Quantifying Pulsed Laser Induced Damage to Graphene
Abstract
As an emerging optical material, graphene s ultrafast dynamics are often probed using pulsed lasers yet the region in which optical damage takes place is largely uncharted. Here, femtosecond laser pulses induced localized damage in single-layer graphene on sapphire. Raman spatial mapping, SEM, and AFM microscopy quantified the damage. The resulting size of the damaged area has a linear correlation with the optical fluence. These results demonstrate local modification of sp2-carbon bonding structures with optical pulse fluences as low as 14 mJ/cm2, an order-of-magnitude lower than measured and theoretical ablation thresholds.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2011
- Accession Number
- ADA553552
Entities
People
- Francisco J Bezares
- Hayden Chun
- Jeremy S. Robinson
- Joshua D Caldwell
- Marc Currie
- Marko J. Tadjer
- Travis J. Anderson
Organizations
- United States Naval Research Laboratory