نتایج جستجو برای: frequency effect

تعداد نتایج: 2059493  

Journal: :Japanese Journal of Radiological Technology 1995

Journal: :UC Berkeley Phonology Lab Annual Reports 2009

Journal: :The Journal of the Acoustical Society of America 1975

Journal: :Chinese Physics B 2021

By using Dirac–Heisenberg–Wigner formalism we study electron–positron pair production for linear, elliptic, nearly circular, and circular polarizations of electric fields with symmetrical frequency chirp, obtain momentum spectra yield. The difference results among polarized is obvious the small chirp. When chirp parameter increases, tend to exhibit multiphoton generation that characterized by m...

Journal: :IOP Conference Series: Materials Science and Engineering 2021

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