TY  - RPRT
TI  - Different models for a hard-aperture function and corresponding approximate analytical propagation equations of a Gaussian beam through an apertured optical system.
AU  - Haidan Mao
AU  - Daomu Zhao
PY  - 2005
DO  - 10.1364/josaa.22.000647
UR  - https://pubmed.ncbi.nlm.nih.gov/15839271/
ID  - 15839271
ER  -