EntityQ1230543· pop 11· linked from 42 articlesBeam divergenceSign in to savehow much a beam expands as it travelsConnectionsInternational Standard Book NumberEntityopticsEntityelectromagnetismEntitylaserEntityradiusEntitywavelengthEntitylensEntitydegreeEntityelectromagnetic spectrumEntityfocusEntityapertureEntityradio frequencyEntityGaussian beamEntitymilliradianEntitycollimated lightEntitydiffraction-limited systemEntityNear and far fieldEntityF. J. DuarteEntityantenna effective areaEntityCategoriesAntennas (radio)Optical quantities