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Optical pumping of Rubidium
I'm currently doing a lab experiment on the Optical pumping of rubidium and I'm fairly confused about the different levels of splitting. As far as I am aware, an atom has a fine structure and then a hyperfine structure. The hyperfine structure can then be split further through the Zeeman effect.
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Optical Pumping of Rubidium and Analysis of Light-Matter
Optical pumping is method of signi cantly changing ... ing the rubidium vapour was irradiated with circularly polarised D1-light at around 780nm from a rubidium lamp which excites the 52S
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Optical Pumping of Rubidium
Optical Pumping of Rubidium Advanced Laboratory, Physics 407 University of Wisconsin Madison, WI 53706 Abstract A Rubidium high-frequency lamp is used as the pumping light source to excite Rubidium atoms in a sample cell. The pumping source light is filtered to transmit the D1 Rb line and polarizers are used to produce circular polarization.
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Optical Pumping Lab
Optical Pumping Lab - Boston University
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Optical Pumping of Rubidium Vapor
Optical pumping: technique of using visible light to raise in- dividual atoms from lower to higher states of internal energy. Practical applications: the maser, the laser, …
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Zeeman optical pumping of 87Rb atoms in a hollow core …
In this work, we focus on the optical pumping of rubidium atoms confined in the core of a kagome-type fibre [14] to the F=2, m F=2 spin state (stretched state), which improves the efficiency of the ORCA memory. In the case of an unpolarised medium, the two-photon 5S1/2 → 5D5/2 transition exploited in the
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Optical Pumping of Rubidium Vapor
Optical Pumping transition transitions Optical Radiofrequency A B C After applying resonant radiofrequency... • Rb pumping: due to circularly polarized light, every trans-mitted photon has an energy of ±¯h, transitions in the Rb atoms have ∆mf = 1. • Spontaneous transitions can occur with ∆mf = ±1,0. • Atoms landing in mf = +1 ...
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Optical Pumping of Rubidium Vapor
The time constant of the pumping action is measured as a function of the intensity of the pumping light, and the results are compared with a theory of competing rate processes - pumping versus collisional depolarization. Lab Guide. Optical Pumping of Rubidium Vapor Lab Guide (PDF) References. Bell, William E., and Arnold L. Bloom.
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quantum mechanics
There are two kinds of optical pumping that are possible. Hyperfine Optical pumping and Zeeman Optical Pumping. The latter is under zero magnetic field and former requires a magnetic field. The spin-wave (ground state coherence) you create depends mainly on the polarization of the light being used and its intensity.
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Measuring Optical Pumping of Rubidium Vapor
Optical pumping is the excitation of atoms with a resonant light source and the stochastically biasing of the transitions in order to migrate the atoms into the highest …
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OPTICAL PUMPING OF RUBIDIUM VAPOR
OPTICAL PUMPING OF RUBIDIUM VAPOR V1.3 R. A. Schumacher, February 2007 I. INTRODUCTION The primary goal of this experiment is to measure the Zeeman splitting of the ground states of neutral rubidium atoms in a weak magnetic field and to determine from the data the Landé g-factors for these states.
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OPTICAL PUMPING OF RUBIDIUM OP1-B Guide to the …
D. Optical pumping in rubidium 2-11 E. Zero field transition 2-14 F. Rf spectroscopy of 85 Rb and 87Rb 2-15 G. Transient effects 2-17 3. Apparatus A. Rubidium discharge lamp 3-1 ... Optical pumping is the basis of all lasers; it is an important tool for studying collision and
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OPTICAL PUMPING OF RUBIDIUM
the spherical symmetry of the electronic ground state of neon, collisions between a rubidium and neon atom do not exchange angular momentum. This turns out to be …
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Optical Pumping
using optical pumping, and we will do that in this lab. 1 Prelab I 1.1 Rubidium's atomic energy level structure Rubidium in its atomic state has just one valence electron and can be well approximated by a one-electron-atom model. Its nuclear properties are dif-ferent from Hydrogen, however, and this will give it a different energy-level ...
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MOT
experimental skills in laser spectroscopy, laser optics, and feedback control. 1.Pre-requisites: There is no formal pre-requisite for this lab. However, we do recommend that you do the OPT experiment beforehand, since you will have already learned about the atomic structure of rubidium, selection rules for atom-light interactions, and optical ...
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Optical Pumping and the Hyperfine Structure of Rubidium 87
Optical Pumping and the Hyp erÞne Struct ure of R ub idiu m 87 Lab orator y M an u al for Ph ys ics 3081 Thomas Dumitrescu!, Solom on End lich Ma y 2007 Abstract In th is ex p erim en t you will learn ab out th e p ow erfu l exp erime n tal tec h niqu e of opt ical pu m p ing, and app ly it to inves tigate th e h yp erÞne
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Improving the start-up characteristics of the rubidium atomic clock
The 87 Rb atoms are moved from their lower ground state to an excited state by employing optical pumping, which is the fundamental physical operation of the rubidium atomic clock. 17–19 Additionally, the majority of RAFS employ optical pumping through a discharge lamp to generate a population under non-equilibrium between the …
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OPTICAL PUMPING | NIST
Spin Exchange Optical Pumping (SEOP) Using the spin exchange optical pumping (SEOP) method, polarization of the 3 He gas involves three steps. Enclosed inside the glass cell is ~100 mg of …
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Optical pumping of Rubidium
Optical Pumping of Rubidium Advanced Laboratory, Physics 407 University of Wisconsin Madison, WI 53706 Abstract A Rubidium high-frequency lamp is used as the …
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PHY 451| Optical Pumping
Optical Pumping of Rb Vapor About the experiment. ... The atom you will be studying is rubidium because of its simple hydrogen-like qualities - a "one-electron atom" with core electrons forming closed shells. You will measure the energy splittings of the two isotopes of rubidium, the nuclear moments of these isotopes, and the strength of the ...
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Optical Pumping of Rubidium Vapor
Description. Optical Pumping experiment equipment. Rubidium vapor in a weak (~.01-10 gauss) magnetic field controlled with Helmholtz coils is pumped with circularly …
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optical pumping of rubidium
1.3.2 Optical Pumping in Rubidium. Optical Pumping is a method of driving an ensemble of atoms away from thermodynamic equilibrium bymeans of the resonant absorption of light. Rubidium resonance radiation is passed through a heated absorp-tion cell containing rubidium metal and a buffer gas. Resonance light is …
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Optical pumping of the Zeeman components in the rubidium vapor
Abstract. We investigated the optical pumping of the Zeeman components of rubidium atoms, in the presence of the external magnetic field ranging from the geomagnetic up to 130 Gauss. Using the saturated absorption spectroscopy with linearly polarized pump and probe laser beams, the rubidium Doppler-free spectra at different …
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Optical Pumping
Rubidium vapor in a weak ( .01- 10 gauss) magnetic eld controlled with Helmholtz coils is pumped with circularly polarized D1 light from a rubidium rf …
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Optical Pumping of Rubidium
Optical pumping is a common technique used in constructing lasers. Light is used to excite (or pump) electrons in an atom from a lower energy level to a speci c higher level. Alkali metals are often used because they have only one valence electron, so that the electron can be treated like in hydrogen. In the case of rubidium, external DC and RF ...
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Department of Physics: Indiana University Bloomington
Department of Physics: Indiana University Bloomington
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Department of Physics
Department of Physics
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Spin-Exchange Optical Pumping with Alkali-Metal Vapors
While the method of Spin-exchange optical pumping, SEOP, of noble gases has existed since 1960 [Bouchiat60], many fundamental aspects of spin exchange optical pumping have gone largely unexplained. These questions included the values of the rate coef-flcients for spin-exchange, many aspects of the alkali-metal polarization and density
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OPTICAL PUMPING OF RUBIDIUM VAPOR …
In the Advanced Lab experiment, you use circularly polarized light to pump a particular level in rubidium vapor. Then, using magnetic fields and radio-frequency excitations, you manipulate the population of the pumped state in a manner similar to that used in the …
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Physics 432: Optical pumping in rubidium
Optical pumping in rubidium. This elegant experiment introduces the double resonance technique, whereby magnetic resonance transitions are detected by optical absorption. Circularly polarized light from a Rb lamp passes through a cell containing Rb vapor. A weak magnetic field is applied to the cell, splitting the ground state sublevels.
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