TY  - RPRT
TI  - Diffraction-free beams.
AU  - J Durnin
AU  - J Miceli
AU  - JH Eberly
PY  - 1987
DO  - 10.1103/physrevlett.58.1499
UR  - https://pubmed.ncbi.nlm.nih.gov/10034453/
ID  - 10034453
ER  -