• Frontiers of Optoelectronics
  • Vol. 4, Issue 4, 407 (2011)
Jie BI1、2、*
Author Affiliations
  • 1School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China
  • 2Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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    Abstract

    Broadband parametric upconverted conical emission (CE) has been investigated in an isotropic amorphous medium pumped by femtosecond laser pulses, which covers a broad range from 470 to 630 nm. Three theoretical models were analyzed to interpret the angular beam of CE. The CE spectra and their angular positions have been experimentally measured, which can be explained well by nonlinear X-wave model and Cerenkov type phase matching model rather than four-wave mixing (FWM) model.