TY - JOUR
T1 - Experimental observation of enhanced reverse saturable absorption in Bi (2) Se (3) nanoplates doped PMMA thin film
AU - Mondal, Partha
AU - Choubey, Priyanka
AU - Gupta, Anu
AU - Wan, Meher
AU - Massoud, Yehia Mahmoud
N1 - KAUST Repository Item: Exported on 2022-12-01
PY - 2022/11/3
Y1 - 2022/11/3
N2 - By employing the ultrafast Z-scan technique, we characterize the nonlinear absorption property of PMMA/Bismuth Selenide (Bi2Se3) composite with varying concentrations. We report the fabrication of bismuth selenide (Bi2Se3) nanoplate (topological insulator (TI)) doped poly methyl methacrylate (PMMA) thin film with varying doping concentrations. The effect of Bi2Se3 on structural and linear properties of PMMA thin film has been investigated through UV-Vis spectroscopy, scanning electron microscope (SEM), and Energy dispersive x-ray spectroscopy (EDS) elemental mapping techniques. Furthermore, the nonlinear optical absorption property of PMMA and PMMA/Bi2Se3 composites have been performed employing a single beam open aperture z-scan technique under femtosecond laser excitation at 750 nm. The z-scan results exhibit an enhancement of reverse saturable absorption (RSA) property with an increased nonlinear absorption coefficient (β) of the PMMA/Bi2Se3 composites compared to pure PMMA measured with intensity at 320 GW cm−2. The RSA response gets enhanced with the increase in doping concentration also. Our experimental observations reveal that PMMA/Bi2Se3 composite can provide a promising platform to realize photonic devices such as optical limiters, optical switches, and efficient protectors from high power sources.
AB - By employing the ultrafast Z-scan technique, we characterize the nonlinear absorption property of PMMA/Bismuth Selenide (Bi2Se3) composite with varying concentrations. We report the fabrication of bismuth selenide (Bi2Se3) nanoplate (topological insulator (TI)) doped poly methyl methacrylate (PMMA) thin film with varying doping concentrations. The effect of Bi2Se3 on structural and linear properties of PMMA thin film has been investigated through UV-Vis spectroscopy, scanning electron microscope (SEM), and Energy dispersive x-ray spectroscopy (EDS) elemental mapping techniques. Furthermore, the nonlinear optical absorption property of PMMA and PMMA/Bi2Se3 composites have been performed employing a single beam open aperture z-scan technique under femtosecond laser excitation at 750 nm. The z-scan results exhibit an enhancement of reverse saturable absorption (RSA) property with an increased nonlinear absorption coefficient (β) of the PMMA/Bi2Se3 composites compared to pure PMMA measured with intensity at 320 GW cm−2. The RSA response gets enhanced with the increase in doping concentration also. Our experimental observations reveal that PMMA/Bi2Se3 composite can provide a promising platform to realize photonic devices such as optical limiters, optical switches, and efficient protectors from high power sources.
UR - http://hdl.handle.net/10754/686053
UR - https://iopscience.iop.org/article/10.1088/2053-1591/ac9d82
UR - http://www.scopus.com/inward/record.url?scp=85141698364&partnerID=8YFLogxK
U2 - 10.1088/2053-1591/ac9d82
DO - 10.1088/2053-1591/ac9d82
M3 - Article
SN - 2053-1591
VL - 9
SP - 115001
JO - Materials Research Express
JF - Materials Research Express
IS - 11
ER -