Contact Us

C o n t a c t U s

Optical Pumping MIT

2011-2-17  6. If the earth’s eld were that of a idealized ‘point’ magnetic dipole at the center and parallel to the rotation axis, then what would be the direction of the eld at the latitude of Boston? II. INTRODUCTION A. Kastler discovered optical pumping in the 1950’s and received the Nobel Prize for his work in 1966. In

Optical Pumping an overview ScienceDirect Topics

An optical pumping magnetometer takes advantage of the differences between electron energy levels in an atom of alkali metal vapor. The energy of an electron can assume one of several levels, depending on the orbit the electron follows and the orientation of the magnetic moment of the electron with respect to the ambient magnetic field (parallel or antiparallel).

Optical Pumping TeachSpin

Optical Pumping is a widely used and powerful technique for exploring atomic energy states, atomic transitions, and atomic collisions using electromagnetism in the form of light, radio frequency, and uniform constant magnetic fields. TeachSpin’s Optical Pumping apparatus explores the atomic physics of

OPT Optical Pumping

2021-8-25  6.5 Timescales for optical pumping using square wave amplitude modulation of the rf eld. . . . 17 7 Analysis 17 References 19 1. 1 Introduction One of the great early successes of quantum mechanics was its use to describe the structure of atoms and molecules. As is now well-known, the internal structure of atoms and molecules can be described

Optical Pumping Experiment Michigan State University

2010-8-17  Using optical pumping, all the atoms are excited in M = +2 state. Cancel the earth field by narrowing the zero field resonance peak 2. Turn on the RF generator and tune the RF frequency from 10kHz to 90kHz 3. Change the sweep field and obtain the absorption

Optical Pumping and Magnetic Resonance

2013-10-4  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.

Optical Pumping in 85Rb and 87 University of San Diego

2015-10-26  Optical pumping is a powerful method for exploring the atomic structures of 85Rb and 87Rb. This experiment is capable of observing the ne structures, hyper ne structures, and Zeeman splitting of Rubidium isotopes using radio frequency, electromagnetism, and magnetic elds. This allows for energy level transitions of the electrons in the ground

Optical Pumping Control Unit New York University

2013-9-10  Optical Pumping Control Unit Introduction This document is gives an overview of the optical pumping control unit. Magnetic Fields Magnetic Field Coils: In the optical pumping experiment there are three sets of coils that allow one to control the magnetic elds seen by the atoms. Each set of coils is in a Helmholtz con guration, which

Optically pumped magnetometers: From quantum origins

2019-10-1  3. Quantum basis of optical pumping. Optical Pumping is a method by which a light source transfers angular momentum to a sample in such a way that nearly all atoms in the sample occupy the same energy level.The key concepts of angular momentum and energy levels will be explored further in the following sections.. 3.1. Angular momentum. In this context angular momentum refers to the quantum

Optical pumping, explained by RP Photonics Encyclopedia

As the host medium (a laser crystal, glass or piece of ceramic) is electrically insulating, optical pumping is the only way to supply the laser-active ions (e.g. rare earth ions) with energy. See Figure 1 as an example.

Optical Pumping of Mesospheric Sodium: a New

1992-7-1  Optical Pumping of Mesospheric Sodium: a New Measurement Capability The first observation of laser-induced optical pumping in a remote sensing application is reported. We have observed a large variation in the amount of laser light resonantly backscattered from the earth's mesospheric sodium layer depending on the laser polarization.

PHY 451| Optical Pumping Michigan State University

2014-8-22  Optical pumping has been widely used to exploring atomic energy states, atomic transitions, and atomic collisions. Several Nobel Prizes have been awarded for work in this area (eg. Alfred Kastler 1966). When a sample of gaseous atoms is placed in a static magnetic field, the electronic states undergo Zeeman energy level splittings in addition

Optical Pumping Experiment Michigan State University

2010-8-17  Using optical pumping, all the atoms are excited in M = +2 state. Cancel the earth field by narrowing the zero field resonance peak 2. Turn on the RF generator and tune the RF frequency from 10kHz to 90kHz 3. Change the sweep field and obtain the absorption

Optical Pumping JSTOR

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

Optical Pumping and Magnetic Resonance

2013-10-4  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.

Optical Pumping of Rubidium home.sandiego.edu

2015-9-26  an optical detector. FIG. 3. 1 An overhead view of the of the optical pumping apparatus used The rubidium cell is surrounded by two sets of Helmholtz coils in order to produce magnetic elds. One eld should be aligned with the magnetic axis of the earth and is used to counteract earths natural magnetic eld in

Optical Pumping Control Unit New York University

2013-9-10  Optical Pumping Control Unit Introduction This document is gives an overview of the optical pumping control unit. Magnetic Fields Magnetic Field Coils: In the optical pumping experiment there are three sets of coils that allow one to control the magnetic elds seen by the atoms. Each set of coils is in a Helmholtz con guration, which

Optical Pumping of Rubidium Vapor MIT

2005-4-23  Here optical pumping comes into play, altering the populations of the energy levels in such a way that the atomic transitions can be detected with more ease. Fig-ure 2 illustrates the general principle of optical pumping. We look at three levels: A, B, and C, two of which are

Optical Pumping of Rubidium University of San Diego

2011-3-28  Optical Pumping of Rubidium Jonathon Garamella (Dated: 27 March 2011) Optical Pumping was used to examine the Zeeman splitting associated with the hyper ne structure of Rubid-ium. The g-factors, speci cally g f, were found to be 0:48 0:05 and 0:32 0:05 for 87Rb and Rb respectively in

Conceptual Tour of Optical Pumping New York University

2013-9-10  Optical Pumping, Conceptual Tour Barbara Wolff-Reichert, August 2003 horizontal magnetic field produced by the Optical Pumping coils opposite to but smaller than that of the earth leaving a net horizontal field around the cell in the same direction as

Optical Pumping JSTOR

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

Optical Pumping and Magnetic Resonance

2013-10-4  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.

Physics Experiment: LEAI-19 Apparatus of Optical Pumping

Optical pumping is an important experiment in modern physics. It reveals many important physics concepts such as atomic energy states and atomic transitions in atomic physics, optics, electromagnetism, and electronics. This technique has a wide range of applications in fundamental physics research, accurate measurement of magnetic field, as

Optical Pumping of Rubidium Vapor Dan Elton

2021-6-3  Optical Pumping of Rubidium Vapor D.C. Elton1, a) and J. Chia-Yib) Stony Brook University (Dated: 27 April 2012) We studied the hyper ne levels of Rubidium using the technique of optical pumping. Using the equation 0 = g J 0 h(2I+1) Bfor Rb-87 we found g F = 0:5177 :0002 and B earth = 0:416 :0002. For Rb-85 we found g F = 0:342 :0001 and B

Optical Pumping of Rubidium Vapor MIT

2005-4-23  Here optical pumping comes into play, altering the populations of the energy levels in such a way that the atomic transitions can be detected with more ease. Fig-ure 2 illustrates the general principle of optical pumping. We look at three levels: A, B, and C, two of which are

Optical Pumping of Rubidium Boston University

2013-9-14  Optical Pumping of Rubidium A. J. Sternbach, and M. Pourmand Department of Physics, Boston University, Boston, Massachusetts 02215, USA We report on the observation of zero field-induced transition, weak field and quadratic Zeeman splitting in Rubidium. We begin with a theoretical description of the expected atomic spectra in the case of hydrogen.

Optical Pumping and Double-Resonance Techniques

Abstract. Optical pumping means selective population or depletion of atomic or molecular levels by absorption of radiation, resulting in a population change ΔN in these levels, which causes a noticeable deviation from the thermal equilibrium population. With intense atomic resonance lines emitted from hollow-cathode lamps or from microwave discharge lamps, optical pumping had successfully

Optical Pumping of Rubidium University of San Diego

2011-3-28  Optical Pumping of Rubidium Jonathon Garamella (Dated: 27 March 2011) Optical Pumping was used to examine the Zeeman splitting associated with the hyper ne structure of Rubid-ium. The g-factors, speci cally g f, were found to be 0:48 0:05 and 0:32 0:05 for 87Rb and Rb respectively in

SECTION 5: OPTICAL AMPLIFIERS

2003-4-8  Optical Gain Rare earth doped optical amplifiers work much like a laser. The primary difference is that they do not have a resonator. Amplification occurs primarily through the stimulated emission process. The medium is pumped until a population inversion state is achieved. Pump powers are typically several 20-250 mW. An isolator is used to reduce