Observation of slowed light through a ruby window

Emma Wisniewski-Barker; Graham Gibson; Sonja Franke-Arnold; Zhimin Shi; Robert W. Boyd; Miles J. Padgett

doi:10.1117/12.2003738

6 March 2013 Observation of slowed light through a ruby window

Emma Wisniewski-Barker, Graham Gibson, Sonja Franke-Arnold, Zhimin Shi, Robert W. Boyd, Miles J. Padgett

Proceedings Volume 8636, Advances in Slow and Fast Light VI; 863609 (2013) https://doi.org/10.1117/12.2003738
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

A high-intensity laser pulse can lead to a change of the group index of a material, so that the pulse within that material is slowed to only hundreds of meters per second. This kind of slow-light phenomenon scales with the optical intensity of the pulse. While previous experiments have produced this effect with an elliptical beam passing through a spinning ruby window, a question remains as to whether the effect would be present in a circular beam. Here we use two different methods of producing slow light in a round beam, showing that, while less pronounced than the effect with an elliptical beam, a slow-light effect can be seen in a round beam.

Citation Download Citation

Emma Wisniewski-Barker, Graham Gibson, Sonja Franke-Arnold, Zhimin Shi, Robert W. Boyd, and Miles J. Padgett "Observation of slowed light through a ruby window", Proc. SPIE 8636, Advances in Slow and Fast Light VI, 863609 (6 March 2013); https://doi.org/10.1117/12.2003738

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