Measurement of thermooptic coefficient in lead sulfide using laser single-beam scanning technique

الملخص EN

In this work, the single beam scanning technique was employed to express the nonlinear interaction between laser radiation and semiconductor material (lead sulfide) as well as to determine the thermo optic coefficient of the material (lead sulfide).

Direct measurement, low cost and reliability are the main features of this technique.

The value of the thermo optic coefficient was determined to be-5.8x10-5 K-1 for PbS thin film.

Due to authors review, this is the first attempt in Iraq to measure such parameter in semiconductor thin films.