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1篇 您的检索式:作者名="LUCA TOMARCHIO"
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1Impact of laser chirp on the polarization of terahertz from two-color plasma显示文摘Two-color plasma,induced by two lasers of different colors,can radiate ultra-broadband and intense terahertz(THz)pulses,which is desirable in many technological and scientific applications.It was found that the polarization of the emitted THz depends on the phase difference between the fundamental laser wave and its second harmonic.Recent investigation suggests that chirp-induced change of pulse overlap plays an important role in the THz yield from two-color plasma.However,the effect of laser chirp on THz polarization remains unexplored.Hereby,we investigate the impact of laser chirp on THz polarization.It is unveiled that the chirp-induced phase difference affects THz polarization.Besides,positive and negative chirps have opposite effects on the variation of the THz polarization versus the phase difference.The polarization of THz generated by a positively chirped pump laser rotates clockwise with an increasing phase difference,while it rotates anticlockwise when generated by a negatively chirped pump laser.SEN MOU LUCA TOMARCHIO ANNALISA D’ARCO MARTA DI FABRIZIO SALVATORE MACIS ALESSANDRO CURCIO LUIGI PALUMBO STEFANO LUPI MASSIMO PETRARCA 2023Photonics Research2023,11,6:0
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