TITLE

Suppressing the thermal lens effect by magnetic-field-induced mass transfer and phase separation in a magnetic fluid

AUTHOR(S)
Shengli Pu; Xianfeng Chen; Lijun Chen; Weijun Liao; Yuping Chen; Yuxing Xia
PUB. DATE
July 2005
SOURCE
Applied Physics Letters;7/11/2005, Vol. 87 Issue 2, p021905
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A method for suppressing the thermal lens effect in a magnetic fluid is proposed in this letter. When an external parallel magnetic field is applied, the thermal lens effect is weakened, and the degree of the divergence of the laser beam after passing through the magnetic fluid decreases. By experimental measurement and theoretical analysis, we assign this phenomenon to two physical mechanisms: the magnetic-field-induced mass transfer and phase separation in the magnetic fluid. With this method, the quality of the magnetic-fluid-based potential photonic devices can be improved.
ACCESSION #
18008185

 

Related Articles

  • Investigation on configuration of self-assembly in magnetic fluid film under a magnetic field. Kou, Yao; Di, Ziyun; Chen, Xianfeng // Journal of Applied Physics;Jul2009, Vol. 106 Issue 1, p14501 

    We experimentally study transmittances of water-based magnetic fluid (MF) film and the behaviors of nanoparticles under an external magnetic field. The transmittances of two orthogonally polarized rays exhibit different curve shapes. The experimental data are used to determine the values of...

  • TRANSPORT OF NANOPARTICLES THROUGH NON-ISOTHERMAL FERROFLUID LAYER WITH PERMEABLE WALLS. Blums, E.; Mezulis, A.; Kronkalns, G.; Sints, V. // Magnetohydrodynamics (0024-998X);2012, Vol. 48 Issue 2, p451 

    The paper deals with nanoparticle transfer through a thin non-isothermal ferrofluid layer between two permeable nonmagnetic walls. The transient mass flux is determined from measurements of particle concentration changes in two fluid chambers of different temperatures attached to both sides of...

  • Polarization: Ray Ray Go Away. Battat, Sarah // Canadian Young Scientist Journal;2012, Vol. 2012 Issue 1, p39 

    This project examines the difference in the intensity and polarization of laser light when a Ferrofluid or Magneto-Rheological Fluid (MRF) is used as a polarizer, in the presence of a magnetic field. The hypotheses include that the MRF would act as a more effective polarizer when exposed to an...

  • Enhancement of switching speed by laser-induced clustering of nanoparticles in magnetic fluids. Hai-Dong Deng; Jin Liu; Wei-Ren Zhao; Wei Zhang; Xu-Sheng Lin; Ting Sun; Qiao-Feng Dai; Li-Jun Wu; Sheng Lan; Gopal, Achanta Venu // Applied Physics Letters;6/9/2008, Vol. 92 Issue 23, p233103 

    The switching speed of magnetic fluids was investigated by using laser light of different power densities as well as incandescent light. It was found that the switching speed exhibited a strong dependence on incident power density and there existed an optimum value at which the fastest switching...

  • NEW PROBLEMS OF MASS TRANSPORT IN MAGNETIC FLUIDS. Blūms, E.; Šints, V.; Mežulis, A.; Kroŋkalns, G. // Magnetohydrodynamics (0024-998X);Jul-Dec2013, Vol. 49 Issue 3/4, p360 

    The experimental results on mass transfer through a non-isothermal porous layer saturated with a ferrofluid are outlined in the paper. A transversal magnetic field causes remarkable changes in the thermpohoretic particle flux. The obtained results are interpreted by taking into account the...

  • Direct overwriting capability in TM-rich side rare-earth transition metal amorphous films. Takayama, Shinji; Shimizu, Teruhisa; Owa, Soichi; Tanaka, Hiroshi // Applied Physics Letters;6/25/1990, Vol. 56 Issue 26, p2690 

    The feasibility of a new method for direct overwrite with a power-modulated laser beam under a constant external bias field Hex fixed in the same direction as an initializing field Hinit was demonstrated by means of a dynamic disk tester. TbFeCoCr amorphous films with compensation temperature...

  • Quasistatic magnetic field generated by a short laser pulse in an underdense plasma. Gorbunov, Leonid M.; Mora, Patrick // Physics of Plasmas;Dec97, Vol. 4 Issue 12, p4358 

    Examines the quasistatic magnetic field generated by short laser pulse in a uniform rarefied plasma and compares them to that of two-dimensional particle simulations. Generation of an azimuthal magnetic field structure by an axisymmetric laser pulse; Basic equations and approximations.

  • Space—time dynamics of nanoparticles of a magnetofluid in a laser beam. Nersisyan, S. R.; Tabiryan, N. V. // JETP Letters;10/10/98, Vol. 68 Issue 7, p622 

    Laser-induced space–time dynamics of nanoparticles of a magnetofluid was observed. Visualization was effectuated and the redistribution of the particles was measured. These showed a strong decrease in the particle density on and around the periphery of the laser beam axis. A number of...

  • Intensity dependent transmission dynamics in magnetic fluids. Du, Tengda; Luo, Weili // Journal of Applied Physics;4/15/1999 Part 2B of 2, Vol. 85 Issue 8, p5953 

    Focuses on a study on time dependent transmission observed when a laser beam passes through a layer of magnetic fluid. Use of a model to explain the complex dynamics; Experimental step; Results and discussion.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics