Santhi, A Investigation of optical interaction processes in certain photonic materials using Z-scan and thermal lens techniques(Thesis) Santhi, A;guided by V.P.N. Nampoori and P. Radhakrishnan - Kochi International School of Photonics, Cusat 2006. - 155p. Subjects--Index Terms: Nonlinear optics Nonlinear refraction-metal phthalocyanines Thermal lens technique Universal Decimal Class. No.: 535 / SAN T