Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Anthony M. Tai"'
Autor:
Claes-Göran Granqvist, Anthony M. Tai
Publikováno v:
Spectrally Selective Surfaces for Heating and Cooling Applications.
Publikováno v:
Applied optics. 28(13)
A design method is presented for computing the phase functions of an energy efficient system using two holographic elements for converting a Gaussian beam into a uniform beam with rectangular support in the far field of the source. The method is base
Autor:
Jack N. Cederquist, Anthony M. Tai
Publikováno v:
Applied optics. 26(23)
In real-time speckle imaging and speckle interferometry, there is often the need to remove a nonuniform incoherent background from the detected image to enhance the embedded coherent speckle image. Previous approaches generally require the use of a r
Autor:
Anthony M. Tai, Francis T. S. Yu
Publikováno v:
Applied optics. 18(15)
Autor:
Francis T. S. Yu, Anthony M. Tai
Publikováno v:
Applied optics. 18(15)
A technique of incoherent image addition and subtraction is described. The basic advantage of this technique is its use of white light processing, in which case the unavoidable artifact noise in the coherent optical processor may be removed. Although
Autor:
Anthony M. Tai, Francis T. S. Yu
Publikováno v:
Applied optics. 18(4)
Nonlinearity of the film characteristics is a major problem in optical spectrum analysis with density modulation. The problem of nonlinearity can be avoided by using area modulation due to its binary recording format. The feasibility of using area mo
Publikováno v:
Applied optics. 18(1)
Autor:
Anthony M. Tai, Francis T. S. Yu
Publikováno v:
Applied optics. 17(15)
The H-D curve is the most commonly used method to describe film characteristics. However, in many applications of coherent optics, the use of the H-D curve is not appropriate because the linear region of the T-E curve is used instead. In this paper,
Publikováno v:
Applied optics. 16(9)
Linear optical spatial filtering cannot be effectively applied to multiplied and convolved signals. One approach is to first perform a logarithmic transformation to produce a signal in additive form suitable for linear filtering processes [ A. V. Opp
Autor:
Francis T. S. Yu, Anthony M. Tai
Publikováno v:
Applied optics. 16(5)
A technique using complementary sampling in the reconstruction process is proposed for speckle reduction in holographic imaging. This method would not suffer the resolution reduction experienced with the simple random sampling method that has been pr