Complex spatial structures due to atomic coherence

Oppo, Gian-Luca (2010) Complex spatial structures due to atomic coherence. Journal of Modern Optics, 57 (14-15). pp. 1408-1416. ISSN 0950-0340

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The coupling of diffraction and optical coherence of a three-level medium in an optical cavity is considered. Self-organisation and pattern formation due to a combination of electromagnetically induced transparency, close-to-resonance Kerr effects and diffraction is demonstrated. Self-focusing in the peaks of the resulting Turing pattern leads to localised amplification of the input pump. Spatial dissipative solitons with controllable position, dispersion and coherence are also described.