Back to Search
Start Over
Femtosecond laser-induced periodic structure adjustments based on electron dynamics control: from subwavelength ripples to double-grating structures
- Source :
- Optics Letters. 38:3743
- Publication Year :
- 2013
- Publisher :
- The Optical Society, 2013.
-
Abstract
- This study proposes a method for adjusting subwavelength ripple periods and the corresponding double-grating structures formed on fused silica by designing femtosecond laser pulse trains based on localized transient electron density control. Four near-constant period ranges of 190-490 nm of ripples perpendicular to the polarization are obtained by designing pulse trains to excite and modulate the surface plasmon waves. In the period range of 350-490 nm, the double-grating structure is fabricated in one step, which is probably attributable to the grating-assisted enhanced energy deposition and subsequent thermal effects.
Details
- ISSN :
- 15394794 and 01469592
- Volume :
- 38
- Database :
- OpenAIRE
- Journal :
- Optics Letters
- Accession number :
- edsair.doi.dedup.....aef9027ad3337b20b6a418c72601b422