科研之友
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摘要
We demonstrate that a superoscillating in time signal may be obtained as a nonlinear response to a single low-frequency harmonic input. Using the realization of a superoscillating function proposed by Huang et al. (J Opt A Pure Appl Opt 9:S285, 2007), which is a mixture of five different harmonics, as an example, we synthesize the response function of such a nonlinear transformer and investigate its robustness with respect to the frequency and amplitude variations of the input signal.
- 出版日期2015-11
