A random laser tailored by directional stimulated emission

Abstract

A disordered structure embedding an active gain material and able to lase is called random laser (RL). The RL spectrum may appear either like a set of sharp resonances or like a smooth line superimposed to the fluorescence. A recent letter accounts for this duality with the onset of a mode locked regime in which increasing the number of activated modes results in an increased inter mode correlation and a pulse shortening ascribed to a synchronization phenomenon. An extended discussion of our experimental approach together with an original study of the spatial properties of the RL is reported here.

9 Pages; 16 Figures

References in corpus (7)

• Supporting Online Material for "Strong Interactions in Multimode Random Lasers"
• Strong Interactions in Multimode Random Lasers
• The mode-locking transition of random lasers
• Statistical regimes of random laser fluctuations
• Condensation in disordered lasers: theory, 3D+1 simulations and experiments
• Ultrashort pulse propagation and the Anderson localization
• Measurement of transport mean free path of light in thin systems

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