Abstract
In the past years, much research has been focused on so called photonic crystals. Different ways ol fabricating and simulating these structures have been introduced. Characterization is performed mostly with black box experiments, where reflected or transmitted light is detected.1,2 We demonstrate a different approach, which allows us to take a direct look inside such structures. With a heterodyne interferometric photon scanning tunneling microscope (PSTM), we are able to visualize not only the amplitude of the local optical field, but also the phase information ol light propagating inside the crystal.
© 2001 Optical Society of America
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