Montina A, Bortolozzo U, Residori S, Arecchi F T
Dipartimento di Fisica, Università di Firenze, via Sansone 1, 50019 Sesto Fiorentino (FI), Italy.
Phys Rev Lett. 2009 Oct 23;103(17):173901. doi: 10.1103/PhysRevLett.103.173901. Epub 2009 Oct 19.
A unidirectional optical oscillator is built by using a liquid crystal light valve that couples a pump beam with the modes of a nearly spherical cavity. For sufficiently high pump intensity, the cavity field presents complex spatiotemporal dynamics, accompanied by the emission of extreme waves and large deviations from the Gaussian statistics. We identify a mechanism of spatial symmetry breaking, due to a hypercycle-type amplification through the nonlocal coupling of the cavity field.
通过使用液晶光阀构建了一个单向光学振荡器，该光阀将泵浦光束与近球形腔的模式耦合。对于足够高的泵浦强度，腔场呈现出复杂的时空动力学，伴随着极端波的发射以及与高斯统计的大偏差。我们确定了一种空间对称性破缺机制，这是由于通过腔场的非局部耦合进行超循环型放大所致。
