Xia Zongju, Zou Tinghua. Conical emission from near-resonant laser excited sodium vapor[J]. Chinese Journal of Lasers, 1982, 9(4): 204
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We have observed a conical emission from sodium vapor (N-1014cm-3) illuminated by a near-resonant dye laser (detuning on the short-wavelength side of D1 or D2 line). Spatial, spectral and polarization characteristics of this emission have been measured.The results are compared with the experiments using barium vapor.