Zobrazeno 1 - 10
of 79
pro vyhledávání: '"R.M. Sillitto"'
Autor:
S. Heddle, R.M. Sillitto
Publikováno v:
Journal of Modern Optics. 40:299-313
When a pixellated spatial light modulator (SLM) is used in an optical processor, replicated images occur in the output due to the underlying regular pixel structure of the SLM. These replicas arise through convolution with distinct spectral orders in
Publikováno v:
Applied optics. 28(22)
The construction of a 50- x 50-pixel spatial light modulator based on an active silicon backplane and using the hybrid field effect in nematic liquid crystals as the light modulating process is described. The design and electrical evaluation of the p
Publikováno v:
SPIE Proceedings.
Replication in the output plane of an optical correlator, due to pixelation of the Fourier plane filter, can lead to false correlation signals. This paper suggests randomization of the pixel positions of the Fourier plane filter as a solution, and de
Autor:
George Bradford, M. J. Birch, William A. Crossland, David G. Vass, Adrian P Sparks, Adil O. Al-Chalabi, Ian Underwood, R.M. Sillitto, Steve G. Latham, N. E. Fancey
Publikováno v:
SPIE Proceedings.
The development of a ferroelectric liquid-crystal-over-single-crystal-silicon spatial light modulator is described. The reflective SLM has an array of 176 X 176 pixels over a clear aperture of 5.28 mm X 5.28 mm. Prototype devices driven from a specia
Autor:
R.M. Sillitto, Duncan J. Potter, Michael J. Ranshaw, N. E. Fancey, David G. Vass, Adil O. Al-Chalabi
Publikováno v:
SPIE Proceedings.
The construction and principle of operation of a liquid-crystal-over an MOS- array spatial light modulator (SLM) is described. Photographs are presented of patterns produced by amplitude-only modulation of monochromatic light by the SLM when used in
Autor:
R.M. Sillitto
Publikováno v:
Journal of Modern Optics. 39:663-664
Publikováno v:
Optica Acta: International Journal of Optics. 26:1125-1128
A photon-coincidence counting technique has been used to observe the second-order coherence in a plane receiving light from two small incoherently illuminated apertures. Measurements made for two wavelengths, 546·1 and 435·8 nm, gave results consis
Autor:
Winifred Sillitto, R.M. Sillitto
Publikováno v:
Optica Acta: International Journal of Optics. 22:999-1010
The amplitude distribution in the scalar far-field approximation is derived as a simple expression, involving only sinc functions, in terms of two non-orthogonal coordinates related to the lengths and directions of two sides of the triangle. Photogra
Autor:
R.M. Sillitto
Publikováno v:
Optica Acta: International Journal of Optics. 30:1525-1540
The moment theorem is used to show that the innermost part of the Fraunhofer diffraction pattern of any real aperture with higher than two-fold rotational symmetry is rotationally invariant. Then a formalism is presented in which aperture transmissio
Autor:
Eric C. Kintner, R.M. Sillitto
Publikováno v:
Optica Acta: International Journal of Optics. 23:607-619
Using a series expansion in Zernike polynomials to express the pupil function of an optical system, a means for computing the Optical Transfer Function has been found which avoids explicit numerica...