Femtosecond laser-assisted microstructuring of silicon surfaces for novel detector, sensing, and display technologies

Presentation Date: 

Monday, October 11, 2004


41st Annual Technical Meeting of the Society of Engineering Science, University of Nebraska, Lincoln (Lincoln, NE)

Presentation Slides: 

Irridiating silicon surfaces with trains of ultrashort laser pulses in the presence of a sulfur containing gas drastically changes the structure and properties of silicon. The normally smooth and highly reflective surface develops a forest of sharp microscopic spikes. The microstructured surface is highly absorbing even at wavelengths beyond the bandgap of silicon and has many interesting novel applications.