TY  - BOOK
AU  - DAS,Pankaj.k
TI  -  Lasers and optical engineering
SN  - 8185198802
U1  - 621.366 
PY  - 1991///
CY  - NewDelhi
PB  - Narosa
N1  - geometrical  optics--interference--holoraphy--detection--coherence-- q switching and mode locking
ER  -