Acousto-optical nanoscopy of buried photonic nanostructuresTools Czerniuk, T., Schneider, C., Kamp, M., Höfling, S., Glavin, B.A., Yakovlev, D.R., 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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