We demonstrate a new method that requires no extra cavities in HHG with the aid of resonant plasmons within a metallic nanostructure. The harmonics of higher than 15thcould be observed with various gas jets.
© 2008 The Optical Society
S. Kim, J. Jin, I. Park, and S. Kim, "High Order Harmonic Generation Based on Resonant Plasmon Field Enhancement," in Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing, OSA Technical Digest (CD) (Optical Society of America, 2008), paper FTuBB2.
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