Abstract
Two-dimensional multicolored transverse arrays were demonstrated experimentally for the first time in a quadratic nonlinear medium. Cascaded noncollinear quadratic processes took place between input pulses and quadratic spatial solitons formed by spatial breakup of one of the pump beams with small ellipticity. Two-dimensional multicolored transverse arrays as well as transient grating were formed by cascaded noncollinear quadratic processes. Synchronously seeded supercontinuum pulses were diffracted and amplified, resulting in two-dimensional multicolored up-conversion parametric amplification. These two kinds of two-dimensional patterns were readily suppressed by seeding with weak second harmonic pulses in one of the pump pulses.
| Original language | English |
|---|---|
| Pages (from-to) | 6999-7008 |
| Number of pages | 10 |
| Journal | Wuli Xuebao/Acta Physica Sinica |
| Volume | 56 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2007 |
| Externally published | Yes |
Keywords
- Cascaded noncollinear quadratic nonlinearity
- Two-dimensional multicolored arrays
- Weak beam control