Strongly scattering active media as small-size frequency tunable sources of stimulated emission
|Eugene O. Tikhonov 2, Vasil P. Yashchuk 1, Olga A. Prygodjuk 1, Volodymyr I. Bezrodny 2|
1. Department of Physics, Taras Shevchenko Kyiv University, 6 Gloushkov avenue, Kyiv 252022, Ukraine
Strongly scattering luminescence media are alternative sources of lasing emission. Up to now these media have been mainly of scientific interest, because the features of this lasing were unascertained, and this limits possible practical use. Particularly, method of lasing wavelength tuning was not found. We have found these objects could present a practical interest. Particularly, investigated samples are able to generate even being optically thin due to surface influence. It is proved by the fact that lasing disappears when the surface influence is precluded by immersion. But in the absence of the scattering particles in the sample lasing is not observed. Thus, main origin of the lasing is the scattering by fine dispersed particles.
Presentation: oral at E-MRS Fall Meeting 2003, Symposium F, by Vasil P. Yashchuk
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-05-24 06:54 Revised: 2009-06-08 12:55