proceeding

Higher Harmonic Generation Using Nano-structured Target Plumes

J. A. ChakerabScientific Association Akadempribor, Akademgorodok, Tashkent 100125, UzbekistanH. SinghalbScientific Association Akadempribor, Akademgorodok, Tashkent 100125, UzbekistanR. A. GaneevbScientific Association Akadempribor, Akademgorodok, Tashkent 100125, UzbekistanP. A. NaikbScientific Association Akadempribor, Akademgorodok, Tashkent 100125, UzbekistanAshish SrivastavaLaser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, IndiaArvinder SinghaLaser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, IndiaRama ChariaLaser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, IndiaRaees Ahmad KhanbScientific Association Akadempribor, Akademgorodok, Tashkent 100125, UzbekistanP. D. GuptabScientific Association Akadempribor, Akademgorodok, Tashkent 100125, UzbekistanDan Dumitraş

2010en

Ochiq kirish: yoʻq

ABI

Annotatsiya

An experimental study on high order harmonic generation (HHG) from the interaction of 45 fs Ti:sapphire laser pulses with preformed plasma plumes of nano‐structured targets has been carried out. Highly efficient HHG in the range of 9th order to 19th order was observed. The stability of HHG from nano‐structured targets is studied. Broadband HHG was observed from these targets. This spectral broadening can be understood from the self‐modulation of the laser in the plasma of nano‐structured targets. Efficient generation of even and odd order harmonics was observed through the use of two‐color pulses. HHG from circularly polarized light was also observed from two color excitation. The observations can be explained qualitatively from symmetry breaking of high order harmonic generation through the introduction of second harmonic pulses.

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Identifikatorlar

DOI: 10.1063/1.3426082

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