DPG Phi
Verhandlungen
Verhandlungen
DPG

Düsseldorf 2007 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 61: Poster Quanteneffekte

Q 61.5: Poster

Thursday, March 22, 2007, 16:30–18:30, Poster C

Casimir Forces and nano-crafted surfacesLodewijk Arntzen, Maarten DeKieviet, Felix Laux, and •Ulrich Warring — Physikalisches Institut der Universität, Philosophenweg 12, D-69120 Heidelberg

In the Heidelberger Atomic Beam Spin Echo (ABSE) spectrometer, we have recently succeeded to detect Quantum Reflection (QR) of 3He atoms from plain and well-characterized surfaces. For semi-conductors, we find that QR takes place at the transition from the van der Waals dominated part of the interaction potential to the Casimir-Polder part. In order to investigate the topological aspects of the Casimir-Polder force, we studied QR from different gratings. Depending on the shape and the orientation of these nano-structures, changes in the reflected intensity and the angular-distribution were observed. Quantitatively, the data are explained by vertical and lateral Casimir-Polder forces.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2007 > Düsseldorf