Axial sub-Fourier focusing of an optical beam

Thomas Zacharias, Barak Hadad, Alon Bahabad, Yaniv Eliezer*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We demonstrate experimentally the generation of an optical beam having an axial focusing that is narrower than the Fourier limit. The beam is constructed from a superposition of Bessel beams with different longitudinal wave vectors, realizing a super-oscillatory axial intensity distribution. Such beams can be useful for microscopy and for optical particle manipulation.

Original languageEnglish
Pages (from-to)3205-3208
Number of pages4
JournalOptics Letters
Issue number16
StatePublished - 15 Aug 2017


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