Estle, Thomas L.2018-12-182018-12-181974Ang, Dick. "Laser induced refractive index changes in lithium niobate doped with cobalt." (1974) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/103923">https://hdl.handle.net/1911/103923</a>.https://hdl.handle.net/1911/103923Text includes handwritten formulasThe optical spectra of lithium niobate doped with cobalt were observed at room temperature and 77K. The absorption bands were identified using a theoretical energy level diagram. EPR spectra were obtained at 9 GHz and 4.2K. The observed spectra were explained with an axial spin Hamiltonian with an effective spin of 1/2. Holographic techniques were used to measure the laser-induced refractive index change at 514.5 and 488. nm. The holographic equipment and its operation are described in some detail.153 ppengCopyright 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.ThesisRICE1549reformatted digitalThesis Phys. 1974 Ang