Acousto-optical nanoscopy of buried photonic nanostructuresTools Czerniuk, T. and Schneider, C. and Kamp, M. and Höfling, S. and Glavin, B.A. and Yakovlev, D.R. and Akimov, Andrey V. and Bayer, M. (2017) Acousto-optical nanoscopy of buried photonic nanostructures. Optica, 4 (6). pp. 588-594. ISSN 2334-2536 Full text not available from this repository.AbstractWe develop a nanoscopy method with in-depth resolution for layered photonic devices. Photonics often requires tailored light field distributions for the optical modes used, and an exact knowledge of the geometry of a device is crucial to assess its performance. The presented acousto-optical nanoscopy method is based on the uniqueness of the light field distributions in photonic devices: for a given wavelength, we record the reflectivity modulation during the transit of a picosecond acoustic pulse. The temporal profile obtained can be linked to the internal light field distribution. From this information, a reverse-engineering procedure allows us to reconstruct the light field and the underlying photonic structure very precisely. We apply this method to the slow light mode of an AlAs/GaAs micropillar resonator and show its validity for the tailored experimental conditions.
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