Observation of Continuous-Wave On-Resonance "Self-Focusing"

K. Tai, H. M. Gibbs, M. C. Rushford, N. Peyghambarian, J. S. Satchell, M. G. Boshier, R. J. Ballagh, W. J. Sandle, M. LeBerre, E. Ressayre, A. Tallet, J. Teichmann, Y. Claude, F. P. Mattar, P. D. Drummond

Research output: Contribution to journalArticle

40 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)243-245
Number of pages3
JournalOptics letters
Issue number6
StatePublished - Jun 1984

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Observation of Continuous-Wave On-Resonance "Self-Focusing"'. Together they form a unique fingerprint.

  • Cite this

    Tai, K., Gibbs, H. M., Rushford, M. C., Peyghambarian, N., Satchell, J. S., Boshier, M. G., Ballagh, R. J., Sandle, W. J., LeBerre, M., Ressayre, E., Tallet, A., Teichmann, J., Claude, Y., Mattar, F. P., & Drummond, P. D. (1984). Observation of Continuous-Wave On-Resonance "Self-Focusing". Optics letters, 9(6), 243-245. https://doi.org/10.1364/OL.9.000243