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Updated: May 28, 2026

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Published on: September 5, 2017

Trapping leidenfrost drops with crenelations.

Guillaume Dupeux¹, Marie Le Merrer, Christophe Clanet

¹PMMH, UMR 7636 du CNRS, ESPCI, 75005 Paris, France.

Physical Review Letters

|October 27, 2011

Summary

Crenelated surfaces dramatically increase friction for Leidenfrost drops, enabling precise control and manipulation of these levitating droplets. This breakthrough overcomes challenges in handling highly mobile droplets on hot surfaces.

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Area of Science:

Fluid Dynamics
Surface Science
Materials Science

Background:

Leidenfrost drops levitate on a vapor layer above hot surfaces, exhibiting high mobility.
This mobility poses significant challenges for controlling and manipulating droplets in various applications.

Purpose of the Study:

To investigate the use of crenelated surfaces for controlling Leidenfrost drop motion.
To quantify the increase in friction and trapping capabilities for levitating drops.

Main Methods:

Fabrication of surfaces with varying crenelation designs.
Experimental measurement of Leidenfrost drop deceleration and trapping distances.
Characterization of friction forces based on surface geometry.

Main Results:

Crenelated surfaces increased Leidenfrost drop friction by approximately 100 times.
Levitating drops were decelerated and trapped within centimetric distances.
Friction force was found to be dependent on crenelation design parameters.

Conclusions:

Crenelated surfaces offer an effective method for controlling and manipulating Leidenfrost drops.
This technique enhances droplet manipulation by significantly increasing friction and reducing travel distance.