TY  - JOUR
AU  - Anand, M.
AU  - Gibbon, P.
AU  - Krishnamurthy, M.
TI  - Large spectral blue shifts in intense laser irradiation of microdroplets
JO  - Optics express
VL  - 14
SN  - 1094-4087
CY  - Washington, DC
PB  - Soc.
M1  - PreJuSER-51648
SP  - 5502 - 5507
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - When methanol microdroplets of 15 m m size are irradiated by intense femtosecond laser pulses of moderate intensities (< 2 x 10(16)W cm(-2)), we observe a 'red-light flash' from the microplasma. We report on the presence of a large 'blue shoulder' (that extends to about 200 nm from the incident laser wavelength) in the scattered spectra that corresponds to the red-light flash. A prepulse is found to be essential for producing the large blue shift, which is attributed to the rapid subsequent ionization of a near-critical density preplasma when the main pulse is incident. c 2006 Optical Society of America
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000238437800064
DO  - DOI:10.1364/OE.14.005502
UR  - https://juser.fz-juelich.de/record/51648
ER  -