Strong reverse saturable absorption effect of a nonaggregated phthalocyanine-grafted MA–VA polymer

2018 ◽  
Vol 6 (36) ◽  
pp. 9767-9777 ◽  
Author(s):  
Jun Chen ◽  
Yong Xu ◽  
Mihong Cao ◽  
Yafei Wang ◽  
Tongxiang Liang ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Vinyl Acetate ◽  
Nonlinear Absorption ◽  
Optical Limiting ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Absorption Effect ◽  
Grafted Polymer ◽  
Optical Limiting Effect

The amino-substituted phthalocyanines (TA-PcInCl) with high optical limiting effect are grafted onto the copolymer matrix of maleic anhydride (MA) and vinyl acetate (VA), to obtain a novel phthalocyanine grafted polymer (MA–VA-PcInCl) with superior nonlinear absorption effect.

Nonunear Absorption in Phthalocyanines and Naphthalocyanines

1993 ◽  
Vol 328 ◽  
Author(s):  
James S. Shirk ◽  
Steven R. Flom ◽  
J. R. Lindle ◽  
F. J. Bartoli ◽  
Arthur W. Snow ◽  
...  
Keyword(s):  
Ground State ◽  
Nonlinear Absorption ◽  
Optical Limiting ◽  
Wavelength Dependence ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Ground State Absorption

ABSTRACTThe wavelength dependence of the nonlinear absorption for lead tetrakis (cumyl-phenoxy) phthalocyanine (PbPc(CP)4) and lead octa (α-pentoxy) napthalocyanine (PbNc(α-PO)8) are reported. The ground state absorption and the reverse saturable absorption are substantially red shifted in PbNc (α-PO)8 as expected. Such control over the reverse saturable absorption is crucial to design optical limiting materials for specific wavelength ranges.

OPTICAL LIMITING IN TeO2–ZnO GLASS FROM Z-SCAN TECHNIQUE

2011 ◽  
Vol 20 (03) ◽  
pp. 351-356 ◽  
Author(s):  
ROSE LEENA THOMAS ◽  
VASUJA ◽  
MISHA HARI ◽  
B. NITHYAJA ◽  
S. MATHEW ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Absorption ◽  
Optical Limiting ◽  
Nonlinear Material ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Absorption Coefficients ◽  
Single Beam ◽  
Optical Limiter

TeO 2– ZnO glasses were prepared by conventional melting procedure, and their optical properties were determined. In the present work, we measured the optical non-linearity of the glass. The measurement was carried out using a single beam z-scan technique given by Sheike Bahe et al. We could observe that the material exhibits reverse saturable absorption, and the effective nonlinear absorption coefficients are numerically evaluated. This study is important in identifying the nonlinear material as a Reverse Saturable Absorption (RSA) based optical limiter.

Synthesis, self-assembly and nonlinear optical activity of selenium-annulated perylene diimide

2020 ◽  
Vol 56 (21) ◽  
pp. 3123-3126
Author(s):  
Guo-Bin Huang ◽  
Lei Shen ◽  
Jie Liu ◽  
Wen-Fa Zhou ◽  
Kaspars Traskovskis ◽  
...  
Keyword(s):  
Optical Activity ◽  
Self Assembly ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Perylene Diimide ◽  
Absorption Characteristic ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Optical Limiting Effect

A novel Se-annulated PDI derivative with a reverse saturable absorption characteristic and an optical limiting effect was designed and synthesized.

scholarly journals Tunable nonlinear optical responses of few-layer graphene through lithium intercalation

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Chenxi Zhang ◽  
Ganying Zeng ◽  
Renyan Zhang ◽  
Yuxiang Tang ◽  
Qirui Liu ◽  
...  
Keyword(s):  
Nonlinear Absorption ◽  
Nonlinear Optical ◽  
Photon Absorption ◽  
Lithium Intercalation ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Absorption Effect ◽  
Layer Graphene ◽  
Ideal System ◽  
Few Layer Graphene

Abstract Intercalation has been demonstrated to be a powerful tool for tuning the physical and chemical properties of two-dimensional (2D) materials, providing the highest possible doping level and an ideal system to study various electronic states. In this work, we demonstrate that the nonlinear absorption effect of few-layer graphene (about 6–8 layers) is changed from saturable absorption (SA) to reverse saturable absorption (RSA) after lithium intercalation. This is attributed to the increase of Fermi energy owing to the charge transfer from Li to graphene layers in intercalated compounds (LiC6). And the change of nonlinear absorption effect is revisable after deintercalation. In addition, the modulation depth of RSA in lithiated graphene is found to rise with the decrease of incident laser wavelength, different from that of pristine graphene. Besides, the dispersion relationships of degenerate and nondegenerate two-photon absorption are analyzed from the results of nonlinear absorption and transient dynamics of lithiated graphene, indicating the 1.91–2.21 eV upshift of the Fermi surface. Our findings of the intercalation-tunable nonlinear optical absorption effect pave the way for the construction of nonlinear optical devices based on 2D intercalation compounds.

Optimization of Reverse Saturable Absorber Limiters: Material Requirements and Design Considerations

1994 ◽  
Vol 374 ◽  
Author(s):  
D. J. Hagan ◽  
T. Xia ◽  
A. Dogariu ◽  
A. A. Said ◽  
E. W. Van Stryland
Keyword(s):  
Nonlinear Absorption ◽  
Entire Length ◽  
Nonlinear Material ◽  
Propagation Path ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Individual Element ◽  
Analytic Model ◽  
Molecular Density ◽  
Optimized Distribution

AbstractWe present numerical beam-propagation simulations of optimized reverse-saturable absorption (RSA) based optical limiters where the depth of focus of the input beam is much smaller than the thickness of the nonlinear material. The optimization is achieved by allowing the molecular concentration to vary along the propagation path, allowing the entire length of the limiter to reach the maximum possible nonlinear absorption before eventual damage to the limiter. We review in detail the analytic model originally derived by Miles [1] to determine the design and performance of such limiters. This model requires the usual 5-level model used in the numerical solution to be approximated by a quasi-three-level system. We show that this effective 3-level excited-state cross section is both pulsewidth and fluence dependent. The numerical propagation output shows that there is considerable diffractive beam distortion, which cannot be accounted for in the analytic model. The end result is that while there is qualitative agreement with numerical results, the magnitude of the limited output can be an order-of-magnitude underestimated. We determine that the fluence level at all parts of the limiter must be at least ten times the saturation fluence to efficiently utilize the nonlinear absorption. We further describe how the optimized distribution of molecular density is the limit of the multi-element tandem limiter for an infinite number of elements. By carefully accounting for saturation over the entire length of each individual element, we show how a multi-element limiter may be designed to closely approach the performance of the optimized distribution for as few as four elements. With current materials technology the damage threshold of solid hosts needed to vary the molecular density is much lower than that of glass cuvettes used for liquid based limiters. Therefore, a multi-element liquid based tandem limiter can be used in full saturation so that better limiter performance should be obtained. Ultimately, however, the operation of all RSA-based limiters involves a strict trade-off between performance and linear transmittance.

Reverse saturable absorption and optical limiting in indanthrone dyes

1996 ◽  
Vol 62 (3) ◽  
pp. 293-297 ◽  
Author(s):  
Rama Chari ◽  
S. R. Mishra ◽  
H. S. Rawat ◽  
S. M. Oak
Keyword(s):  
Optical Limiting ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption

Dynamic Response Characteristics of Super-Gaussian Pulse to Reverse Saturable Absorption Effect

2012 ◽  
Vol 39 (2) ◽  
pp. 0202002
Author(s):  
程坤 Cheng Kun ◽  
赵军普 Zhao Junpu ◽  
胡东霞 Hu Dongxia ◽  
代万俊 Dai Wanjun ◽  
袁强 Yuan Qiang ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Gaussian Pulse ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Absorption Effect ◽  
Response Characteristics ◽  
Dynamic Response Characteristics

Nanosecond reverse saturable absorption and optical limiting in (Me_4N)_2[Cd(dmit)(Sph)_2]

2001 ◽  
Vol 18 (10) ◽  
pp. 1464 ◽  
Author(s):  
Zhenrong Sun ◽  
Minghong Tong ◽  
Heping Zeng ◽  
Liangen Ding ◽  
Zugeng Wang ◽  
...  
Keyword(s):  
Optical Limiting ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption

Nonlinear absorption in tetrathia[22]porphyrin(2.1.2.1)s: visualizing strong reverse saturable absorption at non-resonant excitation

RSC Advances ◽  
2016 ◽  
Vol 6 (27) ◽  
pp. 22659-22663 ◽  
Author(s):  
Kamaljit Singh ◽  
Shafali Arora ◽  
Krishnandu Makhal ◽  
Paramjit Kaur ◽  
Debabrata Goswami
Keyword(s):  
Nonlinear Absorption ◽  
Potential Application ◽  
Optically Active ◽  
Resonant Excitation ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Threshold Values ◽  
Optical Limiters ◽  
The Family ◽  
New Entry

meso-Substituted neutral, aromatic tetrathia[22]porphyrin(2.1.2.1)s represent a new entry in the family of nonlinear optically active porphyrins. The low fluence threshold values of these porphyrins endorse potential application as optical limiters.

Nonlinear Absorption Properties of Spherical Gold Colloidal Nanoparticles

2012 ◽  
Vol 476-478 ◽  
pp. 923-927 ◽  
Author(s):  
Chan Zheng ◽  
Xiao Yun Ye ◽  
Xue Qing Xiao
Keyword(s):  
Nonlinear Absorption ◽  
Laser Pulses ◽  
Phase Method ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Colloidal Nanoparticles ◽  
Free Carrier Absorption ◽  
Absorption Properties ◽  
Liquid Phase Method ◽  
Carrier Absorption

Spherical gold colloidal nanoparticles were prepared used traditional liquid phase method and the corresponding nonlinear absorption properties were investigated by open aperture Z-scan technique using 8 ns laser pulses of 532 nm. The gold colloidal nanoparticles exhibited a transform from saturable absorption (SA) to reverse saturable absorption (RSA) at relatively higher irradiation intensities. The SA behavior presumably owes to the bleach of ground-state surface plasmon resonance (SPR) absorption, while the RSA might result from high excited-stated free carrier absorption.

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