Title :
Multiple filamentation and supercontinuum emission from tightly focused femtosecond laser pulses in air
Author :
Kiran, P. Prem ; Bagchi, S. ; Krishnamurthy, M. ; Kumar, G.Ravindra
Author_Institution :
Tata Inst. of Fundamental Res., Mumbai
Abstract :
Filamentation characteristics of tightly focused 45 fs laser pulses in air are investigated using transverse imaging in the power range of 20-200 GW. The effect of linear and circular polarized light pulses on the onset and spatial evolution of filamentary substructures and the associated supercontinuum emission is studied.
Keywords :
high-speed optical techniques; laser beams; light polarisation; optical focusing; supercontinuum generation; circular polarized light; femtosecond laser pulses; filamentary substructures; filamentation; linear polarized light; power 20 GW to 200 GW; supercontinuum emission; tightly focused laser pulses; time 45 fs; transverse imaging; Charge coupled devices; Charge-coupled image sensors; Focusing; Optical imaging; Optical polarization; Optical propagation; Optical pulse generation; Optical pulses; Power lasers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391758
