Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2013 · 251 citations · 0 references
Natural SciencesMaterials SciencePhysicsNucleic Acid ChemistryOptical MaterialsSpectroscopyFluorescence SpectroscopyNonlinear Optical MaterialsNonlinear OpticsOptical SpectroscopyPhotochromic MaterialsRefractive IndexDye LasersFemtosecond Laser PulsesMolecular Nonlinear OpticsNonlinear Optical PropertiesNonlinear Refractive IndexNonlinear SpectroscopyNucleic Acid FluorescenceOptical Properties
In this paper, we show our preliminary results in the investigation of the nonlinear optical properties of dye sensitized DNA. We are measuring the nonlinear refractive indices of the DNA with cetyltrimethylammonium (CTMA) surfactant, doped with Rhodamine 610 dissolved in butanol. The measurements are made using the Double Z-Scan method using a femtosecond laser at 1030nm as light source working in mode-locked and un-mode-locked regime respectively for discriminating fast nonlinearities from the slow ones.