Reconstruction of longitudinal distributed incoherent sources
نویسندگان
چکیده
منابع مشابه
Reconstruction of longitudinal distributed incoherent sources.
We describe measurement of the degree of coherence induced by a random light source distributed along the longitudinal z axis. If this degree of coherence is measured only between all the in-plane pairs of points placed along the radial lines it is proportional to the Fourier transform of the source's three-dimensional intensity distribution as seen from the paraxial far zone. A reconstruction ...
متن کاملExperimental Field Reconstruction of Incoherent Sources
The problem of characterizing random sources from near-field measurements and of devising the random field sampling procedure is tackled by a stochastic approach. The presented technique is an extension of that introduced in [22] and successfully adopted to experimentally characterize deterministic (CW and multi-frequency) radiators and fields. Under the assumption that the source is wide sense...
متن کاملCoherence patterns originating from incoherent volume sources.
We derive the complex degree of coherence that originates from generalized incoherent two- and three-dimensional sources. Further, we find the locus of maximum coherence and analyze the dependence of the decay of coherence on source thickness.
متن کاملFast Reconstruction from Random Incoherent Projections
The Compressed Sensing paradigm consists of recovering signals that can be sparsely represented in a given basis from a small set of projections into random vectors; the problem is typically solved using an adapted Basis Pursuit algorithm. We show that the recovery of the signal is equivalent to determining the sparsest representation of the measurement vector using the dictionary obtained by a...
متن کاملSemiclassical Theory of Superresolution for Two Incoherent Optical Point Sources
Lord Rayleigh suggested in 1879 that two incoherent optical point sources should be separated by a diffraction-limited spot size for them to be resolved [1]. This criterion has since become the most influential measure of imaging resolution. Under the modern advent of rigorous statistics and image processing, Rayleigh’s criterion remains a curse. When the image is noisy, necessarily so owing to...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Letters
سال: 1996
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.21.001803