Results 1 to 10 of about 2,466 (119)

Efficient Optical Limiting in Carbon-Nanohorn Suspensions

Energies, 2021
Nonlinear optical properties of aqueous dispersions of single-wall carbon nanohorns (SWCNH) are investigated by a simple and original technique, relating nonlinear transmittance measurements with semi-empirical model fitting and allowing to identify the ...
Elisa Sani, Nicolò Papi, Luca Mercatelli, Aldo Dell’Oro   +3 more
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Functional nonlinear optical nanoparticles synthesized by laser ablation

Opto-Electronic Science, 2022
Nonlinear optics is an important research direction with various applications in laser manufacturing, fabrication of nanostructure, sensor design, optoelectronics, biophotonics, quantum optics, etc.
Lianwei Chen, Minghui Hong
doaj   +1 more source

The largest aluminum molecular rings: Phenol‐thermal synthesis, photoluminescence, and optical limiting

Aggregate, 2023
It is of great interest to modulate the photophysical properties by atomically precise chemical control. The incorporation of conjugated ligands into crystalline materials provides a platform for molecular‐level interpretation of the structure‐activity ...
San‐Tai Wang, Ya‐Jie Liu, Cheng‐Cheng Feng, Wei‐Hui Fang, Jian Zhang   +4 more
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Optical limiting via spontaneously generated coherence

Scientific Reports, 2023
We investigate the reverse saturable absorption (RSA) and optical limiting (OL) in a three-level V-type quantum system considering the effect of the spontaneously generated coherence (SGC). It is shown that in the absence of the SGC effect, the saturable
Abbas Silatan, Mohsen Ghaderi GoranAbad, Mohammad Mahmoudi   +2 more
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Enhanced non-linear optical properties of porphyrin-based polymers covalently functionalized with graphite phase carbon nitride

Frontiers in Chemistry, 2022
In our work, a flurry of original porphyrin-based polymers covalently functionalized g-C3N4 nanohybrids were constructed and nominated as PPorx-g-C3N4 (x = 1, 2 and 3) through click chemistry between porphyrin-based polymers with alkyne end-groups ...
Chen Liang, Xu Cui, Wenyue Dong, Jieming Qin, Qian Duan, Qian Duan   +5 more
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Femtosecond Third-Order Non-Linear Optical Properties of Unconstrained Green Fluorescence Protein Chromophores

Frontiers in Physics, 2022
We report herein results on the third-order non-linear optical (NLO) properties of four structurally unconstrained green fluorescence protein (GFP) chromophores, namely, 1, 2, 3, and 4.
Md Soif Ahmed, Chinmoy Biswas, Dipanjan Banerjee, Prabhakar Chetti, Jye-Shane Yang, Venugopal Rao Soma, Sai Santosh Kumar Raavi   +6 more
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Enhancement of Two-Photon Absorption in Boron-Dipyrromethene (BODIPY) Derivatives

Molecules, 2022
The linear and nonlinear optical properties of two BODIPY derivatives, 1,7-Diphenyl-3,5-bis(9,9-dimethyl-9H-fluoren-2-yl)-boron-diuoride-azadipyrromethene (ZL-61) and 1,7-Diphenyl-3,5-bis(4-(1,2,2-triphenylvinyl)phenyl)-boron-diuoride-azadipyrromethene ...
Guanzheng Song, Zhongguo Li, Yanbing Han, Jidong Jia, Wenfa Zhou, Xueru Zhang, Yuxiao Wang, Yinglin Song   +7 more
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How Micelles Influence the Optical Limiting Properties of Zinc Porphyrins and J-Aggregates for Picosecond Pulse Trains

Axioms, 2022
In this work, we studied nonlinear dynamics and optical limiting (OL) effects of pulse trains in zinc porphyrins meso-tetrakis methylpyridiniumyl (Zn2+TMPyP) and meso-tetrakis sulfonatophenyl (Zn2+TPPS) and porphyrin J-aggregates.
Quan Miao, Erping Sun, Yan Xu
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Optical Limiting of Carbon Nanohorn-Based Aqueous Nanofluids: A Systematic Study

Nanomaterials, 2020
Nowadays, the use of lasers has become commonplace in everyday life, and laser protection has become an important field of scientific investigation, as well as a security issue. In this context, optical limiters are receiving increasing attention.
Elisa Sani, Nicolò Papi, Luca Mercatelli, Simona Barison, Filippo Agresti, Stefano Rossi, Aldo Dell’Oro   +6 more
doaj   +1 more source

Study of two-photon absorption and optical limiting

Bibechana, 2021
Simultaneous absorption of two photons of identical or different frequencies to excite a system that is atom or molecule from the ground state to excited state has great importance.
Bal Ram Ghimire
doaj   +3 more sources