“液体”光不能喝,但对它的认识会导致超快光计算机的问世。这是西班牙维哥大学光学教授Humerto Michinel及其在圣提戈大学和瑞典查默斯技术大学同事们的断言。这些科学家让激光束通过特殊的晶体,发现对一定功率,光束达到凝聚态,其碰撞动力学类似一个液滴。 Michinel说,激光束类似于由光子组成的气体。利用这个类比,输入一种非线性光学材料(三五阶光学材料)的光束引起光子以不同寻常的方式与其他光子相互作用。在数字模拟中,光子凝聚在一起,显示表面张力,产生旋涡等液滴的所有性质(见图)。利用具有1024点栅格的标准傅里叶束传播,模拟 “Liquid” light can not drink, but its understanding will lead to the advent of ultra-fast light computer. This is Humerto Michinel, professor of optics at the University of Vigo, Spain, and his assertions with colleagues at the University of Santilig and the Chalmers University of Technology in Sweden. These scientists let the laser beam through a special crystal, found to a certain power, the beam reaches the condensed state, its collision kinetics similar to a droplet. Michinel said the laser beam is similar to a gas consisting of photons. Using this analogy, a light beam entering a non-linear optical material (third- and fifth-order optical materials) causes photons to interact with other photons in unusual ways. In digital simulations, photons are condensed together to show the surface tension, creating all the properties of a droplet such as a vortex (see photo). Propagation using a standard Fourier beam with a 1024-point grid, simulation