TY - JOUR KW - USA KW - Pulse KW - Gap KW - Band gap KW - Evaporation KW - Experimental KW - Material KW - Ablation KW - Laser KW - Laser ablation KW - Laser ablation KW - Time-resolved KW - Time KW - Ca KW - Glass KW - Glasses KW - Plasma KW - Number KW - Pulses KW - Single KW - C KW - Mechanism KW - Mechanisms KW - Femtosecond KW - Excitation KW - Electron number densities KW - Picosecond KW - Density KW - Nanosecond KW - Laser material interaction KW - Electron KW - Electron number density KW - Nm KW - Number density KW - Order KW - Ha KW - Femtosecond laser KW - Circulation KW - Irradiation KW - Physics KW - Evolution KW - L KW - Band KW - Electronic excitation KW - Electronic-excitation KW - FS KW - Imaging KW - Superconductor thin-films KW - Time scales KW - Time-resolved imaging AU - Xianglei Mao AU - Samuel S Mao AU - Richard E Russo AB -

While substantial progress has been achieved in understanding laser ablation on the nanosecond and picosecond time scales, it remains a considerable challenge to elucidate the underlying mechanisms during femtosecond laser material interactions. We present experimental observations of electronic excitation inside a wide band gap glass during single femtosecond laser pulse (100 fs, 800 nm) irradiation. Using a femtosecond time-resolved imaging technique, we measured the evolution of a laser-induced electronic plasma inside the glass and calculated the electron number density to be on the order of 1019 cm-3.

AD -

Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

BT - Applied Physics Letters C2 - LBNL-52021 DA - 02/2003 DO - 10.1063/1.1541947 IS - 5 LA - eng LB - Laser N2 -

While substantial progress has been achieved in understanding laser ablation on the nanosecond and picosecond time scales, it remains a considerable challenge to elucidate the underlying mechanisms during femtosecond laser material interactions. We present experimental observations of electronic excitation inside a wide band gap glass during single femtosecond laser pulse (100 fs, 800 nm) irradiation. Using a femtosecond time-resolved imaging technique, we measured the evolution of a laser-induced electronic plasma inside the glass and calculated the electron number density to be on the order of 1019 cm-3.

PY - 2003 SP - 697 EP - 699 ST - Appl. Phys. Lett. T2 - Applied Physics Letters TI - Imaging femtosecond laser-induced electronic excitation in glass VL - 82 ER -