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Influence of laser beam intensity profile on propagation dynamics of laser-blow-off plasma plume

  • Ajai Kumar (a1), Sony George (a2), R.K. Singh (a1) and V.P.N. Nampoori (a2)

Effect of intensity profile of the ablating laser on the dynamics of laser-blow-off (LBO) plume has been studied by fast imaging technique. This work emphasizes the geometrical aspect of the LBO plume, which is an important parameter for various applications. Visualization of the expanding plume reveals that geometrical shape and directionality (divergence) of the plume are highly dependent on the laser intensity profile. Present results demonstrate that the Gaussian profile laser produces a well-collimated, low divergence plasma plume as compared to the plume formed by a top-hat profile laser. The sequence of film removal processes is invoked to explain the role of energy density profile of the ablating laser in LBO mechanism.

Corresponding author
Address correspondence and reprint requests to: Ajai Kumar, Institute for Plasma Research, Bhat, Gandhinagar-382 428, India. E-mail:,
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Adrian F.J., Bohandy J., Kim B.F., Jette A.N. & Thomson P. (1987). A study of the mechanism of metal deposition by the laser-induced forward transfer process. J. Vac. Sci. Technol. B 5, 14901494.
Amoruso S., Bruzzese R., Spinelli N., Velotta R., Vitiello M. & Wang X. (2003). Dynamics of laser-ablated MgB2 plasma expanding in argon probed by optical emission spectroscopy. Phys. Rev. B 67, 224503–1/224503–11.
Amoruso S., Sambri A. & Wang X. (2006). Propagation dynamics of a LaMnO3 laser ablation plume in an oxygen atmosphere. J. Appl. Phys. 100, 013302–1/013302–11.
Anisimov S.I. & Luk'yanchuk B.S. (2002). Selected problems of laser ablation theory. Phys. Uspekhi 45, 293324.
Bakos J.S., Földes I.B., Ignácz P.N., Kedves M.A. & Szigeti J. (1992). Radiation imprisonment in laser blow-off plasma. Laser Part. Beams 10, 715721.
Baseman R.J. & Froberg N.M. (1989). Time-resolved transmission of thin gold films during laser blow-off. Appl. Phys. Lett. 55, 18411843.
Beilis Isak I. (2007). Laser plasma generation and plasma interaction with ablative target. Laser Part. Beams 25, 5363.
Broer D.J. & Vriens L. (1983). Laser-induced optical recording in thin films. Appl. Phys. A 32, 107123.
Bulgakova N.M., Bulgakov A.V. & Bobrenok O.F. (2000). Double layer effects in laser-ablation plasma plumes. Phy. Rev. E 62, 56245635.
Chrisey D.B. & Hubler G.K. (1994). Pulsed Laser Deposition of Thin Films. New York: John Wiley & Sons.
Doria D., Lorusso A., Belloni F., Nassisi V., Torrisi L. & Gammino S. (2004). A study of the parameters of particles ejected from a laser plasma. Laser Part. Beams 22, 461467.
Fazio E., Neri F., Ossi P.M., Santo N. & Trusso S. (2009). Ag nanocluster synthesis by laser ablation in Ar atmosphere: A plume dynamics analysis. Laser Part. Beams, 27, 281290.
Geohegan D.B., Puretzky A.A., Duscher G. & Pennycook S.J. (1998). Photoluminescence from gas-suspended SiOx nanoparticles synthesized by laser ablation. Appl. Phys. Lett. 73, 438440.
George Sony., Kumar Ajai., Singh R.K. & Nampoori V.P.N. (2009). Fast imaging of laser-blow-off plume: Lateral confinement in ambient environment. Appl. Phys. Lett 94, 141501–1/141501–3.
Harilal S.S. (2007). Influence of spot size on propagation dynamics of laser-produced tin plasma. J. Appl. Phys. 102, 123306–1/123306–6.
Hoffman D.H.H. (2009). Ion and laser beams as tools for high energy density physics. Laser Part. Beams, 27, 12.
Huber A., Samm U., Schweer B. & Mertens Ph. (2005). Result from a double Li-beam technique for measurement of both radial and poloidal components of electron density fluctuations using two thermal beams. Plasma Phys. Contr. Fusion 47, 409440.
Key M.H., Toner W.T., Goldsack T.J., Kilkenny J.D., Veats S.A., Cunningham P.F. & Lewis C.L.S. (1983). A study of ablation by laser irradiation of plane targets at wavelengths 1.05, 0.53, and 0.35 µm. Phys. Fluids 26, 20112026.
Kumar Ajai., Singh R.K., Prahlad V. & Joshi H.C. (2010). Effect of magnetic field on the Laser-Blow-Off of Li plasma: Role of atomic processes. Laser Part. Beams. 28, 121127.
Laska L., Jungwirth K., Krasa J., Krousky E., Pfeifer M., Rohlena K., Velyhan A., Ullschmied J., Gammino S., Torrisi L., Badziak J., Parys P., Rosinski M., Ryc L., & Wolowskim J. (2008). Angular distributions of ions emitted from laser plasma produced at various irradiation angles and laser intensities. Laser Part. Beams 26, 555565.
Masnavi M., Nakajima M., Sasaki A., Hotta E. & Horioka K. (2006). Potential of discharge-based lithium plasma as an extreme ultraviolet source. Appl. Phys. Lett. 89, 031503–1/031503–3.
Nardi E., Maron Y. & Hoffmann D.H.H. (2009). Dynamic screening and charge state of fast ions in plasma and solids. Laser Part. Beams, 27, 355361.
Rafique M.S., Khaleeq-Ur-Rahman M., Riaz I., Jalil R. & Farid N. (2008). External magnetic field effect on plume images and X-ray emission from a nanosecond laser produced plasma. Laser Part. Beams, 26, 217224.
Schultze V. & Wagner M. (1991). Blow-off of aluminum films. Appl. Phys. A 53, 241248.
Singh R.K. & Narayan J. (1990). Pulsed-laser evaporation technique for deposition of thin films: Physics and theoretical model. Phys. Rev. B 41, 88438859.
Singh R.K., Kumar Ajai., Patel B.G. & Subramanian K.P. (2007). Role of ambient gas and laser fluence in governing the dynamics of the plasma plumes produced by laser blow off of LiF–C thin film. J. Appl. Phys. 101, 103301–1/103301–9.
Sizyuk V., Hassanein A. & Sizyuk T. (2007). Hollow laser self-confined plasma for extreme ultraviolet lithography and other applications. Laser Part. Beams 25, 143154.
Veiko V.P., Shakhno E.A., Smirnov V.N., Miaskovski A.M. & Nikishin G.D. (2006). Laser – induced film deposition by LIFT: Physical mechanisms and applications. Laser Part. Beams 24, 203209.
Wang Y-L., Xu W., Zhou Y., Chu L-Z. & Fu G-S. (2007). Influence of pulse repetition rate on the average size of silicon nanoparticles deposited by laser ablation. Laser Part. Beams 25, 913.
Wolowski J., Badziak J., Czarnecka A., Parys P., Pisarek M., Rosinski M., Turan R. & Yerci S. (2007). Application of pulsed laser deposition and laser-induced ion implantation for formation of semiconductor nano-crystallites. Laser Part. Beams 25, 6569.
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Laser and Particle Beams
  • ISSN: 0263-0346
  • EISSN: 1469-803X
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