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Showing 1 to 12 of 5454 entries
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Generalization of the geometric description of a light beam in radiometry and photometry.

Journal of the Optical Society of America. A, Optics, image science, and vision

Simonot L, Boulenguez P.
PMID: 23595317
J Opt Soc Am A Opt Image Sci Vis. 2013 Apr 01;30(4):589-95. doi: 10.1364/JOSAA.30.000589.

Radiometric and photometric quantities rely on a geometric description of the beam subtended by a source and a receptor. In this paper, a generalization of this description is proposed as the product of the apparent size of the source...

Increased sky coverage with optimal correction of tilt and tilt-anisoplanatism modes in laser-guide-star multiconjugate adaptive optics.

Journal of the Optical Society of America. A, Optics, image science, and vision

Correia C, Véran JP, Herriot G, Ellerbroek B, Wang L, Gilles L.
PMID: 23595319
J Opt Soc Am A Opt Image Sci Vis. 2013 Apr 01;30(4):604-15. doi: 10.1364/JOSAA.30.000604.

Laser-guide-star multiconjugate adaptive optics (MCAO) systems require natural guide stars (NGS) to measure tilt and tilt-anisoplanatism modes. Making optimal use of the limited number of photons coming from such, generally dim, sources is mandatory to obtain reasonable sky coverage,...

Transmittance constraints in serial decompositions of depolarizing Mueller matrices: the arrow form of a Mueller matrix.

Journal of the Optical Society of America. A, Optics, image science, and vision

Gil JJ.
PMID: 23595331
J Opt Soc Am A Opt Image Sci Vis. 2013 Apr 01;30(4):701-7. doi: 10.1364/JOSAA.30.000701.

The passivity of the linear components in the main approaches for serial decompositions of depolarizing Mueller matrices [J. Opt. Soc. Am. A13, 1106 (1996); J. Opt. Soc. Am. A26, 1109 (2009)] is dealt with, and it is found that...

Diffraction of convergent spherical waves with all possible polarization states using the Luneburg integral method.

Journal of the Optical Society of America. A, Optics, image science, and vision

Carretero L, Acebal P, Blaya S.
PMID: 23595335
J Opt Soc Am A Opt Image Sci Vis. 2013 Apr 01;30(4):733-40. doi: 10.1364/JOSAA.30.000733.

We present a complete electromagnetic study, which includes electric, magnetic, and Poynting vector fields of diffracted convergent spherical waves under all possible polarization states compatible with Maxwell's equations. Exit pupil boundary conditions for these polarizations were obtained by means...

Simulating channel losses in an underwater optical communication system.

Journal of the Optical Society of America. A, Optics, image science, and vision

Cox W, Muth J.
PMID: 24979623
J Opt Soc Am A Opt Image Sci Vis. 2014 May 01;31(5):920-34. doi: 10.1364/JOSAA.31.000920.

A Monte Carlo numerical simulation for computing the received power for an underwater optical communication system is discussed and validated. Power loss between receiver and transmitter is simulated for a variety of receiver aperture sizes and fields of view....

Diffraction tomography from intensity measurements: an evolutionary stochastic search to invert experimental data.

Journal of the Optical Society of America. A, Optics, image science, and vision

Teresa J, Venugopal M, Roy D, Vasu RM, Kanhirodan R.
PMID: 24979631
J Opt Soc Am A Opt Image Sci Vis. 2014 May 01;31(5):996-1006. doi: 10.1364/JOSAA.31.000996.

We develop iterative diffraction tomography algorithms, which are similar to the distorted Born algorithms, for inverting scattered intensity data. Within the Born approximation, the unknown scattered field is expressed as a multiplicative perturbation to the incident field. With this,...

Manifestation of Gouy phase anomaly in a coaxial focus array generated by a Dammann zone plate.

Journal of the Optical Society of America. A, Optics, image science, and vision

Yu J, Zhou C, Jia W, Wu J, Lu Y.
PMID: 24979638
J Opt Soc Am A Opt Image Sci Vis. 2014 May 01;31(5):1059-66. doi: 10.1364/JOSAA.31.001059.

Gouy phase anomaly of the coaxial focus array generated by a Dammann zone plate (DZP) was investigated. Based on Debye vectorial diffraction theory, the longitudinal-differential (LD) phase profile was presented in the focal region of a high numerical aperture...

Annular focusing lens based on transformation optics.

Journal of the Optical Society of America. A, Optics, image science, and vision

Xu BB, Jiang WX, Yu GX, Cui TJ.
PMID: 24979647
J Opt Soc Am A Opt Image Sci Vis. 2014 May 01;31(5):1135-40. doi: 10.1364/JOSAA.31.001135.

We propose and design a kind of annular focusing lens based on transformation optics. Based on the method of eigen-mode expansions, closed-form expressions are derived to analyze the proposed annular lens rigorously. We show that the annular lens has...

Symmetric form-invariant dual Pearcey beams.

Journal of the Optical Society of America. A, Optics, image science, and vision

Ren Z, Fan C, Shi Y, Chen B.
PMID: 27505650
J Opt Soc Am A Opt Image Sci Vis. 2016 Aug 01;33(8):1523-30. doi: 10.1364/JOSAA.33.001523.

We introduce another type of Pearcey beam, namely, dual Pearcey (DP) beams, based on the Pearcey function of catastrophe theory. DP beams are experimentally generated by applying Fresnel diffraction of bright elliptic rings. Form-invariant Bessel distribution beams can be...

Spherical aberration in electrically thin flat lenses.

Journal of the Optical Society of America. A, Optics, image science, and vision

Ruphuy M, Ramahi OM.
PMID: 27505651
J Opt Soc Am A Opt Image Sci Vis. 2016 Aug 01;33(8):1531-6. doi: 10.1364/JOSAA.33.001531.

We analyze the spherical aberration of a new generation of lenses made of flat electrically thin inhomogeneous media. For such lenses, spherical aberration is analyzed quantitatively and qualitatively, and comparison is made to the classical gradient index rod. Both...

Performance evaluation of modulation and multiple access schemes in ultraviolet optical wireless connections for two atmosphere thickness cases.

Journal of the Optical Society of America. A, Optics, image science, and vision

Raptis N, Pikasis E, Syvridis D.
PMID: 27505663
J Opt Soc Am A Opt Image Sci Vis. 2016 Aug 01;33(8):1628-40. doi: 10.1364/JOSAA.33.001628.

The exploitation of optical wireless communication channels in a non-line-of-sight regime is studied for point-to-point and networking configurations considering the use of light-emitting diodes. Two environments with different scattering center densities are considered, assuming operation at 265 nm. The...

Global color estimation of special-effect coatings from measurements by commercially available portable multiangle spectrophotometers.

Journal of the Optical Society of America. A, Optics, image science, and vision

Ferrero A, Campos J, Perales E, Martínez-Verdú FM, van der Lans I, Kirchner E.
PMID: 26366484
J Opt Soc Am A Opt Image Sci Vis. 2015 Jan 01;32(1):1-11. doi: 10.1364/JOSAA.32.000001.

Colors of special-effect coatings have strong dependence on illumination/viewing geometry and an appealing appearance. An open question is to ask about the minimum number of measurement geometries required to completely characterize their observed color shift. A recently published principal...

Showing 1 to 12 of 5454 entries