#### Filter Results:

- Full text PDF available (13)

#### Publication Year

2003

2017

- This year (1)
- Last 5 years (3)
- Last 10 years (12)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

When fluctuating fields are confined between two surfaces, long-range forces arise. A famous example is the quantum-electrodynamical Casimir force that results from zero-point vacuum fluctuationsâ€¦ (More)

- Florian Soyka, Olga Zvyagolskaya, Christopher Hertlein, Laurent Helden, Clemens Bechinger
- Physical review letters
- 2008

We investigate the behavior of colloidal particles immersed in a binary liquid mixture of water and 2,6-lutidine in the presence of a chemically patterned substrate. Close to the critical point ofâ€¦ (More)

- Jules Mikhael, Johannes Roth, Laurent Helden, Clemens Bechinger
- Nature
- 2008

Monolayers on crystalline surfaces often form complex structures with physical and chemical properties that differ strongly from those of their bulk phases. Such hetero-epitactic overlayers areâ€¦ (More)

- Giovanni Volpe, Laurent Helden, Thomas Brettschneider, J. Bernhard Wehr, Clemens Bechinger
- Physical review letters
- 2010

We demonstrate how the ineluctable presence of thermal noise alters the measurement of forces acting on microscopic and nanoscopic objects. We quantify this effect exemplarily for a Brownian particleâ€¦ (More)

- Thomas Brettschneider, Giovanni Volpe, Laurent Helden, J. Bernhard Wehr, Clemens Bechinger
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2011

The study of microsystems and the development of nanotechnologies require alternative techniques to measure piconewton and femtonewton forces at microscopic and nanoscopic scales. Among theâ€¦ (More)

- Andrea Gambassi, Anna MacioÅ‚ek, +4 authors S. Dietrich
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

If a fluctuating medium is confined, the ensuing perturbation of its fluctuation spectrum generates Casimir-like effective forces acting on its confining surfaces. Near a continuous phase transitionâ€¦ (More)

- Laurent Helden, Gijsje H Koenderink, Paul Leiderer Leiderer, Clemens Bechinger
- Langmuir : the ACS journal of surfaces andâ€¦
- 2004

We present direct depletion potential measurements for a single colloidal sphere close to a wall in suspensions of charged colloidal rods. In contrast to earlier studies of purely entropic systemsâ€¦ (More)

- Giovanni Volpe, Thomas Brettschneider, Laurent Helden, Clemens Bechinger
- Optics express
- 2009

Total Internal Reflection Microscopy (TIRM) is a sensitive non-invasive technique to measure the interaction potentials between a colloidal particle and a wall with femtonewton resolution. Theâ€¦ (More)

- Laurent Helden, Ralf Eichhorn, Clemens Bechinger
- Soft matter
- 2015

We study the thermophoretic motion of a micron sized single colloidal particle in front of a flat wall by evanescent light scattering. To quantify thermophoretic effects we analyse the nonequilibriumâ€¦ (More)

- Christopher Hertlein, Norbert Riefler, +4 authors Clemens Bechinger
- Langmuir : the ACS journal of surfaces andâ€¦
- 2008

Total internal reflection microscopy (TIRM) is a method for the precise measurement of interaction potentials between a spherical colloidal particle and a wall. The method is based on single-particleâ€¦ (More)