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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.11 [2004] >
IJEMS Vol.11(4) [August 2004] >
| Title: | Ferrofluids, sol-gel method and materials for optical applications |
| Authors: | Jamon, D
Zins, D
Roux, H
Royer, F
Cabuil, V
Bovier, C
Rousseau, J J |
| Issue Date: | Aug-2004 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl.7 H01F 1/44 |
| Abstract: | This paper describes
how ferrofluids can be used to develop new composite materials for optical
applications. Ferrofluids are interesting materials for optics. Isotropic in a
zero magnetic field, these hybrid media exhibit optical anisotropies under an
applied magnetic field. For optical applications, the drawback of ferrofluids
is their liquid state. It is shown that by using sol-gel method new solid
material can be achieved. Moreover, permanent linear birefringence has been
obtained for sol-gel samples synthesized under an applied field. This
anisotropy can be adjusted. Doped sol-gel structures keep the same
magneto-induced circular anisotropy of the ferrofluid but no permanent effect
is achieved. |
| Page(s): | 237-240 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.11(4) [August 2004]
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