2015/11/03 by Allam, Srinivasa Rao, Mudasir H. Dar, Dar, Mudasir H +8
Chemistry · Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Fluid dynamics and aerodynamics studies #Optics (physics.optics) #Photochemistry and Electron Transfer Studies #Photorefractive and Nonlinear Optics #Planetary Science and Exploration #Porphyrin and Phthalocyanine Chemistry #Scientific Research and Discoveries
paper · pdf · doi:10.48550/arxiv.1511.00814
openalex publication_date 2015/11/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Self-diffraction rings or spatial self-phase modulation (SSPM) was observed in tetra-phenyl porphyrin derivative 5,10,15,20 - meso-tetrakis (4-hydroxyphenyl) porphyrin (H2TPP(OH)4) doped in boric acid glass (BAG) at 671 nm excitation wave-length lying within the absorption band of sample with TEM00 mode profile. Intensity modulated Z-scan was performed on these systems to study the thermal diffusion and to estimate the thermo-optic coefficients. The results obtained from self-diffraction rings experiment and modulated Z-scan are compared and analyzed for different concentration.