ISBN: 9786135480757 (3 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 152 pp. Englisch.

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. An optical vortex(also known as a screw dislocation or phase singularity) is a zero of anoptical field, a point of zero intensity. Research into the propertiesof vortices has thrived since a comprehensive paper by Nye and Berry, in1974, described the basic properties of 'dislocations in wave trains'.The research that followed became the core of what is now known as'singular optics'. Light can be twisted like a corkscrew around its axisof travel. Because of the twisting, the light waves at the axis itselfcancel each other out. When projected onto a flat surface, an opticalvortex looks like a ring of light, with a dark hole in the center. Thiscorkscrew of light, with darkness at the center, is called an opticalvortex. The vortex is given a number, called the topological chargeaccording to how many twists the light does in one wavelength. Thenumber is always an integer, and can be positive or negative, dependingon the direction of the twist.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 152 pp. Englisch.