WebDec 7, 2011 · Optical pumping can produce high nuclear polarization in the Cs vapor due to perturbations of the hyperfine interaction during collisions with buffer-gas … WebSep 10, 2013 · There are lots of times, in a modern research lab, where you want a polarized gas, and the usual way to produce it is by optical pumping. In this lab you will learn basic optical pumping, and you will practice it on a gas of Rubidium atoms. Rubidium is a fairly simple atom.

Strongly Correlated Quantum Gas Prepared by Direct …

WebApr 1, 2024 · The incident laser power is controlled by a combination of a half-wave plate and a polarizing beam-splitter cube. The laser cross-section at the interaction region … WebApr 23, 2024 · The main principle is to polarize K atoms by a pump laser of 770 nm, and then Rb atoms are polarized by spin-exchange collisions of K atoms. When the inertial measurement device rotates at a certain angular velocity, the spin state of Rb atoms changes accordingly. pain in front of shin below knee

OPT - Optical Pumping - University of California, Berkeley

WebNov 24, 2024 · Quantum-degenerate gases are prepared in two steps: fast laser cooling until a certain density and temperature limit are reached, followed by slower evaporative … WebThe technique named “ optical pumping ” consists of absorbing pump light in order to excite erbium ions and provide population inversion in a given energy band. As seen in Figure 4.1, optical pumping may efficiently be performed around λ=0.98 μm from the fundamental ground state level 4 I 15/2 into the 4 I 11/2 level. Optical pumping may … WebLaser pumping is the act of energy transfer from an external source into the gain medium of a laser. The energy is absorbed in the medium, producing excited states in its atoms. … subbing in a special education classroom