Generation of wavelength-dependent, periodic line pattern in metal nanoparticle-containing polymer films by femtosecond laser irradiation

Kiesow, A.; Strohkark, S.; Löschner, K.; Heilmann, A.; Podlipensky, A.; Abdolvand, A.; Seifert, G.
April 2005
Applied Physics Letters;4/11/2005, Vol. 86 Issue 15, p153111
Academic Journal
Thin polymer films containing metal nanoparticles were irradiated with ultrashort, linearly polarized laser pulses. As result of irradiation, nanostructural changes occur in a type of periodically arranged, line-like areas with modified particle size and shape distribution. The periodic formation in this nanocomposite material is observed only for a small filling factor range, which can be attributed to the percolation region or nearby. Transmission (also in cross section) and scanning electron microscopy were applied to investigate the obtained structure modifications. A linear dependency between the period Λ of the line structures and the laser wavelength λ (800, 528, 400, and 266 nm) used with Λ/λ≈0.70 is assumed. The structural changes and the physical mechanism of the periodic formation are discussed.


Related Articles

  • STEM (scanning transmission electron microscopy) analysis of femtosecond laser pulse induced damage to bulk silicon. Coyne, E.; Magee, J. P.; Mannion, P.; O'Connor, G. M.; Glynn, T. J. // Applied Physics A: Materials Science & Processing;Jul2005, Vol. 81 Issue 2, p371 

    This work reports on the structural changes that take place in wafer grade silicon when it is micro-machined with ultra-short laser pulses of 150 fs duration. A Chirped Pulse Amplification (CPA) Ti:Sapphire laser was used, with an operating wavelength centered on 775 nm and a maximum repetition...

  • Nanofractal structure consisting of nanoparticles produced by ultrashort laser pulses. Nishikawa, Kumiko; Takano, Kei; Miyahara, Hidekazu; Kawamura, Tohru; Okino, Akitoshi; Hotta, Eiki; Nayuki, Takuya; Oishi, Yuji; Fujii, Takashi; Wang, Xiaofang; Nemoto, Koshichi // Applied Physics Letters;12/11/2006, Vol. 89 Issue 24, p243112 

    By irradiating subpicosecond laser onto an iron plate, a nanofibrous structure consisting of iron nanoparticles with diameters less than 12 nm was produced. The nanofibrous structure was found to be three-dimensional fractal, and its fractal dimension measured from field-emission scanning...

  • Nanochannels fabricated by high-intensity femtosecond laser pulses on dielectric surfaces. Kudryashov, Sergey I.; Mourou, Gerard; Joglekar, Ajit; Herbstman, Jeffrey F.; Hunt, Alan J. // Applied Physics Letters;10/1/2007, Vol. 91 Issue 14, p141111 

    Direct scanning electron microscopy examination reveals a complex structure of narrow, micron-deep, internal nanochannels within shallow, nanoscale, external craters fabricated on glass and sapphire surfaces by single high-intensity femtosecond laser pulses, with nearly the same intensity...

  • Ultrashort-pulse laser ablation of indium phosphide in air. Bonse, J.; Wrobel, J.M.; Krüger, J.; Kautek, W. // Applied Physics A: Materials Science & Processing;2001, Vol. 72 Issue 1, p89 

    Abstract. Ablation of indium phosphide wafers in air was performed with low repetition rate ultrashort laser pulses (130 rs, 10 Hz) of 800 nm wavelength. The relationships between the dimensions of the craters and the ablation parameters were analyzed. The ablation threshold fluence depends on...

  • PRESERVATION THROUGH CONSERVATION. Carpenter, Kim // Sculpture Review;Summer2009, Vol. 58 Issue 2, p8 

    The article focuses on conservation of sculptures and different conservation methods. It states that traditional conservation methods use a combination of techniques, including scanning electron microscopy to assess damage, abrasive cleaning using walnut shells or high-pressure water to remove...

  • Dynamics of Femtosecond Laser Ablation Plume Studied With Ultrafast X-ray Absorption Fine Structure Imaging. Oguri, Katsuya; Okano, Yasuaki; Nishikawa, Tadashi; Nakano, Hidetoshi // AIP Conference Proceedings;10/8/2010, Vol. 1278 Issue 1, p656 

    We investigated the dynamic process of an expanding femtosecond laser ablation plume of aluminum generated in an irradiation intensity range of 1013-1015 W/cm2 with the ultrafast x-ray absorption fine structure (XAFS) imaging technique. The XAFS spectra of the aluminum LII,III edge of the plume...

  • Single-shot ablation of sapphire by ultrashort laser pulses. Christensen, Mehrnaz N.; Byskov-Nielsen, Jeppe; Christensen, Bjarke H.; Balling, Peter // Applied Physics A: Materials Science & Processing;Nov2010, Vol. 101 Issue 2, p279 

    Single-shot laser ablation of single-crystal sapphire (0001) samples by ultrashort infra-red laser pulses has been undertaken. The laser-generated structures are analyzed by scanning-electron and atomic-force microscopy. The data produce an ablation threshold of 8.4±0.6 J/cm...

  • Cleaning of artificially soiled paper using nanosecond, picosecond and femtosecond laser pulses. Pentzien, Simone; Conradi, Andrea; Koter, Robert; Krüger, Jörg // Applied Physics A: Materials Science & Processing;Nov2010, Vol. 101 Issue 2, p441 

    Cleaning of cultural assets, especially fragile organic materials like paper, is a part of the conservation process. Laser radiation as a non-contact tool offers prospects for that purpose. For the studies presented here, paper model samples were prepared using three different paper types (pure...

  • Femtosecond laser-based fabrication of a new model material to study fracture. Weck, A.; Crawford, T. H. R.; Borowiec, A.; Wilkinson, D. S.; Preston, J. S. // Applied Physics A: Materials Science & Processing;Jan2007, Vol. 86 Issue 1, p55 

    The ductile fracture process consists of the nucleation, growth and coalescence of voids in a material. Predictive models of ductility require a complete understanding of the coalescence event. However, coalescence occurs over very small strains and is therefore difficult to observe...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics