%0 Journal Article %K Energy %K Gas %K Surface %K Pulse %K Ablation %K Laser %K Laser ablation %K Laser ablation %K Field %K Sample %K Laser pulses %K Pulses %K Mechanism %K Mechanisms %K Femtosecond %K Argon %K Ga %K Energies %K Microprobe %K Silicon %K Generation %K Air %A Sy-Bor Wen %A Ralph Greif %A Richard E Russo %B Applied Physics Letters %D 2007 %F Laser %G eng %N 25 %R 10.1063/1.2827199 %T Background gas effect on the generation of nanopatterns on a pure silicon wafer with multiple femtosecond near field laser ablation %V 91 %8 12/2007 %! Appl. Phys. Lett.