Title : 
Highly efficient frequency doubling of optical vortex
         
        
            Author : 
Yuta Sasaki;Taximaiti Yusufu;Katsuhiko Miyamoto;Takashige Omatsu
         
        
            Author_Institution : 
Graduate School of Advanced Integration Science, Chiba University 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
         
        
        
        
        
        
            Abstract : 
We present the first demonstration of the ultrahighly efficient second harmonic generation of an optical vortex pulse. An optical-optical efficiency of >70% frequency-doubled vortex output was obtained.
         
        
            Keywords : 
"Frequency conversion","Optical vortices","Laser beams","Nonlinear optics","Optical harmonic generation","Optical pumping","Optical scattering"
         
        
        
            Conference_Titel : 
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2015 11th Conference on
         
        
        
            DOI : 
10.1109/CLEOPR.2015.7376344