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14 March 2015 Pulse shaping of the intense few-cycle terahertz pulses for nonlinear spectroscopy
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Abstract
We demonstrate the arbitrary control of the carrier-envelope phase of intense few-cycle THz pulses by using a simple passive component with high transmission efficiency based on a parallel metal plate waveguide. In this component, the carrier-envelope phase is altered by using the difference between the group and phase velocities. We demonstrate pulseshape- dependent nonlinear spectroscopy using these passive optics for Ge:Sb, where strong transitions between the shallow acceptor levels are located at 2.0 THz.
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Masaya Nagai, Yutaka Kamon, Eiichi Matsubara, Yosuke Minowa, and Masaaki Ashida "Pulse shaping of the intense few-cycle terahertz pulses for nonlinear spectroscopy", Proc. SPIE 9361, Ultrafast Phenomena and Nanophotonics XIX, 936107 (14 March 2015); https://doi.org/10.1117/12.2079005
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