弱光下的非线性效应

Nonlinear effect under weak light

在弱光下的非线性效应研究是高度创新的多学科前沿交叉热点,它突破经典非线性光学的效率低、介质损伤、频率限制等局限,又具有量子纠缠量子信息等特点,在微弱信号检测、介质微观结构探测、新型激光量子器件研制等领域有重大意义。介绍了弱光下非线性效应的物理图像以及当前研究动态和应用前景。

The nonlinear effect under weak light is in the foreland of multi-subjects. It breaks the limitation of damaging medium, frequency restraint and low efficiency in conventional nonlinear optics, and exhibits new features with quantum entanglement and quantum information. It is significant in detecting weak signal, probing micro-construction of the medium and making new type of laser quantum devices. The physical pictures and principles of the nonlinear effect under weak light are reviewed. The potential applications and new developments are also discussed.