Novel droplet size and complex refractive index measurement base...

A novel method to measure droplet size and complex refractive index simultaneously by rainbow detecting is presented. A new mathematic model for rainbow pattern of absorbing droplet is built. Based on this model, a series of new formulas to measure droplet imaginary part of refractive index is derived. Then a new inverse algorithm for simultaneously measure droplet size and the complex refractive index is presented, which is verified by simulation experiments under different conditions.