Generation of high power tunable multicycle teraherz pulses
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Author(s)
Chen, Zhao
Zhou, Xibin
Werley, Christopher Alan
Nelson, Keith Adam
Date Issued
August 2011
Journal
Applied Physics Letters
Publisher
American Institute of Physics
Citation
Chen, Zhao, Xibin Zhou, Christopher A. Werley, and Keith A. Nelson. “Generation of high power tunable multicycle teraherz pulses.” Applied Physics Letters 99, no. 7 (2011): 071102.© 2011 American Institute of Physics.
Version
Final published version
Abstract
We demonstrate generation of high-power, multicycle, and frequency-tunable terahertz pulses with microjoule energies by tilting the intensity front of a quasi-sinusoidal intensity-modulated optical waveform. The spatiotemporally shaped waveform undergoes difference-frequency mixing in lithium niobate,generating a THz phonon-polariton wave whose electromagnetic component is coupled out to free space. The narrowband THz spectrum is tunable between 0.3–1.3 THz, with adjustable bandwidths generally less than 0.1 THz. At 10 Hz and 1 kHz repetition rates, 10 μJ and 1 μJ THz pulse energies are achieved, respectively, over a broad frequency range.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1063/1.3624919
