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We have investigated the photodiffractive effect induced by resonant excitations in semiconductor microstructures by means of the multiple wave coupling method. We have derived set of multiple wave coupling equations for photodiffractions in the case of coexistence of refraction and absorption gratings. Numerical results of the equations for a few typical cases have been analysed in detail, and their physical significance is also discussed. 相似文献
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A SINGLE-BEAM OPTICAL TRAP FOR AIR BUBBLES IN A LIQUID AND THE CHANGE OF THE OPTICAL FIELD 下载免费PDF全文
We report a single-beam optical trap for particles with refractive index lower than that of the surrounding medium—the air bubbles in the liquid. This phenomenon is explained by radiation pressure. 相似文献