Intense coherent terahertz radiation via two-color photoionization in air is examined experimentally and interpreted as a photocurrent effect by the symmetry-broken laser field. THz power scalability is also tested experimentally.
© 2007 OSA
K. Kim, B. Yellampalle, J. H. Glownia, A. J. Taylor, and G. Rodriguez, "Intense Coherent THz Pulse Generation by Two-Color Photoionization in Air," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper CThI3.
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