Thumbnail Image
Publication

Role of thermal and photoannealing on nonlinear optical response of Ge30Se55Bi15 thin films

Date
2020
Abstract
In this article, we employed the nanosecond Z-scan technique to demonstrate the nonlinear optical response in Ge30Se55Bi15 thin films after thermal and photoannealing. The intensity dependent open aperture Z-scan traces reveal that all the samples, i.e., as-prepared, thermal, and photoannealed thin films, exhibit reverse saturable absorption. The experimental results indicate that both thermal and photoannealing can be efficiently used to enhance the nonlinear absorption coefficient (β) compared to the as-prepared sample. We further demonstrate that the β value of thermally annealed and as-prepared samples increases significantly at higher intensities. On the contrary, the β value of the photoannealed sample does not exhibit appreciable changes against the intensity variation.
Supervisor
Description
peer-reviewed
Publisher
American Institute of Physics
Citation
Journal of Applied Physics;127, 075102
Collections
Bernal Institute
Show all metadata
Files
Thumbnail Image
Khan_2020_Role.pdf
Adobe PDF, 1.26 MB
Keywords
Z-scan technique
ULRR Identifiers
https://hdl.handle.net/10344/8656
 https://doi.org/10.34961/14891
Funding code
Funding Information
Research in Nuclear Science (BRNS), Department of Physics, Indian Institute of Science Education and Research, Bhopal (IISER)
Sustainable Development Goals
External Link
License
Embedded videos