TY - GEN AU - Alexeev,Ilya AU - Wu,Ji AU - Karg,Michael AU - Zalevsky,Zeev AU - Schmidt,Michael TI - Determination of laser beam focus position based on secondary speckles pattern analysis SN - 1539-4522 PY - 2018///0205 N1 - Publication Type: Journal Article UR - https://doi.org/10.1364/AO.56.007413 ER -