Coherent control of terahertz harmonic generation by a chirped few-cycle pulse in a quantum well

Details Coherent control of terahertz harmonic generation by a chirped few-cycle pulse in a quantum well Coherent control of terahertz harmonic generation by a chirped few-cycle pulse in a quantum well

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12a3009c&link_type=abstract

New Journal of Physics, Volume 12, Issue 1, pp. 013009 (2010).

Physics

6

Scientific paper

We present results on the occurrence of ultrashort terahertz harmonic generation (THG) driven by a millimeter nonlinear chirped few-cycle laser pulse in a symmetric double quantum well. By solving the effective nonlinear Bloch equations, THG with a generic plateau and cutoff can be produced. The time-frequency characteristic of the ultrashort terahertz harmonic spectrum is analyzed in detail by means of the wavelet transform of induced dipole acceleration. Furthermore, an ultrabroad supercontinuum terahertz harmonic spectrum can be generated and an isolated ultrashort terahertz pulse can be obtained at the cutoff region by choosing the appropriate chirping rate parameters.

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