Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Zu-Han Gu"'
Autor:
Zu-Han Gu, Anting Wang
Publikováno v:
Waves in Random and Complex Media. 19:535-542
In this paper, we report a recent design of an optical feedback technique for the setup of Collett–Wolf beam, which is a partially coherent source that can produce a field as directional as a laser. A large Goos–Haenchen shift mirror is studied.
Publikováno v:
Waves in Random Media. 7:435-456
Experimental results are presented for the angular correlation function of far-field speckle patterns scattered in the double passage of waves through a one-dimensional random phase screen. The experiment for the correlation measurement was set up to
Publikováno v:
Applied optics. 34(18)
It has been known theoretically for a few years that not only a rough metallic surface but also a rough dielectric surface can produce an enhanced backscattering peak. Because of difficulty in the fabrication of one- or two-dimensional rough dielectr
Autor:
Tamara A. Leskova, Eugenio Rafael Mendez Mendez, Zu Han Gu, E. E. García-Guerrero, Alexei A. Maradudin
Publikováno v:
Reflection, Scattering, and Diffraction from Surfaces II.
We present results describing the evolution of a beam radiated into the region x 3 > 0 by a Schell-model source in the plane x 3 = 0. This source is characterized by the cross-spectral density W (0) (x ∥ ,0|x' ∥ ,0) = [S (0) (x ∥ )] 1/2 g (0) (
Autor:
Leonard M. Hanssen, Zu-Han Gu
Publikováno v:
Reflection, Scattering, and Diffraction from Surfaces II.
Autor:
Zu-Han Gu
Publikováno v:
Reflection, Scattering, and Diffraction from Surfaces II.
We have studied the interference of light produced by a pair of circularly symmetric Collett-Wolf beams, and found that the output radiation from the interferometer in the far-field is a beam with an intensity distribution that displays a narrow brig
Autor:
Zu-Han Gu, Anting Wang
Publikováno v:
Reflection, Scattering, and Diffraction from Surfaces II.
Recently, we have undertaken an experimental study of nonstandard refraction of light from one- and twodimensional dielectric quasi-periodic surfaces. The mechanism underlying this effect is the large local slope of the quasi-periodic surface.
Publikováno v:
Applied optics. 30(28)
An optical method of fabricating randomly rough one-dimensional surfaces is described. The variations in the surface profile are produced by exposing photoresist-coated plates to a narrow line of light and scanning them under computer control. A theo
Autor:
Richard S. Dummer, Zu-Han Gu
Publikováno v:
Applied optics. 29(28)
Small angle scattering in and near the specular direction has recently been measured with a monostatic laser interferometric reflectometer for a laser beam incident normal to the surface. Employing the Ricean statistics of the amplitude distribution