Journal
OPTICS LETTERS
Volume 36, Issue 17, Pages 3404-3406Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.36.003404
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Funding
- National Science Foundation (NSF) [DMR-0808937]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0808937] Funding Source: National Science Foundation
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We experimentally studied the spatial coherence of random laser emission from dye solutions containing nanoparticles. The spatial coherence, measured in a double slit experiment, varied significantly with the density of scatterers and the size and shape of the excitation volume. A qualitative explanation is provided, illustrating the dramatic difference from the spatial coherence of a conventional laser. This work demonstrates that random lasers can be controlled to provide intense, spatially incoherent emission for applications in which spatial cross talk or speckle limit performance. (C) 2011 Optical Society of America
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