Email Address

[email protected]

Phone Number

+0086-371-86162511

optical pumping simple

Get In Touch

OPTICAL PUMPING OF RUBIDIUM VAPOR Introduction A

A simple example of optical pumping Let’s imagine a nearly trivial atom: no nuclear spin and only one electron. For concreteness, you can think of the 4He+ ion, which is similar to a Hydrogen atom, but without the nuclear spin of the proton. Its ground state is 1S1=2 (n = 1,S = 1=2,L = 0, J = 1=2).

Get Quote

Chapter 1 Optical Pumping

In optical pumping circularly polarized photons are generated, sent through an ab-sorbing gas, and then to a detector. See Fig. 1.1 Rightcircularpolarizedphotons carryoneunitofangularmomentum. Tounderstand the nature of optical pumping suppose the absorbing atoms can be represented by the simple spin system shown in Fig. 1.2.

Get Quote

Optical Pumping: Three- and Four-Level Systems

In a simple two-level system, it is not possible to obtain a population inversion with optical pumping because the system can absorb pump light (i.e., gain energy) only as long as population inversion, and thus light amplification, is not achieved. Essentially, the problem is stimulated emission caused by the pump light itself.. Inversion by optical pumping becomes possible when using a three

Get Quote

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 both isotopes of natural rubidium.

Get Quote

Optical pumping Wikipedia

Optical pumping is a process in which light is used to raise (or "pump") electrons from a lower energy level in an atom or molecule to a higher one. It is commonly used in laser construction to pump the active laser medium so as to achieve population inversion. The technique was developed by the 1966 Nobel Prize winner Alfred Kastler in the early 1950s. 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 tw

Get Quote

Optical Pumping Manual University of San Diego

Optical pumping is the basis of all lasers; it is an important tool for studying collision and exchange relaxation processes, and also finds applicability in both solid state and liquid state physics. A good article to start your reading might be Thomas Carver's review

Get Quote

OPT Optical Pumping

1 Optical Pumping Description (OPT) This experiment is quantum mechanics in action. When a sample of gaseous atoms is placed in a static magnetic eld, the electronic states undergo Zeeman splitting in addition to ne-structure and hyper ne-

Get Quote

Optical Pumping

Optical Pumping Scattered resonance light can polarize atoms and provide a simple means of observing fine structure. Thomas R. Carver The term optical pumping refers to the redistribution of atoms among their fine- or hyperfine-structure levels by means of light. The resonance radiation of the atom is usually the radiation used. This is

Get Quote

Optical Pumping University of Michigan

Optical Pumping Optical pumping uses light to affect the internal degrees of freedom of a sample of atoms in a vapor. These internal degrees of freedom are angular momentum states of the atomic ground state, which are populated when light is absorbed and emitted. This

Get Quote

Optical Pumping MIT

Feb 17, 2011· A. Kastler discovered optical pumping in the 1950’s and received the Nobel Prize for his work in 1966. In this experiment you will explore the phenomenon of op-tical pumping and its application to fundamental mea-surements in atomic and nuclear physics with equipment originally built for the Junior Lab shortly after the pub-

Get Quote

Chapter 1 Optical Pumping

In optical pumping circularly polarized photons are generated, sent through an ab-sorbing gas, and then to a detector. See Fig. 1.1 Rightcircularpolarizedphotons carryoneunitofangularmomentum. Tounderstand the nature of optical pumping suppose the absorbing atoms can be represented by the simple spin system shown in Fig. 1.2.

Get Quote

Optical Pumping Manual University of San Diego

Optical pumping is the basis of all lasers; it is an important tool for studying collision and exchange relaxation processes, and also finds applicability in both solid state and liquid state physics. A good article to start your reading might be Thomas Carver's review

Get Quote

PHY 451| Optical Pumping

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

Get Quote

/home/dbpengra/phys432/Optical pumping/optical

2.2 Example: A simple 1-electron system Under the right conditions, it is possible to cause the atoms to have a different distribution. When a non-thermal distribution is achieved by using a source of light, the process is then called “optical pumping”. In order to see the essence of this scheme, let us first describe a simple energy level

Get Quote

Optical Pumping of Molecules* Stanford University

This optical pumping technique is applicable to a wide class of molecules, and both simple classical and quantum mechanical theories of the pumping process have been formulated. These theories relate the degree of polarization to both the pumping rate and the relaxation time of the pumped level. The time-dependent as well as steady­

Get Quote

OPTICAL PUMPING OF RUBIDIUM OP1-B Guide to the

That is, the entire discussion of all our optical pumping experiments will be based on a model that considers a free rubidium atom as if it was a simple hydrogenic single electron atom. The outer electron can be described by means of an orbital angular momentum L, a spin

Get Quote

Optical Pumping of Rubidium University of San Diego

Optical Pumping of Rubidium Adam Egbert,1, a) Will Wiegand,1 and Hannah Sheppard2 1)University of San Diego 2)University of San Diego (Dated: 26 September 2015) In this experiment, we explored the how optical pumping can be used to access the quantum numbers associated with Zeeman splitting inside of Rubidium-85 and Rubidium-87 atoms. Optical

Get Quote

Simple highly efficient pumping configuration in high

Aug 30, 2017· A simple high-power thin-disk pumping configuration using a radiation combination of four commercially available laser–diode stacks is introduced. Two setup modifications are presented to compensate the nonsuitable shape of the pumping spot arising from low beam quality in our combination method. The effects of setup modifications on pumping

Get Quote

Radiation trapping in rubidium optical pumping at low

Feb 01, 2007· We have made a systematic study of rubidium optical pumping in a simple cylindrical cell geometry with a high-power 10 W diode laser array, low magnetic fields, and buffer-gas pressures of less than 50 torr.We have determined rubidium polarizations experimentally for H 2, N 2, He, and Ar buffer gases, with Rb number densities from 10 12 to 10 13 cm − 3.

Get Quote

Spin-exchange relaxation-free magnetometry using

Spin-exchange relaxation free alkali-metal magnetometers typically operate in the regime of high optical density, presenting challenges for simple and efficient optical pumping and detection. We describe a high-sensitivity Rb magnetometer using a single elliptically polarized off

Get Quote

Efficient and scalable side pumping scheme for short high

Efficient and Scalable Side Pumping Scheme for Short High-Power Optical Fiber Lasers and Amplifiers Pavel Polynkin, Valery Temyanko, Masud Mansuripur, and N. Peyghambarian Abstract—A new and simple method of pumping short high-power optical fiber lasers and amplifiers is

Get Quote

Optical Pumping Advanced Lab

Optical Pumping Description (OPT) Note that there is NO eating or drinking in the 111-Lab anywhere, except in rooms 282 & 286 LeConte on the bench with the BLUE stripe around it. Thank You, the Staff. This experiment is quantum mechanics in action. When a sample of gaseous atoms is placed in a static magnetic field, the electronic states

Get Quote

Simple method of light-shift suppression in optical

A simple hole-burning model based on velocity-selective optical pumping, including the velocity diffusion effect caused by velocity-changing collisions, is adopted to qualitatively clarify the

Get Quote

Radiation trapping in rubidium optical pumping at low

We have made a systematic study of rubidium optical pumping in a simple cylindrical cell geometry with a high-power 10 W diode laser array, low magnetic fields, and buffer-gas pressures of less than 50 torr. We have determined rubidium polarizations experimentally for H. 2,N. 2, He, and Ar buffer gases, with Rb number densities from 10. 12. to

Get Quote
Latest News