|
Summary of Research Projects (Supports in 2003
Fiscal Year)
| Subjects |
Optical memory effect by multiple scattering of light in random media |
| Representative researcher |
Kwansei Gakuin University Atusi KURITA |
| Photoreactive materials
combined with strongly scattering host media cause a novel
optical memory effect, which is based upon recording of interference
patterns of multiply scattered light in the optically inhomogeneous
medium. The effect is observed as holes in the fluorescence
excitation spectra; the sample is irradiated by attenuated
light from a cw dye laser, and a parameter such as laser
wavelength, incident angle, incident position, or polarization
direction, is scanned while fluorescence is detected; the
same laser beam is used for hole burning with the paremeter
fixed. Narrow holes are observed when the value of the scanned
parameter coincides with that of the burning condition. TiO2
microparticles embedded in polymethylmethacrylate which dissolves
a fluorescent fulgide derivative are used as recording media.
Here we report the result of a detailed study on the polarization
properties and the correlation between external parameters
of this memory effect. |
|
Japanese 
returns
to the list