Nicholas DiPreta Lasers and Optics
Optics • Science of light • How light behaves and interacts with matter
Laser • Light Amplification by Stimulated Emission of Radiation • Cavity, with plane or spherical mirrors at the ends, that is filled with lasable material
Laser Lab Study Option (1) • Optical Tweezers • momentum of photons in a focused laser beam to exert a force on and ultimately trap microscopic particles • Manipulate microscopic matter • DNA
Optical Vortices (2) • beams of light with helical wave fronts that resemble a corkscrew • used in optical tweezers –torque • quantum computing - ability to represent more than two logical states.
Variable Lens • Ex: liquid lens • Could help to enable ground based telescopes to view more accurate images • Variable lenses affect the wave front aberrations
Bib. • C. Rotschild, S. Zommer, S. Moed, O. Hershcovitz, and S.G. Lipson, ``Adjustable Spiral Phase Plate,'' Applied Optics, April 2004. • M.W.Beijersbergen et al., Optics Commun. 96 (1994) p. 123. • http://laser.physics.sunysb.edu/- LTC