http://www.physlab-wiki.com/ 2026-05-13T20:05:42+00:00 http://www.physlab-wiki.com/ http://www.physlab-wiki.com/lib/tpl/UChicago/images/favicon.ico text/html 2025-02-27T10:42:22+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.physlab-wiki.com/phylabs/lab_courses/phys-211-wiki-home/optical-pumping/apparatus?rev=1740670942&do=diff Optical Pumping Apparatus ---------- In this section, we describe the apparatus and help you obtain an initial signal. In the image above, you see (from left to right) the main apparatus, the control console and digital scope, a function generator, a DC power supply, a couple digital multimeters, some compasses, and a computer.$N = 20$$4.61 \pm 0.01$$N = 154$$6.22 \pm 0.01$$N = 11$$6.46 \pm 0.01$$\Omega$$\Omega$$\Omega$${}^\circ$ text/html 2025-01-07T14:22:09+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.physlab-wiki.com/phylabs/lab_courses/phys-211-wiki-home/optical-pumping/optical-pumping-fall2024-trash?rev=1736277729&do=diff Optical Pumping Autumn 2024 Optical pumping is an experimental technique by which specially prepared photons are used to repeatedly excite an ensemble of Rb atoms in a way which drives the atoms into a specific atomic energy state from which the atom can no longer be excited by the photons. Once you learn how the technique works and how to apply it to Rb atoms in a vapor cell you will use it as a tool to make measurements of the energy of the Zeeman splitting as a function of magnetic field. Yo… text/html 2025-12-01T11:20:36+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.physlab-wiki.com/phylabs/lab_courses/phys-211-wiki-home/optical-pumping/optical-pumping-spring2025?rev=1764606036&do=diff Optical Pumping Staff only: Manual TA Notes Troubleshooting the signal * If the signal students observe has a dip followed by an overshoot and settling, it is likely that the scope channel is set to AC coupling. Changing it to DC coupling and adjusting the detector offset should fix this.$^{2}S_{1/2}$$^{2}P_{1/2}$$m_{f}$$F$$F$$I$$B_{H}$$B_{AV}$$B_{H}$$B_{AH}$$B_{Net}$$B_{sweep}$$B_{AH}$$B_{AV}$$B_{sweep}$$B_{AH}$$B_{AV}$$B_{AV}$$B_{AV}$$B_{AV}$$B_{AH}$$B_{net}$$B_{net}$$B_{net}$$B_{net}$$… text/html 2025-01-07T14:02:10+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.physlab-wiki.com/phylabs/lab_courses/phys-211-wiki-home/optical-pumping/optical-pumping-winter-2024?rev=1736276530&do=diff Optical Pumping Winter 2024 Optical pumping is an experimental technique by which specially prepared photons are used to repeatedly excite an ensemble of Rb atoms in a way which drives the atoms into a specific atomic energy state from which the atom can no longer be excited by the photons. Once you learn how the technique works and how to apply it to Rb atoms in a vapor cell you will use it as a tool to make measurements of the energy of the Zeeman splitting as a function of magnetic field. Yo… text/html 2026-01-06T11:53:52+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.physlab-wiki.com/phylabs/lab_courses/phys-211-wiki-home/optical-pumping/start?rev=1767718432&do=diff Optical Pumping TA Notes Optical pumping is an experimental technique by which specially prepared photons are used to repeatedly excite an ensemble of rubidium atoms in a way which drives the atoms into a specific atomic energy state from which the atom can no longer be excited by the photons. Once you learn how the technique works and how to apply it to rubidium atoms in a vapor cell, you will use it as a tool to make measurements of the energy of the Zeeman splitting as a function of magne… text/html 2025-05-06T11:48:27+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.physlab-wiki.com/phylabs/lab_courses/phys-211-wiki-home/optical-pumping/theory-of-optical-pumping?rev=1746546507&do=diff Theory of Optical pumping ---------- Overview This link takes you to a short video description of optical pumping. The following text covers everything in the video more thoroughly, and the video is intended to supplement the information in the rest of this section.$n$$l$$s$$m_{s}$${}^{87}$$n$$L$$S$$J$$F$$J$$I$$m_{F}$$F$$B$$^{2}P_{1/2}$$^{2}S_{1/2}$$\lambda$$^{\circ}$$\Delta L = 0, \pm 1$$\Delta S = 0$$\Delta F = 0, \pm 1$$m_{F} = 0, \pm 1$$^{2}S_{1/2}(f = 1, m_{f}=0)$$m_{f}$$F$$m_{f}$$^{2}P_…