We demonstrate a noninvasive optical microscopy technique based on polarization-dependent second harmonic generation for determining the crystal lattice structure and microscopic heterogeneities within individual nanostructures. Differentiation between periodically twinned and wurtzite ZnSe nanowires (NWs) was demonstrated, and measurement of the cubic lattice rotation orientation around the NW axis was determined within 1° accuracy. Zinc blende NWs were differentiated from wurtzite. The technique can be used for quality inspection and optimization of growth conditions for nanostructures.
Richard Cisek, Danielle Tokarz, Nehad Hirmiz, Ankur Saxena, Alexander Shik, Harry E Ruda and Virginijus Barzda
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Richard Cisek, Danielle Tokarz, Nehad Hirmiz, Ankur Saxena, Alexander Shik, Harry E Ruda and Virginijus Barzda
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