A spectrographic study of the absorption and scattering of light by small particles in the gas phase.

Persistent Link:
http://hdl.handle.net/10150/187030
Title:
A spectrographic study of the absorption and scattering of light by small particles in the gas phase.
Author:
Anderson, Emmet Raymond.
Issue Date:
1994
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A new technique for studying small particles optically in the laboratory is described. A modern spectrograph using an image intensifier tube coupled to a CCD as a detector provides sensitivity comparable to that of a spectrometer using a photomultiplier tube, while preserving the advantages of a spectrograph. Using the instrument, small particles of sodium were studied in light scattering in the gas phase, and gas phase extinction measurements were made of magnesium, carbon, and C₆₀ (Buckminsterfullerene). In the scattering spectra of sodium, the ability of a spectrograph to image along the slit was used to simultaneously observe along a cross section of a small particle cloud, so it was possible to record the transition from the atomic vapor to diatomic sodium to small particles to larger particles. The gas phase surface plasmon feature of magnesium appeared quite different from previous measurements of particles collected on a substrate. On the other hand the spectra of carbon appeared to be quite similar to measurements on a substrate. The measurements of C₆₀ appear to be of the molecular vapor rather than of small particles.
Type:
text; Dissertation-Reproduction (electronic)
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Physics; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Huffman, Donald R.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleA spectrographic study of the absorption and scattering of light by small particles in the gas phase.en_US
dc.creatorAnderson, Emmet Raymond.en_US
dc.contributor.authorAnderson, Emmet Raymond.en_US
dc.date.issued1994en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA new technique for studying small particles optically in the laboratory is described. A modern spectrograph using an image intensifier tube coupled to a CCD as a detector provides sensitivity comparable to that of a spectrometer using a photomultiplier tube, while preserving the advantages of a spectrograph. Using the instrument, small particles of sodium were studied in light scattering in the gas phase, and gas phase extinction measurements were made of magnesium, carbon, and C₆₀ (Buckminsterfullerene). In the scattering spectra of sodium, the ability of a spectrograph to image along the slit was used to simultaneously observe along a cross section of a small particle cloud, so it was possible to record the transition from the atomic vapor to diatomic sodium to small particles to larger particles. The gas phase surface plasmon feature of magnesium appeared quite different from previous measurements of particles collected on a substrate. On the other hand the spectra of carbon appeared to be quite similar to measurements on a substrate. The measurements of C₆₀ appear to be of the molecular vapor rather than of small particles.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplinePhysicsen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairHuffman, Donald R.en_US
dc.contributor.committeememberBickel, William S.en_US
dc.contributor.committeememberLeavitt, John A.en_US
dc.contributor.committeememberKohler, Sigurden_US
dc.contributor.committeememberEmrick, Roy M.en_US
dc.identifier.proquest9527992en_US
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