Arvind Sharma

As the wavelength decreases, in general, the real and imaginary parts of the RI increase. 2 empirical equations that model it are the Cauchy and Sellmeier approaches.

See slide 17 in:

Optical properties of the three forms of titanium dioxide http://tinyurl.com/pbgf9hj

and 19 onward in:

Optical Properties: the Gladstone-Dale approach

http://www.brainshark.com/brainshark/vu/view.asp?pi=141109&text=M021507

Changes with temperature are very small. Why do you believe you'd need to correct for this? What is the application?

There is also a morphology and size dependence of the RI.

There's some limited information in the attached.