OP technique has greatly increased. The optically induced nuclear orientation produces changes in the angular distribution of nuclear emissions. The β-asymmetry or γ-anisotropy of the optically

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Polarizing the electronic and nuclear spin of the NV

Polarizing the electronic and nuclear spin of the NV-center in diamond in arbitrary magnetic fields analysis of the optical pumping process optical pumping,magnetic resonace,NV-center

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Optical Pumping of Rubidium physics.wisc.edu

Optical pumping of Rubidium Dr. Johannes Recht and Dr. Werner Klein, LH-Contact 1, (1991) pp. 8-11 Optical pumping is a process used in high frequency spectroscopy which was developed by A. Kastler. It allows the spectroscopy of atomic energy states in an energy region which is not accessible by means of direct, optical observation.

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NUCLEAR MAGNETIC RESONANCE GYROSCOPES

electrons; thus the picture of optical pumping presented in Fig. 2 does not strictly apply, but the nuclear spin for Hg atoms can be optically pumped directly with a Hg lamp. Happer's optical pumping review [13] presents the physics of the optical pumping of Hg in detail. C. Spin-exchange optical pumping

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Optical pumping for investigation of nuclear properties of

Optical Pumping (OP) is an efficient technique to produce oriented nuclei by absorption of polarized light by atoms. With the advent of tunable lasers, both resolution and sensitivity of the OP technique has greatly increased. The optically induced nuclear orientation produces changes in the angular distribution of nuclear emissions. The β-asymmetry or γ-anisotropy of the optically

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Optical pumping of stored atomic ions (*)

No 6 OPTICAL PUMPING OF STORED ATOMIC IONS 139 Relaxation of atomic ions in metastable excited levels (e.g. the lowest,D5/, states in Ba' or Hg') can proceed via ion-neutral collisions (expected to be efficient) or via the electric fields of ion-ion collisions.For the D states of Ba' or Hg', the collisional electric field from ion-ion collisions mixes some 2P3/2 state into the

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Optical pumping Wikipedia

Optical pumping is also used to cyclically pump electrons bound within an atom or molecule to a well-defined quantum state.For the simplest case of coherent two-level optical pumping of an atomic species containing a single outer-shell electron, this means that the electron is coherently pumped to a single hyperfine sublevel (labeled ), which is defined by the polarization of the pump

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DETERMINATION OF NUCLEAR GROUND STATE PROPERTIES

-The possibilities of determining nuclear spin, moments and variation in charge volume by optical pumping of on line masseparated isotopes are described for the example of the isotopic chain lY1Hg-205Hg. The variation in nuclear charge volume (6 < r2 >) along this

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Optical pumping for investigation of nuclear properties of

Optical Pumping (OP) is an efficient technique to produce oriented nuclei by absorption of polarized light by atoms. With the advent of tunable lasers, both resolution and sensitivity of the OP technique has greatly increased. The optically induced nuclear orientat

Get Price

Optical pumping Wikipedia

Optical pumping is also used to cyclically pump electrons bound within an atom or molecule to a well-defined quantum state.For the simplest case of coherent two-level optical pumping of an atomic species containing a single outer-shell electron, this means that the electron is coherently pumped to a single hyperfine sublevel (labeled ), which is defined by the polarization of the pump

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Optical Pumping and Magnetic Resonance

Optical Pumping is a method rst developed by Alfred Kastler1 (who was awarded the Nobel Prize in 1966), that has become a widely used technique in experimental physics ever since. Optical pumping is a process in which electromagnetic radiation is used to pump electrons into a well-de ned quantum state.

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Optical pumping of stored atomic ions (*)

No 6 OPTICAL PUMPING OF STORED ATOMIC IONS 139 Relaxation of atomic ions in metastable excited levels (e.g. the lowest,D5/, states in Ba' or Hg') can proceed via ion-neutral collisions (expected to be efficient) or via the electric fields of ion-ion collisions.For the D states of Ba' or Hg', the collisional electric field from ion-ion collisions mixes some 2P3/2 state into the

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Optical Pumping in Solid State Nuclear Magnetic

An important current trend in solid state nuclear magnetic resonance (NMR) is the growing exploitation of optical pumping of nuclear spin polarizations as a means of enhancing and localizing NMR signals. Recent work has been concentrated in two areas, namely optically pumped NMR in semiconductors and optical pumping of noble gases. Progress in these two

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PHY 451 Optical Pumping Michigan State University

Optical Pumping by Arnold L. Bloom, Scientific American, Oct. 1960, p 72; Optical Pumping by Robert L. de Zafra, American Journal of Physics, 28 (1960), pp 646-654; Optical Pumping Theory and Experiment by Reuben Benumof, American Journal of Physics, 33 (1966), p 151; Related Experiments Nuclear Magnetic Resonance; Supplementary materials

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Optical pumping for investigation of nuclear properties of

Optical Pumping (OP) is an efficient technique to produce oriented nuclei by absorption of polarized light by atoms. With the advent of tunable lasers, both resolution and sensitivity of the OP technique has greatly increased. The optically induced nuclear orientat

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Optical Pumping

Optical pumping was first observed, in the manner described, by a group in Paris (3), following suggestions by Kastler, Bitter, and Brossel (4) of a way to measure the hyperfine splitting in the excited states of atoms where atomic-beam techniques cannot be used, and independently by R. H. Dicke and his students at Princeton (5), who were

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Hyperpolarization (physics) Wikipedia

Spin-exchange optical pumping Introduction. Spin exchange optical pumping (SEOP) is one of several hyperpolarization techniques discussed on this page. This technique specializes in creating hyperpolarized (HP) noble gases, such as 3 He, 129 Xe, and quadrupolar 131 Xe, 83 Kr, and 21 Ne. Noble gases are required because SEOP is performed in the gas phase, they are

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Polarizing the electronic and nuclear spin of the NV

Polarizing the electronic and nuclear spin of the NV-center in diamond in arbitrary magnetic fields analysis of the optical pumping process optical pumping,magnetic resonace,NV-center

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Optical-pumping saturation spectroscopy and nuclear

The use of laser optical pumping to induce nuclear orientation in several isotopes and one isomer of atomic sodium vapor is described. Essentially complete nuclear polarization, P > 90%, has been achieved in stable /sup 23/Na when pumping with modest laser intensities (I approx. = 10 mW/cm/sup 2/).

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The Use of Optical Pumping in Determining the Nuclear

Using TeachSpin's OP1-A optical pumping RF spectrometer, we probed the low and high eld Zeeman e ects of two rubidium isotopes, Rb85 and Rb87, with the goal of determining the nuclear spins, I, of each. To this end, we rst determined g F of each isotope through low eld optical pumping RF resonance spectroscopy.

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OPTICAL PUMPING OF RUBIDIUM Department of Physics

performing optical pumping experiments. You will probably need to review your atomic physics and possibly your optics. The use of circularly polarized light is also crucial to the optical pmping process. We strongly urge you to review these subjects as well as to look up most of the references given in this manual.

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