Münchner Physik Kolloquium: Optical Resonators, Spinwave Resonators and Hyper Lenses in Rolled-Up Semiconductor Microtubes

by Detlef Heitmann (Institute of Applied Physics, Universität Hamburg)

Monday 23 May 2011, 17:15 → 18:45 Europe/Berlin

Hörsaal 2 (Physik Department der TUM, Garching)

In my talk I will address three different applications for rolled-up semiconductor microtubes: (i) Utilizing the wave-guiding effect of the semiconductor layers, we find that light, propagating around the circumference of the microtube, interferes constructively and forms optical resonator modes. (ii) In rolled-up ferromagnetic layers, we observe in microwave experiments the interference of magnetic spin waves. (iii) In rolled-up metal/semiconductor layers we realize hyper lenses which are similar to the non-diffraction-limited super lenses based on metamaterials.