Propagation characteristics of silver and tungsten subwavelength annular aperture generated sub-micron non-diffraction beams

Cheng, T.-D.T.-D.ChengLin, D.-Z.D.-Z.LinYeh, J.-T.J.-T.YehLiu, J.-M.J.-M.LiuYeh, C.-S.C.-S.YehCHIH-KUNG LEE2020-04-282020-04-282009https://scholars.lib.ntu.edu.tw/handle/123456789/486207Propagation characteristics of silver and tungsten subwavelength annular aperture generated sub-micron non-diffraction beamsjournal article10.1364/OE.17.0053302-s2.0-65249132304https://www.scopus.com/inward/record.uri?eid=2-s2.0-65249132304&doi=10.1364%2fOE.17.005330&partnerID=40&md5=d16ae97822696c2a0c4b9124d3a8826a