Affiliation:
1. Chitose Institute of Science and Technology
2. Kyushu Institute of Technology
Abstract
In this study, an optical trapping technique is employed to manipulate
the scatterer distribution within a random laser medium. By focusing
the trapping beams into small regions within the three-dimensional
scattering medium, the scattering particles around them are
concentrated in those regions, resulting in an inhomogeneous scatterer
distribution. The experimental results show that optical trapping
increases the maximum spike intensity in the emission spectrum.
Furthermore, the spectral spike intensity depends on the power of the
trap spots. The relationship between the maximum and average spike
intensities in the emission spectra exhibits a characteristic observed
in other random lasers with inhomogeneous scatterer distributions.
Funder
Japan Society for the Promotion of
Science
Cited by
1 articles.
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