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		| Paper: | 
		Alternatives to the Conventional Sodium Beacon | 
	 
	
		| Volume: | 
		174, Catching the Perfect Wave: Adaptive Optics and Interferometry in the 21st Century | 
	 
	
		| Page: | 
		81 | 
	 
	
		| Authors: | 
		Diels, Jean-Claude; Biegert, Jens; McGraw, John | 
	 
	
	
		| Abstract: | 
		Introduction; Multichromatic sodium beacon; Two-photon excitation of molecules; Pulse propagation; Temporal and spatial focusing; Creation of a traveling-wave gain towards the source | 
	 
	
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