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. WebDec 12, 2024 · Optically pumped magnetometers (OPMs) are, in principle, scalar-type quantum sensors for magnetic fields based on the Zeeman effect. That is the shift of energy levels due to the interaction of atoms with an external magnetic field [ 1 ]. Usually alkali vapors in paraffin-coated glass cells are used as sensing element.

Wiley-VCH - Optically Pumped Atoms

WebSep 1, 2024 · Optical pumping is a process that produces a nonthermal Zeeman sublevel population distribution. It plays an important role in alkali-metal magnetometers for two … WebOptical pumping is a technique for producing spin alignment in a gas of suitable atoms. Circularly polarized light is applied at the frequency of an electronic transition from the … easy fish coloring sheet

Improvement of spin polarization spatial uniformity in optically pumped …

WebOptical pumping is a process in which light energy is used to excite electrons from a lower to higher energy level. It was first developed by Alfred Kastler in the early 1950s and is primarily... WebApr 5, 2010 · We discuss optical pumping when (a) the collision rates of optically pumped atoms with atoms or molecules of the background gas are small enough that individual velocity groups can be preferentially excited by a monochromatic light beam, (b) the collision rates are still fast enough to partially transfer the spin polarization to other velocity … WebJan 31, 2024 · This paper introduces the Zeeman effect of alkali metal atoms, the principle of optically pumping and magnetic resonance. Based on the physics rationale of an optically pumped magnetometer, the mechanical and electrical structures of … easy fish company wilmslow