Acta Optica Sinica, Volume. 5, Issue 8, 744(1985)
A method of speckle interferometry with continually adjustable shearing amount
A kind of enciroled-circular double wedge (E-CDW), in which shearing amount could be varied continually, is recommended for speckle shearing interferometry. A "shearing vector" is introduced to analyse the related principle. Experimental (results show that the quality of fringe patterns at the border of viewing field can be improved considerably.
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YAO GANG. A method of speckle interferometry with continually adjustable shearing amount[J]. Acta Optica Sinica, 1985, 5(8): 744