Rayleigh and hyper-Rayleigh scatterings in solution

✍ Scribed by Wei-Xing Xu

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 270 KB
• Volume: 36
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/j.optlastec.2003.07.002

✦ Synopsis

A concept of concentration gradient induced by incident radiation which describes the dependence of the Rayleigh (I!) and hyper-Rayleigh (I2!) intensities on the power as well as background concentration is proposed. In our previous paper, we have demonstrated the e ect of concentration gradient on the ÿrst-, second-and third-order polarizabilities and discussed that concentration gradient in the system can be created in a di erent way. Here we demonstrate the most important origin of the concentration gradient in a system, i.e., the concentration gradient generation by the incident radiation. The formulae developed here can be applied to describe the optical behaviour of solution and gas-phase systems.