Abstract
With bandgap light illumination of 514.5 nm wavelength from an argon ion laser, photobleaching was observed in amorphous GeS 2 thin films and the optical transmittance edge shifted to shorter wavelength. Photobleaching in well-annealed films is reversible and could be erased by annealing near the glass-transition temperature but it was irreversible in un-annealed films. It was found that the magnitude of shift Δ λ increased with the increase of the illumination light intensity and illumination time. The reversibility of photobleaching in amorphous GeS 2 thin films could make it a promising medium for optical recording.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
