| Autor: |
Tai, K., Satchell, J. S., LeBerre, M., Ressayre, E., Teichmann, J., Mattar, F. P., Drummond, P. D., Claude, Y., Tallet, A., Boshier, M. G., Gibbs, H. M., Rushford, M. C., Ballagh, R. J., Sandle, W. J., Peyghambarian, N. |
| Zdroj: |
Optics Letters; June 1984, Vol. 9 Issue: 6 p243-245, 3p |
| Abstrakt: |
We report what to our knowledge are the first observations of an increase in the on-axis intensity of an intense cw on-resonance beam resulting from nonlinear absorption and diffraction during its propagation through a highly absorbing medium (sodium vapor). This “self-focusing” is not a self-lensing; instead it is modeled well by placing an aperture part way through the cell: The stripping by the aperture approximates the effect of the nonlinear absorption, and then Fresnel diffraction results in on-axis minima and maxima. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
