Optical Imaging of CdSe Nanowires with Nanoscale Resolution


  • We thank T. Dennenwaldt and Prof. C. Scheu for TEM measurements. Financial support was provided by the DFG through the Nanosystems Initiative Munich (NIM).


original image

Down to the wire: High-resolution photoluminescence (PL) and Raman images of CdSe nanowires were obtained using tip-enhanced near-field optical microscopy. They show that the optical properties of the CdSe nanowires vary significantly within a few nanometers leading to strong spatial fluctuations in both PL intensities and energies (see picture).