We study numerically and experimentally the process of cascaded four-wave mixing of a vortex beam imposed on short laser pulses propagating in a gas cell. We demonstrate that such cascaded nonlinear process leads to the generation of white-light optical vortices with well preserved vortex phase profile.
|Title of host publication||Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011|
|Number of pages||3|
|Publication status||Published - 2011|
|Event||International Quantum Electronics Conference (IQEC), 2011 - Sydney Convention and Exhibition Centre , Sydney, Australia|
Duration: 28 Aug 2011 → 1 Sep 2011
|Conference||International Quantum Electronics Conference (IQEC), 2011|
|Period||28/08/11 → 1/09/11|