TITLE

Kinetics of photoinduced surface patterning in chalcogenide thin films

AUTHOR(S)
Kaganovskii, Yu.; Beke, D. L.; Kökényesi, S.
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/9/2010, Vol. 97 Issue 6, p061906
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The kinetics of photoinduced variations in surface profile in chalcogenide glass films under illumination is described. It is demonstrated that the competition between the stress-induced atomic flux (toward irradiated regions of the film) and the diffusion flux induced by an increase in the bulk energy due to broken bonds (and directed from irradiated to dark regions) can result in either a positive or negative net mass transfer in the irradiated region. Depending on the light intensity, one can obtain either formation of bumps or depressions in the illuminated regions.
ACCESSION #
52929610

 

Related Articles

  • Alternating matter motion in photoinduced mass transport driven and enhanced by light polarization in amorphous chalcogenide films. Trunov, M. L.; Lytvyn, P. M.; Dyachyns’ka, O. M. // Applied Physics Letters;7/19/2010, Vol. 97 Issue 3, p031905 

    We present direct measurements of the kinetics of surface relief gratings (SRGs) formation in amorphous As20Se80 thin films observed in real time by in situ atomic force microscopy. SRGs are induced in different holographic schemes of recording using near band-gap light and enhanced additionally...

  • Energy Transfer in W UMa Systems. Csizmadia, Szilárd // Astrophysics & Space Science;Apr2005, Vol. 296 Issue 1-4, p185 

    W UMa stars consist of two main sequence stars touching each other. Mass and energy is transferred from the primary star to the secondary one throughout the neck between the stars. The rate of the energy transfer is studied. The energy transfer rate depends on the mass and luminosity ratio. A...

  • Heat and Mass Transfer in Reduction Zone of Sponge Iron Reactor. Alamsari, Bayu; Torii, Shuichi; Trianto, Azis; Bindar, Yazid // ISRN Mechanical Engineering;2011, Special section p1 

    Numerical prediction is performed on reduction zone of iron ore reactor which is a part of counter current gas-solid reactor for producing sponge iron. The aim of the present study is to investigate the effect of reduction gas composition and temperature on quality and capacity of sponge iron...

  • Determination of Characteristics of Thin‐Layer Thermoprotective Coatings by Solving Inverse Heat‐ and Mass‐Transfer Problems. Isakov, G. N.; Kuzin, A. Ya.; Savel'ev, V. N.; Ermolaev, V. F. // Combustion, Explosion, & Shock Waves;Sep/Oct2003, Vol. 39 Issue 5, p563 

    Measurement data on unsteady temperature fields in decomposing thermoprotective coatings and on mass losses in a high‐temperature inert‐gas (nitrogen) flow are reported. With the use of analytical and numerical methods for solving boundary and coefficient inverse heat‐ and...

  • Transport phenomena in porous media: A review. Haghi, A. // Theoretical Foundations of Chemical Engineering;Jan2006, Vol. 40 Issue 1, p14 

    This paper, a review of the state of the art of the drying process in wet porous media, presents an overview of thermodynamic relations in heat treatment of synthetic fiber fabrics. Heat and mass transfer in wet porous media are coupled in a very complicated way. The structure of the solid...

  • Analysis of the Transfer Processes in a Vapor Film during the Interaction of a Highly Heated Body with a Cold Liquid. Kryukov, A. P.; Yastrebov, A. K. // High Temperature;Sep/Oct2003, Vol. 41 Issue 5, p680 

    The processes of heat and mass transfer in a vapor film formed during the interaction of a highly heated body with a cold liquid are investigated using a numerical solution of the kinetic Boltzmann equation and a one-dimensional unsteady-state formulation of the problem. The solution is derived...

  • Energy transport in the Vaidya system. Krisch, J. P.; Glass, E. N. // Journal of Mathematical Physics;Jun2005, Vol. 46 Issue 6, p062501 

    Energy transport mechanisms can be generated by imposing relations between null tetrad Ricci components. Several kinds of mass and density transport generated by these relations are studied for the generalized Vaidya system.

  • Modeling evaporation processes in a saline soil from saturation to oven dry conditions. Gran, M.; Carrera, J.; Olivella, S.; Saaltink, M. W. // Hydrology & Earth System Sciences;2011, Vol. 15 Issue 7, p2077 

    Thermal, suction and osmotic gradients interact during evaporation from a salty soil. Vapor fluxes become the main water flow mechanism under very dry conditions. A coupled nonisothermal multiphase flow and reactive transport model was developed to study mass and energy transfer mechanisms...

  • Computer simulation of photoinduced mass transport on azobenzene polymer films by particle method. Barada, Daisuke; Itoh, Masahide; Yatagai, Toyohiko // Journal of Applied Physics;10/15/2004, Vol. 96 Issue 8, p4204 

    The formation and erasure of photoinduced surface relief gratings (SRGs) on azobenzene-containing polymers are simulated using a calculation model based on the moving-particle semi-implicit method. For the convection calculation, an anisotropic diffusion model is proposed. The gradient force of...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics