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Studies on Absorptive Transitions Between Rotational Sublevels of Symmetric-Top Molecules in a Static Electric Field

Citation

Thiene, Paul George, Jr. (1952) Studies on Absorptive Transitions Between Rotational Sublevels of Symmetric-Top Molecules in a Static Electric Field. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:04172018-105411908

Abstract

The topic of this research is the hitherto uninvestigated absorption of electromagnetic energy by polar symmetric-top molecules in a static electric field, which arises by virtue of direct transitions between sublevels of a single rotational state. A short theoretical treatment of the Stark effect of a rigid molecule is included. The factors governing the absorption of quanta from the surrounding radiation field are discussed in a rudimentary derivation of a formula for the maximum linear absorption coefficient of a gas.

A new microwave Stark-effect spectrometer constructed for an exploratory investigation is described. The instrument operates in an unusual manner whereby the spectral position of the absorption line is varied, while the frequency of the incident radiation is held fixed. Included also is a treatment of the factors which determine and limit the sensitivity of the spectrometer.

Experiments which strongly indicate the existence of these field-created absorption lines are reported.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Electrical Engineering
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Pickering, William Hayward (advisor)
  • Yost, Don M. (co-advisor)
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1952
Record Number:CaltechTHESIS:04172018-105411908
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:04172018-105411908
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10809
Collection:CaltechTHESIS
Deposited By: Benjamin Perez
Deposited On:17 Apr 2018 18:17
Last Modified:17 Apr 2018 18:17

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