Magnetically modulated optical transmission of magnetic fluid films

H. E. Horng, S. Y. Yang, W. S. Tse, H. C. Yang, Weili Luo, Chin Yih Hong

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The optical transmission of the magnetic fluid film under perpendicular magnetic fields was investigated by measuring the transmitted intensity of the normally incident light through the film. The transmittance I/I0 of the magnetic fluid film was observed to decrease with the increase of the magnetic field strength H due to the reduction in the area occupied by the relatively optic transparent liquid phase. Moreover, under a given H, the transmittance decreased exponentially with the increasing film thickness L, i.e. I/I0=exp(-L/δ), where the δ denotes the attenuation distance. It was further found that the δ varies with the magnetic field strength and the concentration of the fluid, but is independent of the sweep rate of the field.

Original languageEnglish
Pages (from-to)104-106
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume252
Issue number1-3 SPEC. ISS.
DOIs
Publication statusPublished - 2002 Nov 1

Fingerprint

fluid films
Magnetic fluids
Light transmission
Magnetic fields
field strength
transmittance
magnetic fields
Film thickness
Optics
liquid phases
film thickness
attenuation
optics
Fluids
fluids
Liquids

Keywords

  • Attenuation distance
  • Magnetic fluid
  • Transmittance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Magnetically modulated optical transmission of magnetic fluid films. / Horng, H. E.; Yang, S. Y.; Tse, W. S.; Yang, H. C.; Luo, Weili; Hong, Chin Yih.

In: Journal of Magnetism and Magnetic Materials, Vol. 252, No. 1-3 SPEC. ISS., 01.11.2002, p. 104-106.

Research output: Contribution to journalArticle

Horng, H. E. ; Yang, S. Y. ; Tse, W. S. ; Yang, H. C. ; Luo, Weili ; Hong, Chin Yih. / Magnetically modulated optical transmission of magnetic fluid films. In: Journal of Magnetism and Magnetic Materials. 2002 ; Vol. 252, No. 1-3 SPEC. ISS. pp. 104-106.
@article{b1ab1a0116d2446fa30745217c9af561,
title = "Magnetically modulated optical transmission of magnetic fluid films",
abstract = "The optical transmission of the magnetic fluid film under perpendicular magnetic fields was investigated by measuring the transmitted intensity of the normally incident light through the film. The transmittance I/I0 of the magnetic fluid film was observed to decrease with the increase of the magnetic field strength H due to the reduction in the area occupied by the relatively optic transparent liquid phase. Moreover, under a given H, the transmittance decreased exponentially with the increasing film thickness L, i.e. I/I0=exp(-L/δ), where the δ denotes the attenuation distance. It was further found that the δ varies with the magnetic field strength and the concentration of the fluid, but is independent of the sweep rate of the field.",
keywords = "Attenuation distance, Magnetic fluid, Transmittance",
author = "Horng, {H. E.} and Yang, {S. Y.} and Tse, {W. S.} and Yang, {H. C.} and Weili Luo and Hong, {Chin Yih}",
year = "2002",
month = "11",
day = "1",
doi = "10.1016/S0304-8853(02)00629-7",
language = "English",
volume = "252",
pages = "104--106",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "1-3 SPEC. ISS.",

}

TY - JOUR

T1 - Magnetically modulated optical transmission of magnetic fluid films

AU - Horng, H. E.

AU - Yang, S. Y.

AU - Tse, W. S.

AU - Yang, H. C.

AU - Luo, Weili

AU - Hong, Chin Yih

PY - 2002/11/1

Y1 - 2002/11/1

N2 - The optical transmission of the magnetic fluid film under perpendicular magnetic fields was investigated by measuring the transmitted intensity of the normally incident light through the film. The transmittance I/I0 of the magnetic fluid film was observed to decrease with the increase of the magnetic field strength H due to the reduction in the area occupied by the relatively optic transparent liquid phase. Moreover, under a given H, the transmittance decreased exponentially with the increasing film thickness L, i.e. I/I0=exp(-L/δ), where the δ denotes the attenuation distance. It was further found that the δ varies with the magnetic field strength and the concentration of the fluid, but is independent of the sweep rate of the field.

AB - The optical transmission of the magnetic fluid film under perpendicular magnetic fields was investigated by measuring the transmitted intensity of the normally incident light through the film. The transmittance I/I0 of the magnetic fluid film was observed to decrease with the increase of the magnetic field strength H due to the reduction in the area occupied by the relatively optic transparent liquid phase. Moreover, under a given H, the transmittance decreased exponentially with the increasing film thickness L, i.e. I/I0=exp(-L/δ), where the δ denotes the attenuation distance. It was further found that the δ varies with the magnetic field strength and the concentration of the fluid, but is independent of the sweep rate of the field.

KW - Attenuation distance

KW - Magnetic fluid

KW - Transmittance

UR - http://www.scopus.com/inward/record.url?scp=0037588017&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037588017&partnerID=8YFLogxK

U2 - 10.1016/S0304-8853(02)00629-7

DO - 10.1016/S0304-8853(02)00629-7

M3 - Article

AN - SCOPUS:0037588017

VL - 252

SP - 104

EP - 106

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 1-3 SPEC. ISS.

ER -