Understanding optical propagation through atmospheric turbulence is a highly important step for the efficient implementation of a free space laser communication system and for achieving diffraction limited imaging over ...

Advances in technology has provided means for astronomical optical telescopes to increase the aperture diameter (more light collecting capability) therefore increasing the resolution. Better resolution allows telescopes ...

Se diseñaron programas en Matlab, que aplican el método de fotometría de apertura diferencial, a dos imágenes tomadas con un dispositivo de carga acoplada (CCD) en los filtros visible V y azul B, para calcular los parámetros ...

In a long baseline stellar interferometer, the optical beams are guided over several hundred meters by steering mirrors and generally propagated under vacuum. There is an urgent requirement to provide a simple mechanism ...

This thesis describes the design and manufacture of a non-conventional diffraction grating, referred to as a Defocus Grating. It was designed by adding to the equation of the lines of a standard grating, a function of ...

This thesis work, developed at the laboratories of the Department of Physics of the University of Puerto Rico, reports the first efforts to build a prototype stellar interferometer with applications to stellar astrophysics. ...