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We demonstrate a dramatic enhancement of the below-threshold harmonics in the vicinity of atomic resonances. The dependence on the driving laser carrier-envelope phase suggests a nonperturbative mechanism. Phase matching promises scalability to microJoule pulse energies.
Broadband high harmonic generation produced from 400 nm sub-10 fs driving pulses is reported. The results indicate an efficient method of generating intense single attosecond pulses from 400 nm driving lasers.
This paper proposes an improved SVPWM-based digital predictive current controller for grid-side of motor energy feedback inverters. Firstly, a predictive current control strategy in the inner loop was adopted to minimize the system delay and improve the current response so that the grid-side current harmonics can be sharply reduced. Besides, load current feedforward compensation was added to reduce...
First experimental measurement of ellipticity dependence of high harmonics produced from 400 nm driving pulses is reported and compared with harmonics produced from 800 nm driving pulses in an argon filled gas cell.
Increasing demand for premium electric power, in terms of both quality and reliability, and emerging new energy technologies have led to the development of DG. In the process of connected DG with the power grid, harmonic/inter-harmonic is very serious problem. A new method based on modified MM filter and HHT is proposed to detect harmonic/inter-harmonic caused by the power electric elements. Researched...
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