February 2016
Spotlight Summary by Jean-Baptiste Masson
Carrier envelope phase shifter for broadband terahertz pulses
Recent developments in terahertz (THz) generation technologies allow high-energy beams to be generated and thus the study of terahertz-matter interactions for high-fields. A key element of these interactions is the phase of the carrier frequency with respect to the peak of the THz pulses’ envelope: the Carrier Envelope Phase (CEP). The authors of this Optics Letters article demonstrate broadband control of the CEP using 3 optical components: a quarter-wave plate, a half-wave plate, and another quarter-wave plate whose alignment controls both the CEP and the polarization angle. Experimental implementation shows good agreement with analytical calculations. Fine control of CEP is expected to allow complex interactions between high-energy THz pulses and matter to be more precisely investigated.
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Article Information
Carrier envelope phase shifter for broadband terahertz pulses
Yoichi Kawada, Takashi Yasuda, and Hironori Takahashi
Opt. Lett. 41(5) 986-989 (2016) View: Abstract | HTML | PDF