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SNOM-Videos


With an optical nearfield spectroscope it is possible to make interesting animations by varying the detection wavelength. This page shows a number of photoluminescence measurements on optical semiconductors. All measurements are from the Institute of Applied Physics, Technical University Braunschweig. The basis of the SNOM set-up is a DME DualScope™ DS45-40 Scanner.

Every animation was made from the data of one single measurement. 


  • "Flashing Quantum Dots"


  • Scratched semiconductor structure  


  • InGaN-LED at room temperature 


  • Uneven laterally growing InGaN structure 


  • Laterally growing Gallium-Nitrid structure at a temperature of app. 50 K


  • Laterally growing Indium-Gallium-Nitrid structure


  • Blue displaced InGaN facets


  • Individual InGaN-Quantum film on laterally growing structure