Real-time surface profile measurement using a feedback type of sinusoidal phase modulating interferometer

Optik ◽  
2009 ◽  
Vol 120 (11) ◽  
pp. 553-557 ◽  
Author(s):  
He Guotian ◽  
Liao Changrong ◽  
Jiang helun ◽  
Yuangang Lu ◽  
Huang Shanglian
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