Abstract

A recently reported interferometric technique using a femtosecond optical frequency comb is modified to observe the destructive interference between two pairs of pulse trains with different relative delays. Experimental observation of the destructive interference shows that the present technique may offer a significantly different possibility to reduce the unnecessary reflections. This technique can be applied not only to surface profilometry and tomography but also to optical superresolution metrology.

© 2009 Optical Society of America

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