%0 Journal Article %T Fabrication of a simple and easy-to-make piezoelectric actuator and its use as phase shifter in digital speckle pattern interferometry %A Naser Partovi Shabestari %A Rashidian Vaziri, Mohamad Reza %A Mahmood Bakhshandeh %A Isa Alidokht %A Younes Alizadeh %J Journal of Optics(India) %@ 0972-8821 %D 2019