The enhancement of nonlinear absorption of Ag thin film on laser induced defective MoOx buffer layer
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2020.137727
Abstract: Abstract Defect plays a key role in the optical properties of silver thin films. Herein, we introduced the oxygen vacancy defects by laser modification and fabricated the Ag/ir-MoOx thin film. The effects of ir-MoOx on… read more here.
Keywords: absorption; moox; layer; nonlinear absorption ... See more keywords
Nonlinear absorption study in four and five energy level systems
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DOI: 10.1016/j.ijleo.2018.06.088
Abstract: Nonlinear absorption in four and five energy level systems have been studied with the aid of steady-state rate equation approach. We report on the tunability of saturable and reverse saturable absorption as a function of… read more here.
Keywords: absorption; nonlinear absorption; energy level; five energy ... See more keywords
Investigation of nonlinear absorption and the electromagnetically induced transparency in a SMNP-SQD hybrid system by using the Mie theory
Sign Up to like & getrecommendations! Published in 2019 at "Optik"
DOI: 10.1016/j.ijleo.2018.09.155
Abstract: Abstract By using the Mie theory, nonlinear absorption coefficient and electromagnetically induced transparency (EIT) of a hybrid system consisting of GaAs spherical quantum dot (SQD) with ladder model and parabolic potential in the vicinity of… read more here.
Keywords: nonlinear absorption; induced transparency; electromagnetically induced; smnp ... See more keywords
Effect of Cr/Sb doping and annealing on nonlinear absorption coefficients of SnO2 /PMMA nanocomposite films
Sign Up to like & getrecommendations! Published in 2020 at "Materials Chemistry and Physics"
DOI: 10.1016/j.matchemphys.2020.123596
Abstract: Abstract Cr and Sb doped SnO2 nanoparticles were synthesized by hydrothermal method. The structural measurements of as-grown nanoparticles exhibited that the incorporation of the 3% wt. Cr and Sb dopant into the SnO2 crystal structure… read more here.
Keywords: sno2 pmma; pmma nanocomposite; nonlinear absorption; nanocomposite films ... See more keywords
Nonlinear absorption and spatial self-phase modulation in Ag2Se colloidal nanocrystals
Sign Up to like & getrecommendations! Published in 2018 at "Materials Letters"
DOI: 10.1016/j.matlet.2017.11.130
Abstract: Abstract The third-order optical nonlinearities of Ag2Se nanocrystals were investigated by using Z-scan techniques. Large optical susceptibility χ(3) with the imaginary and real parts of 5.0 × 10−11 esu and −(3.0 ± 0.2) × 10−9 esu has been obtained under 1 mW laser excitation,… read more here.
Keywords: phase; nonlinear absorption; absorption spatial; phase modulation ... See more keywords
Zinc Phthalocyanine-Poly (Vinyl Alcohol) nanocomposite films: Low threshold optical limiting properties based on third-order nonlinear absorption response
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2020.106168
Abstract: Abstract In this article, we discuss on an in-depth study of the structure and morphology as well as optical (linear/nonlinear) properties of Zinc Phthalocyanine (ZnPc) - Poly (Vinyl Alcohol) (PVA) nanocomposite films. An investigation into… read more here.
Keywords: absorption; nonlinear absorption; third order; nanocomposite films ... See more keywords
Frequency conversion, nonlinear absorption and carrier dynamics of GaSe:B/Er crystals
Sign Up to like & getrecommendations! Published in 2017 at "Optical Materials"
DOI: 10.1016/j.optmat.2017.02.007
Abstract: Abstract We aimed to investigate the influence of Er3+ rare earth element on the frequency conversion wavelength in boron doped GaSe crystals. It was found that by substitution of Er3+ with B3+, SHG signal shifted… read more here.
Keywords: gase; frequency conversion; nonlinear absorption; gase crystals ... See more keywords
Microstructural parameters and high third order nonlinear absorption characteristics of Mn-doped PbS/PVA nanocomposite films
Sign Up to like & getrecommendations! Published in 2017 at "Optical Materials"
DOI: 10.1016/j.optmat.2017.08.012
Abstract: Abstract In this work, undoped and Mn-doped PbS/PVA nanocomposite films have been successfully fabricated using the simple solution-casting method. Their crystalline structure was examined by X -ray powder diffraction (XRD). XRD pattern show the formation… read more here.
Keywords: pva nanocomposite; nonlinear absorption; doped pbs; nanocomposite films ... See more keywords
D-π-A type conjugated pyrene derivatives: Third-order nonlinear absorption and excited-state dynamics
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DOI: 10.1016/j.optmat.2018.08.073
Abstract: Abstract Two novel conjugated pyrene derivatives (C1 and C2) with D- π -A structures were synthesized to realize broadband reverse saturable absorption (RSA) under femtosecond laser excitation (ranging from 515 to 700 nm) resulting from two-photon… read more here.
Keywords: absorption; excited state; nonlinear absorption; pyrene derivatives ... See more keywords
Genuine two photon absorption and excited state absorption in Fe nanowires decorated β-BaB2O4 nanoplatelets
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DOI: 10.1016/j.optmat.2019.109267
Abstract: Abstract Concentration dependent nonlinear absorption and optical limiting action of Fe nanowires decorated β-BaB2O4 nanoplatelets was studied by Z-scan experiment using Q-switched nano pulsed Nd:YAG green laser. Open aperture Z-scan curves with valley like pattern… read more here.
Keywords: nonlinear absorption; decorated bab2o4; nanowires decorated; state ... See more keywords
Tuning the energy bandgap and nonlinear absorption coefficients of CdO nanocomposite films with doping and annealing process
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DOI: 10.1016/j.optmat.2020.109880
Abstract: Abstract The effects of doping and annealing on the linear and nonlinear optical properties of CdO, CdO:Cr and CdO:Sb nanocomposite films are investigated. The nanoparticles were synthesized with hydrothermal method. Their films were obtained by… read more here.
Keywords: absorption; doping annealing; nonlinear absorption; nanocomposite films ... See more keywords