Application of time-of-flight velocity selection to metastable de-excitation spectroscopy
| dc.contributor.advisor | Dunning, F. B. | |
| dc.creator | Butler, William Hollis | |
| dc.date.accessioned | 2009-06-04T00:27:52Z | |
| dc.date.available | 2009-06-04T00:27:52Z | |
| dc.date.issued | 1988 | |
| dc.description.abstract | Previous experiments have shown that Metastable De-excitation Spectroscopy (MDS) provides a valuable probe of surface electronic and magnetic structure. Spin labelling of the excited electron can yield additional information about the de-excitation mechanisms. In such experiments, neon ($\sp3$P$\sb2$) and argon ($\sp3$P$\sb2$) metastable atoms are spin-labelled (polarized) by laser optical pumping, and their polarization measured by a Stern-Gerlach analyzer. In the present work, a Time-of-Flight (TOF) velocity selection capability has been implemented in an existing MDS apparatus to permit accurate determination of the metastable atom polarization achieved by optical pumping. The data show that polarizations in excess of 85% and 92% may be obtained for Ne ($\sp3$P$\sb2$) and Ar ($\sp3$P$\sb2$), respectively. TOF techniques are also used to investigate the velocity distribution of metastable atoms in the beam, and to eliminate spurious signals due to photon-surface interactions. | |
| dc.format.extent | 61 p. | en_US |
| dc.format.mimetype | application/pdf | |
| dc.identifier.callno | Thesis Phys. 1988 Butler | |
| dc.identifier.citation | Butler, William Hollis. "Application of time-of-flight velocity selection to metastable de-excitation spectroscopy." (1988) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/13274">https://hdl.handle.net/1911/13274</a>. | |
| dc.identifier.uri | https://hdl.handle.net/1911/13274 | |
| dc.language.iso | eng | |
| dc.rights | 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. | |
| dc.subject | Atomic physics | |
| dc.subject | Condensed matter physics | |
| dc.title | Application of time-of-flight velocity selection to metastable de-excitation spectroscopy | |
| dc.type | Thesis | |
| dc.type.material | Text | |
| thesis.degree.department | Physics | |
| thesis.degree.discipline | Natural Sciences | |
| thesis.degree.grantor | Rice University | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Arts |
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