The Center for Electro-Optics and Functionalized Surfaces (CEFS) is a collaborative research group composed of over 30 faculty, postdocs, graduate, and undergraduate students, from a diverse range of disciplines, working together towards a common vision of developing the basic science and methods necessary to generate permanent metallic functionalized surfaces.
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Current Research
Surface functionalization technologies
- Femtosecond laser surface processing (FLSP)
- Directional structures
- Atomic laser deposition (ALD)
- Lithographic/chemical microfabrication
- Femtosecond laser driven hyperdoping
- Molding of micro/nanostructures (PDMS)
- Tailor wetting properties (superhydrophobic, superhydrophilic, omniphobic)
- Modeling the formation of self-organized structures from light/matter interactions
Heat transfer
- Boiling
- Leidenfrost
- Microchannel cooling
- Condensation
Electrolysis
- Bubble formation and release
- Cyclicvoltometry
- Alternating wetting zones at microscales
Droplet microfluidics
- Liedenfrost driven droplet motion on functionalized metal surfaces
- Alternating wetting zones for droplet motion control at room temperature
Biomedical applications
- Anti-biofouling
- Biosensors (GI flow rate sensor)
Basic engineering diagnostics
- Ultrafast pump-probe
- Ultrasonics for microcrack detection
- Laser-induced breakdown spectroscopy (LIBS)
- Ellipsometry
Femtosecond laser direct writing
- Writing long period and Bragg gratings in optical fibers
- Direct writing of channels in sapphire
Optical communications
- Developing the enabling technology for an all optical data storage center
- All optical switching in communication networks/architectures
Superhydrophobic lotus leaf
![Superhydrophobic lotus leaf](/sites/unl.edu.engineering.cefs/files/media/image/1-FLSP2-1200_1.jpg)
Shark skin and Stainless Steel 316
![Shark skin and Stainless Steel 316](/sites/unl.edu.engineering.cefs/files/media/image/2-Shark-skin-1200.jpg)
Micro and Nano structuring combined with surface chemical changes in a single processing step
![Micro and Nano structuring combined with surface chemical changes in a single processing step](/sites/unl.edu.engineering.cefs/files/media/image/3-FLSP3-1200.jpg)
Reinventing the boiling curve using functionalized surfaces
![Reinventing the boiling curve using functionalized surfaces](/sites/unl.edu.engineering.cefs/files/media/image/4-boiling-curve-1200.jpg)