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Bixler, David Lynn 2007-08-20T23:40:44Z 2007-08-20T23:40:44Z 1995 Bixler, David Lynn. "Optical manipulation of helium(2(3)S) atoms with a diode laser." (1995) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17041">https://hdl.handle.net/1911/17041</a>. https://hdl.handle.net/1911/17041 THESIS PHYS. 1995 BIXLER A commercial Spectra Diode Laboratories, 1.083 $\mu$m diode laser has been used to efficiently spin polarize an atomic beam of He(2$\sp3$S) metastable atoms by optical pumping on the $\rm 2\sp3S\sb1\rightarrow2\sp3P\sb1$ (D1) transition. The diode laser is an InGaAs/GaAs strained multiquantum well with a distributed Bragg reflector to insure single longitudinal mode operation. The laser has been frequency stabilized to less than 1 MHz/hr drift. The helium metastable atom beam is produced by electron impact and the polarization is measured using a Stern-Gerlach analyzer. Atomic polarizations exceeding 97% have been obtained with $\sim$25 mW of power from the diode laser. A number of experiments currently under construction may also make use of the diode laser. These include the production of a spin polarized helium ion beam by optically pumping the metastable atoms in an rf discharge, and the trapping of helium metastable atoms in a magneto-optical trap (MOT). application/pdf eng Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. Atomic physics Optical manipulation of helium(2(3)S) atoms with a diode laser Thesis Text Physics Natural Sciences Rice University Masters Master of Arts open.access