Forward scattering in two-beam laser interferometry

Measuring the deposited energy from a non-ionizing laser beam in water by digital holographic interferometry

Digital Holographic interferometry is a powerful and widely used optical technique for accurate measurement of variations in physical quantities such as density, refractive index, and etc. In this study, an experimental digital holographic interferometry setup was designed and used to measure the amount of energy changes induced by absorption of radiation from a non-ionizing infrared laser beam...

Coherent forward stimulated-brillouin scattering of a spatially incoherent laser beam in a plasma and its effect on beam spray.

A statistical model for forward stimulated-Brillouin scattering is developed for a spatially incoherent, monochromatic, laser beam propagating in a plasma. The threshold above which the laser beam spatial incoherence cannot prevent the coherent growth of forward stimulated-Brillouin scattering is computed. It is found to be well below the threshold for self-focusing. Three-dimensional simulatio...

Interferometry: Principles and Applications of Two-beam and Multiple- Beam Interferometry

Interaction of Laser Beam and Gold Nanoparticles, Study of Scattering Intensity and the Effective Parameters

 In this paper, the optical properties of gold nanoparticles investigated. For this purpose the scattering intensity of a laser beam incident on gold nanoparticles has been studied using Mie theory and their respective curves versus different parameters such as scattering angle, wavelength of the laser beam and the size of gold nanoparticles are plotted. Investigating and comparison of the depi...

Detecting the Photon-Photon Interaction by Colliding Laser Beam Interferometry

The feasibility of detecting the photon-photon interaction using Fabry-Perot type laser interferometers developed for gravity wave detection is demonstrated. An “external” laser beam, serving as a refractive medium, is alternatively fed into the cavities of the interferometer and made to collide with the “internal” beams thereby inducing a measurable phase difference between them. [hep-ph/93082...