White-light scanning interferometer for absolute nano-scale gap thickness measurement

A special configuration of white-light scanning interferometer is described for measuring the absolute air gap thickness between two planar plates brought into close proximity. The measured gap is not located in any interference arm of the interferometer, but acts as an amplitude-and-phase modulator...

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Bibliographic Details
Main Authors: Xu, Zhiguang (Contributor), Youcef-toumi, Kamal (Author), Yoon, Soon Fatt (Author), Shilpiekandula, Vijay 1979- (Author)
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering (Contributor), Singapore-MIT Alliance in Research and Technology (SMART) (Contributor), Shilpiekandula, Vijay (Contributor), Youcef-Toumi, Kamal (Contributor)
Format: Article
Language:English
Published: Optical Society of America, 2013-07-26T16:31:58Z.
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