Guia docente 2015_16 Facultade de Ciencias

Máster Universitario en Fotónica e Tecnoloxías do Láser

Biomedical Applications of Lasers: Physical Fundamentals

Contents

Topic	Sub-topic
Laser-Tissue interactions	Introduction. Radiation-Matter interaction. Modelization: Photonic migration.
Physical principles of the therapeutic use of the lasers	Mechanisms of laser-tissue interactions. Laser-tissue interactions at molecular level: Photochemical interactions. Photothermal interactions. Photoablation. Ablation induced by reflection. Photodisruption. Optical tweezers. Applications.
The lasers in the instrumentation *optoelectrónica for diagnostic no invasive	Confocal microscopy. Oftalmic laser scanning. Optical coherence tomography (OCT). Laser spectroscopy (by absorption, reflection, split induced, Raman, fluorescence). Doppler velocimetry. Tomography. Interferometry by point diffraction.
Technologies for transformation and control of laser beams	Beam transformation. Adaptive optics (AO). Stars guide laser. Basic AO of the human eye. Wavefront sensing. Elements and devices for compensation of aberrations: plates of phase, deformable mirrors, light modulators. Biological systems of adpative optics.
Applications in Vision Science	Measure of the optical quality of the eye: Metric of optical quality. Scheiner's disk. Refractometry with space resolution. Laser ray tracers. Aberrometers of Tscherning. Hartmann-Shack aberrometers. Image of high space resolution: Helmholtz oftalmoscope. High resolution bottom-eye cameras. Laser scanning confocal oftalmoscopes of high resolution. OCT of high resolution.
Introduction to laser security	It deals with...?. Relevant properties of lasers. Mechanisms of damage. Dangers for the eye. Dangers for the skin. Security standards. Ranking of dangerous lasers. Warning signals. Danger and risk: how focus on security. Controls of engineering, and administrative personal. Why are produced the accidents with lasers? Laser security in different fields.