Journal Article


R. Naik
K.V. Adarsh
J.R. Aswin
Pritam Khan
Adyasha Aparimita



thin films optical films nonlinear response optical absorption thermal z scan technique experimental

Role of thermal and photoannealing on nonlinear optical response of Ge30Se55Bi15 thin films (2020)

Abstract The full text of this article will not be available in ULIR until the embargo expires on the 18/02/2021 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.
Collections Ireland -> University of Limerick -> Centres Science and Engineering
Ireland -> University of Limerick -> Faculty of Science and Engineering
Ireland -> University of Limerick -> Bernal Institute

Full list of authors on original publication

R. Naik, K.V. Adarsh, J.R. Aswin, Pritam Khan, Adyasha Aparimita

Experts in our system

Pritam Khan
University of Limerick
Total Publications: 4