Results 1 to 10 of about 8,159 (215)
Broadband saturable absorption in germanene for mode-locked Yb, Er, and Tm fiber lasers [PDF]
Nanophotonics, 2022 Passively mode-locked lasers have been widely investigated as one of the effective methods to obtain ultrashort pulses. As an important part of passively mode-locked fiber lasers, the exploration of 2D material-based saturable absorber has become one of ...
Wang Qingbo +7 more
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Substrate and Excitation Intensity Dependence of Saturable Absorption in Perovskite Quantum Dot Films [PDF]
Nanomaterials, 2023 Saturable absorption in perovskite quantum dot (PQD) films, leading to saturation in photoluminescence (PL), is reported. PL of drop-casting films was used to probe how excitation intensity and host–substrate influence the growth of PL intensity. The PQD
Mithun Bhowmick +4 more
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Controlling Stimulated Emission via Intramolecular Charge Transfer in Amino-Coumarin Dyes: Switching from Reverse Saturable to Saturable Absorption [PDF]
MoleculesGiven the pivotal role of coumarins as tunable nonlinear optical (NLO) materials for advanced photonics, this study aims to decipher the regulatory mechanisms governing their excited-state dynamics and nonlinear absorption.
Jidong Jia +6 more
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Intrinsic optical bistability via switching between saturable and reverse saturable absorption [PDF]
Scientific ReportsWe present a novel approach to achieving intrinsic optical bistability and multistability through the interplay between saturable and reverse saturable absorption. Our findings reveal that the stable points on the optical bistability curve align with the
Seyed Morteza Mousavi, Mohammad Mahmoudi
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2D Chalcogenide Thin Films for Super-Resolved Laser Structuring [PDF]
EPJ Web of Conferences, 2023 The saturable absorption behaviour associated with chalcogenide thin films has been investigated and optimized using Z-Scan Technique. Huge saturable absorption responses (of the order of 10^-7 m/W) were observed for the Bismuth Selenide thin films ...
Karimbana-Kandy Arjun +3 more
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Femtosecond Optical Nonlinearity of Nanodiamond Suspensions
Applied Sciences, 2021 High pressure-high temperature (HP-HT) nanodiamonds and detonation nanodiamonds have unique optical properties and are promising materials for various applications in photonics.
Gennady M. Mikheev +6 more
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Graphene Saturable Absorber Mirrors for Silicon Photonic Platforms
IEEE Photonics Journal, 2022 We employ graphene saturable absorption for the theoretical demonstration of saturable absorption mirrors based on planar silicon photonic Bragg gratings.
Dimitrios Chatzidimitriou +2 more
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مجلة علوم ذي قار, 2023 The initial transmission effect on the activity of Cr+4: YAG saturable absorber with Er +3 doped fiber laser was investigated. Software computer program was built in this study for solving the rate equations model by Rung - Kutta –Fehlberg numerical ...
Zainab Ali +4 more
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Strengthened Optical Nonlinearity of V2C Hybrids Inlaid with Silver Nanoparticles
Nanomaterials, 2022 The investigation of nonlinear optical characteristics resulting from the light–matter interactions of two-dimensional (2D) nano materials has contributed to the extensive use of photonics.
Yabin Shao +5 more
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Nanomaterials, 2022 We report on all-optical devices prepared from WSe2 combined with drawn tapered fibers as saturable absorbers to achieve ultrashort pulse output. The saturable absorber with a high damage threshold and high saturable absorption characteristics is ...
Si Chen +7 more
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