1. Heterodyne interferometer for measuring surface profiles;Shagam;J Opt Soc Am,1977
2. Phase measurement interferometry techniques;Creath,1998
3. Phase locked interferometry;Johnson;Opt Eng,1979
4. Phase locked laser diode interferometry for surface profile measurement;Suzuki;Appl Opt,1989
5. Direct, unambiguous display of phase-difference using optical feedback to a phase-only spatial light modulator;Barnes;Optick,1995