No description available.

Proefschrift--Universiteit van Amsterdam. / In English. Thesis statement and summary in Dutch. Includes bibliographical references (p. [52]).

Proefschrift Universiteit van Amsterdam. / Met lit.opg.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1968. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

The electronic emission spectra of the CO molecule in an applied electric field of 53.8 kilovolts/cm has been observed. The electric field was determined from the Stark Effect on the H line at 4340Å. The spectra were produced in the high field region of a low pressure glow discharge using carbon monoxide gas and water vapour. The electric dipole moment of the CO molecule has been determined for the BlΣ+ state using the P(l) transition of the Ångstrom ( 0 , 0 ) band. The effect observed is a second order effect in the B1Σ+ state and it has been deduced that the dipole moment of the A1π state is very small or zero. The dipole moment of the B1Σ+ state is 1.61 debye ± 14%. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

In this thesis, we investigate the optical properties of m-plane InGaN/GaN multiple quantum well grown by metal organic vapor phase epitaxy. The optical spectroscopies we employed are photoluminescence (PL), polarized PL, power-dependent PL, photoluminescence excitation (PLE), polarized PLE, and Raman scattering. From the blue shift of E2 mode in Raman spectrum, we find that the epitaxial layers are under compressive stress. The PL spectrum at 10 K is dominated by the emission band peaked at 433 nm. We found the optical emission possesses the polarization anisotropy. The degree of polarization is about 80% at room temperature. It is found that the degree of polarization decreases with increasing temperature, which may be explained by carrier population effect. In addition, two major contributions to the PLE spectrum detected for the emission band have identified. Finally, the absence of quantum confined Stark effect is confirmed by power-dependent PL measurements.

No description available.

Akademische abhandlung--Lund. / Extra t.p., with thesis note, inserted. Imprint on cover: Lund, Gleerupska univ.-bokhandeln.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1971. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.

This experiment was aimed at the determination of the dipole moment of the diatomic molecule HC1⁺ (in the ²π½ state). The method was to observe the Stark splitting optically by using a 3.4 meter Jarrell ash spectrograph. The charged diatomic molecule was obtained by passing HCl gas through a LoSurdo discharge tube in which a high electric field was applied; optical plates were obtained from the spectrograph and analysed. Dipole moment of HC1⁺ in the ²π½ state was found to be smaller than 0.8 debye. / Science, Faculty of / Physics and Astronomy, Department of / Graduate