HIGHLIGHTS
- who: Quanjun Wang from the (CAS), China East China University of Technology, China have published the paper: Theoretical treatment on externally-seeded superradiance from N+2 in femtosecond laser filamentation in low-pressure nitrogen, in the Journal: (JOURNAL)
- what: Next, the authors investigate the development of u03b8 when t u2265 u03c4r.
- how: In the article the relative low pressures of nitrogen gas are used and the dipole-dephasing time is set to be 0. The obtained analytic results show clearly how the macroscopic dipole evolves and are compared with the experimental ones that . . .

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