Results 221 to 230 of about 34,564 (258)
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Design of diffractive axicons for partially coherent light
Optics Letters, 1998We propose a novel method of designing diffractive axicons for use in spatially partially coherent illumination. The design procedure is based on the results obtained by the stationary-phase method. The technique leads to a coherence-dependent differential equation with appropriate boundary conditions for the axicon phase function.
S Y, Popov, A T, Friberg
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Two-Point Resolution with Partially Coherent Light*
Journal of the Optical Society of America, 1967The two-point resolution problem has been discussed previously using the Sparrow criterion. However, this masks the real changes of the image structure as the degree of coherence between the two points changes. The only measurable quantity is, of course, the separation between the two object points.
D N, Grimes, B J, Thompson
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Focusing of Partially Coherent Light
1996The focusing of fully coherent waves has been studied extensively over a period of many years.1 However, much less work has been done on the focusing of partially coherent fields. In fact, no satisfactory theory covering this subject exists. In the present paper we introduce a simple model for the analysis of problems of this kind.
Weijian Wang, Ari T. Friberg, Emil Wolf
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CGH based on partially coherent light
AOPC 2019: Display Technology and Optical Storage, 2019A new expression of partially coherent light is derived. The formula of the partially coherent optical field is consisted of two terms: spatially coherent part propagated by angular spectrum and incoherent part based on the optical transfer function. Both parts are related to coherent function (degree of coherence).
Junyi Duan +5 more
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The Wigner Distribution Function of Partially Coherent Light
Optica Acta: International Journal of Optics, 1981The concept of the Wigner distribution function is applied to stochastic signals, in particular to partially coherent light. Relations between the Wigner distribution function, the power spectrum and related subjects are formulated. Some inequalities for the Wigner distribution function are derived; one of these inequalities leads to the definition of ...
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A scattering experiment with partially coherent light
Optics Communications, 1990A scattering experiment is described in which the spatial coherence properties of the incident light can be changed. The effect of spatial coherence on the angular distribution of the scattered radiation is studied. The results agree with the predictions of a recent analysis of this phenomenon [J. Jannson, T. Jannson and E.
Gori F, Palma C, SANTARSIERO, Massimo
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Thermodynamic Entropy of Partially Coherent Light Beams
Journal of the Physical Society of Japan, 1964The thermodynamic entropy of partially coherent light beams, as shown by M. von Laue, is given by the sum of the entropy of the principal waves, which represent the given light beams and are statistically independent of each other. The principal waves and their intensities are respectively the eigenfunctions and eigenvalues of the mutual intensity ...
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Fourier Transformation in Partially Coherent Light
Optica Acta: International Journal of Optics, 1975Fourier transformation in partially coherent light has been theoretically studied. It is shown that the intensity distribution at the back focal plane of a lens when a transparency located at the front focal plane and illuminated by a partially space coherent light is given by the convolution of the Fourier transform of mutual intensity function and ...
R.S. Sirohi, V. Ram Mohan
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Radiance Theorem with Partially Coherent Light
Optica Acta: International Journal of Optics, 1986The transmission of a generalized radiance across a planar boundary separating two homogeneous media is considered. It is assumed that the optical field remains continuous at the interface and reflection is neglected. A result is obtained which may be regarded as a generalization of the conventional radiance theorem for fields of any state of coherence.
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On the Partial Coherence Theory for Nonstationary Light
1996We offer a tentative contribution to the solution of problems that involve the use of nonstationary fields, based on the idea that the light spectrum of a nonstationary source can be considered an ensemble of correlated monochromatic components. We then apply this idea, considering that a reciprocal correspondence exists for the coherence of light in ...
Leonid Sereda +2 more
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