Characterization of thermal transport and laser absorption properties of an individual graphitized carbon fiber by applying Raman thermography

•We developed a non-contact method to characterize the thermal transport and laser absorption properties.•This method has been verified by comparing the measured Pt wire’s λ with recommended values.•An individual graphitized carbon fiber’s λa, λ, Rc and α were determined.•Both λ and λa decrease with T rises from 338 K to 496 K, while λ is much higher than λa.•Rc increases with T rise, while the laser absorptivity shows insignificant change.