[PDF]     http://dx.doi.org/10.3952/lithjphys.51403

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 51, 283–291 (2011)


NANOSCALE MODIFICATION OF DIELECTRICS UNDER ULTRASHORT LASER PULSE ACTION ON THE NANOPARTICLE-AT-THE-SUBSTRATE SYSTEM
V. L. Komolov
St. Petersburg State University of Information Technologies, Mechanics and Optics, Kronverkskiy pr. 49, 197101 St. Petersburg, Russia
E-mail: vlkomolov@gmail.com

Received 18 August 2011; accepted 1 December 2011

The results of theoretical analysis of the response of solid nanoparticles on the dielectric surface to the intense ultrashort laser pulse (USLP) action are presented. The estimation of the ionization degree of nanoparticles with permanently changing charge on the composition, intensity and laser pulse duration has been carried out using a simple analytical model. The dynamics of non-thermal destruction of nanoparticles and associated changes in the substrate surface due to the implantation of ions emitted from nanoparticles has been studied using numerical simulation.
Keywords: nanoparticle, photoionization, ion implantation, ultrashort laser pulse
PACS: 81.07.-b, 81.16.-c


DIELEKTRIKŲ KEITIMAS NANOMASTU, VEIKIANT „NANODALELĖS PAVIRŠIUJE“ SISTEMĄ ULTRATRUMPAIS LAZERIO IMPULSAIS
V. L. Komolov
Sankt Peterburgo valstybinis informacinių technologijų, mechanikos ir optikos universitetas, Sankt Peterburgas, Rusija

Pateikti kietųjų nanodalelių ant dielektrinio paviršiaus atsako į ultratrumpųjų lazerinių impulsų poveikį teorinės analizės rezultatai. Nanodalelių, visam laikui pakeičiančių krūvį, jonizacijos laipsnis, priklausantis nuo sudėties, intensyvumo ir lazerio impulso trukmės, įvertintas naudojant paprastą analizinį modelį. Nanodalelių neterminio suirimo dinamika ir susiję pokyčiai substrato paviršiuje dėl jonų, išspinduliuotų iš nanodalelių, implantacijos nagrinėti pasitelkiant skaitmeninį modeliavimą.


References / Nuorodos

[1] C. Rose-Petruck, K.J. Schafer, K.R. Wilson, and C.P.J. Barty, Ultrafast electron dynamics and inner shell ionization in laser driven clusters, Phys. Rev. A 55, 1182–1189 (1997),
http://dx.doi.org/10.1103/PhysRevA.55.1182
[2] I. Last and J. Jortner, Dynamics of the Coulomb explosion of large clusters in a strong laser field, Phys. Rev. A 62, 013201 (2000),
http://dx.doi.org/10.1103/PhysRevA.62.013201
[3] Y.L. Shao, T. Ditmire, J.W.G. Tisch, E.S. Springate, J.P. Marangos, and M.H.R. Hutchinson, Multi-keV electron generation in the interaction of intense laser pulses with Xe clusters, Phys. Rev. Lett. 77(16), 3343–3346 (1996),
http://dx.doi.org/10.1103/PhysRevLett.77.3343
[4] V.E. Gruzdev, V.L. Komolov, S.G. Przhibel’skii, and D.S. Smirnov, Dynamics of the disruption of a nanoparticle totally ionized by a powerful ultrashort laser pulse, J. Opt. Technol. 73(6), 378–384 (2006),
http://dx.doi.org/10.1364/JOT.73.000378
[5] V.E. Gruzdev, V.L. Komolov, S.G. Przhibel’skii, and D.S. Smirnov, Breakdown of a nanoparticle partially ionized by a powerful ultrashort laser pulse, J. Opt. Technol. 74(6), 373–377 (2007),
http://dx.doi.org/10.1364/JOT.74.000373
[6] V. Gruzdev, V. Komolov, H. Li, Q. Yu, S. Przhibel’skii, and D. Smirnov, Photo-ionization and modification of nanoparticles on transparent substrates by ultrashort laser pulses, Proc. SPIE 7996, 79960J (2010),
http://dx.doi.org/10.1117/12.887181
[7] R.H. Fowler and L.W. Nordheim, Electron emission in intense electric field, Proc. Roy. Soc. A 119(781), 173–181 (1928),
http://dx.doi.org/10.1098/rspa.1928.0091
[8] J.G. Simmons, Generalized formula for the electric tunnel effect between similar electrodes separated by a thin insulating film, J. Appl. Phys. 34(6), 1793–1803 (1963),
http://dx.doi.org/10.1063/1.1702682
[9] J.G. Simmons, Electric tunnel effect between dissimilar electrodes separated by a thin insulating film, J. Appl. Phys. 34, 2581–2590 (1963),
http://dx.doi.org/10.1063/1.1729774
[10] J.G. Simmons, Generalized thermal JV characteristic for the electric tunnel effect, J. Appl. Phys. 35, 2655–2658 (1964),
http://dx.doi.org/10.1063/1.1713820
[11] C. Jungreuthmayer, M. Geissler, J. Zanghellini, and T. Brabec, Microscopic analysis of large-cluster explosion in intense laser fields, Phys. Rev. Lett. 92(13), 133401 (2004),
http://dx.doi.org/10.1103/PhysRevLett.92.133401
[12] K. Ishikawa and T. Blenski, Explosion dynamics of rare-gas clusters in an intense laser field, Phys. Rev. A 62, 063204 (2000),
http://dx.doi.org/10.1103/PhysRevA.62.063204