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Optics Letters|June 2, 2015
On a propagation-invariant, orthogonal modal expansion on the unit disk: going beyond Nijboer-Zernike theory of aberrationsOmar El GawharyApplied Optics|July 22, 2008
Comment on "Quality of paraxial electromagnetic beams"Omar El Gawhary, Sergio SeveriniOptics Letters|August 19, 2008
Dependence of the degree of paraxiality on field correlationsOmar El Gawhary, Sergio SeveriniOptics Letters|June 17, 2008
Degree of paraxiality for monochromatic light beamsOmar El Gawhary, Sergio SeveriniJournal of the Optical Society of America. A, Optics, Image Science, and Vision|March 9, 2010
On the nonparaxial corrections of Bessel-Gauss beamsOmar El Gawhary, Sergio SeveriniApplied Optics|April 18, 2017
Nonlinearity characterization of array spectroradiometers for the solar UV measurementsTomi Pulli, Saulius Nevas, Omar El Gawhary, et al.Optics Express|October 17, 2014
Reconstruction of sub-wavelength features and nano-positioning of gratings using coherent Fourier scatterometryNitish Kumar, Peter Petrik, Gopika K P Ramanandan, et al.Pageof 1