TY  - RPRT
TI  - Phase-shifting apodizers for increasing focal depth.
AU  - Haifeng Wang
AU  - Fuxi Gan
PY  - 2002
DO  - 10.1364/ao.41.005263
UR  - https://pubmed.ncbi.nlm.nih.gov/12211552/
ID  - 12211552
ER  -