Anionic Surfactant Sensing by Optical Properties of Erythrosin B

2020 ◽  
Vol 18 (1) ◽  
pp. 43-46
Author(s):  
Zainab Saberi
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Erythrosin B ◽  
Ctab Concentration ◽  
Dye Aggregation ◽  
Light Excitation ◽  
532 Nm

The nonlinear optical properties, absorbance and fluorescence spectra of Erythrosin B (ErB) aqueous solution in different CTAB concentration was studied. Z-scan technique under laser light excitation at 532 nm, was used for study reverse saturable absorption (RSA) of ErB. it was observed that the RSA of solution depend on CTAB concentration. A enhancing of absorbance and quenching of fluorescence is observed with increase of CTAB concentration in solution and the RSA can reduce the fluorescence intensity. It was proposed that the micelle can reduce the dye aggregation is solutions and it can affect on linear and nonlinear optical properties of ErB.

scholarly journals Wavelength-dependent nonlinear optical properties of 8-(4-methoxyphenyl)-6-oxo-3-p-tolyl-6H-pyrido[1,2-b][1,2,4]triazine-7,9-dicarbonitrile

2018 ◽  
Vol 96 (12) ◽  
pp. 1288-1294 ◽  
Author(s):  
M. Khanzadeh ◽  
M. Dehghanipour ◽  
A. Darehkordi ◽  
F. Rahmani
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Third Order ◽  
Incident Intensity ◽  
532 Nm ◽  
Order Susceptibility

In this study, 8-(4-methoxyphenyl)-6-oxo-3-p-tolyl-6H-pyrido[1,2-b][1,2,4]triazine-7,9-dicarbonitrile (A) was prepared and then the nonlinear optical properties of this compound, including nonlinear refractive index (n2) and nonlinear absorption coefficient (β) were measured using Z-scan technique by continuous wave laser diode at wavelengths of 405 and 532 nm. At wavelength of 532 nm, by increasing the incident intensity a switch over from saturable absorption (SA) to reverse saturable absorption (RSA) was observed. The results showed that the nonlinear optical properties of this compound depend on the wavelength. It was also observed that with decreasing incident intensity, the thermal nonlinear refractive coefficient increased accordingly, while its thermo-optic coefficient decreased. In addition, the third-order susceptibility of this compound in wavelength of 532 nm was obtained higher than 405 nm.

Nonlinear optical properties of lutetium bisphthalocyanine and its application for an optical switch

2004 ◽  
Vol 08 (07) ◽  
pp. 984-988 ◽  
Author(s):  
Lung-Chang Liu ◽  
Chia-Hon Tai ◽  
Andrew Teh Hu ◽  
Tai-Huei Wei
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Optical Switch ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
First Hyperpolarizability ◽  
Second Hyperpolarizability ◽  
Nlo Properties

The nonlinear optical (NLO) properties of lanthanide bisphthalocyanine (Lu(TBPc)Pc), including first hyperpolarizability, second hyperpolarizability and reverse saturable absorption (RSA), have been investigated. Furthermore, Lu(TBPc)Pc has also been applied for optical switch based on its RSA performance.

Nonlinear optical Properties of Pentaazadentate Expanded Porphyrins and Application in Optical Limiting

1997 ◽  
Vol 479 ◽  
Author(s):  
Duoyuan Wang ◽  
Wenfang Sun ◽  
Shiming Dong ◽  
Jinhai Si ◽  
Chunfei Li
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
High Fluences ◽  
Expanded Porphyrins ◽  
Optical Limiter ◽  
Incident Laser Intensity

AbstractNonlinear optical properties of asymmetric pentaazadentate expanded porphyrin metal complexes are investigated. The transmittance dependence of the target compounds on the incident laser intensity generates different nonlinear optical effects in the excited states. The reverse saturable absorption at 532 nm in the ns pulses and the saturable absorption for the pspulses at high fluences are observed in solutions. The nonlinear refractive indices n2 aremeasured by the Z-scan technique. The optical limiting based on the RSA and transverse refraction are demonstrated for ns and continuous laser. An optical limiter based on the RSA and self-refraction is performed, in which the limitating threshold and amplitude of output energy are reduced.

SIZE DEPENDENT SWITCHING FROM REVERSE SATURABLE TO SATURABLE ABSORPTION IN CARBOXYLATE-MODIFIED MICROSPHERES

2011 ◽  
Vol 20 (02) ◽  
pp. 137-143
Author(s):  
MANU VAISHAKH ◽  
S. MATHEW ◽  
V. P. N. NAMPOORI
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Response ◽  
Second Harmonic ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Third Order ◽  
Size Dependent ◽  
The Third ◽  
532 Nm

The third order nonlinear optical properties of two different sized carboxylate-modified microspheres are investigated at different pump powers. The nonlinear absorption (NLA) is measured at 532 nm using 10 Hz, 7 ns pulses from the second harmonic generated from a Q-switched Nd -YAG laser in an open aperture Z-scan setup. The nonlinear response is size-dependent, and switching from reverse saturable absorption (RSA) to saturable absorption (SA) is observed as the size increases.

Hyperbranched lutecium phthalocyanines grafted ethylenediamine@graphene oxide with enhanced nonlinear optical properties

2020 ◽  
Vol 24 (08) ◽  
pp. 1038-1046
Author(s):  
Zengduo Cui ◽  
Xin Wang ◽  
Jiale Ding ◽  
Yunhe Zhang ◽  
Zhenhua Jiang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Graphene Oxide ◽  
Organic Solvent ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Polymeric Matrix ◽  
Nonlinear Optical Properties ◽  
Photon Absorption ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption

To enhance the nonlinear optical properties of graphene oxide in organic solvent and polymeric matrix, lutecium phthalocyanines (LuPc) and hyperbranched lutecium phthalocyanines (HBLuPc) have been grafted on the surface of graphene oxide, respectively. After the surficial modification, the electron transfer process between phthalocyanines and graphene oxide has been also facilitated, resulting in significant fluorescence quenching. Given the combination of nonlinear scattering, two-photon absorption with reverse saturable absorption and the photo-induced electron or energy transfer from the electron donor (phthalocyanine moiety) to the acceptor (graphene oxide), stronger nonlinear optical properties can be realized based on graphene oxide hybrids compared with graphene oxide and phthalocyanines. Furthermore, graphene oxide hybrid modified by hyperbranched lutecium phthalocyanines exhibits the best optical limiting response and the highest nonlinear extinction coefficient at 532 nm in both organic solvent and polymeric matrix. Interestingly, we also find that it could exhibit better optical limiting properties than those possessed by pure phthalocyanine at 1064 nm.

scholarly journals Third-order nonlinear optical properties of colloidal Au nanorods systems: saturable and reverse-saturable absorption

2015 ◽  
Vol 24 (2) ◽  
pp. A154 ◽  
Author(s):  
E. V. García-Ramírez ◽  
S. Almaguer-Valenzuela ◽  
O. Sánchez-Dena ◽  
O. Baldovino-Pantaleón ◽  
J. A. Reyes-Esqueda
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Third Order ◽  
Au Nanorods ◽  
Colloidal Au

scholarly journals Nonlinear Optical Properties of CdSe and CdTe Core-Shell Quantum Dots and Their Applications

2021 ◽  
Vol 9 ◽  
Author(s):  
Um e Kalsoom ◽  
Rongxing Yi ◽  
Junle Qu ◽  
Liwei Liu
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Light Emitting Diode ◽  
Nonlinear Refraction ◽  
Nonlinear Optical Properties ◽  
Shell Shape ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Core Shell

The strong nonlinear optical behavior of low-dimensional materials, such as quantum dots and core-shell quantum dots, has been a topic of intense research in recent years. As quantum dots have tunable emission via changes in their sizes, they are potentially useful in photo-electronics, photovoltaic nonlinear optics, light-emitting diode fabrication, and laser protections. Variation among core and shell shape and size, along with the chemical composition of quantum dots, define their enhanced nonlinear optical properties. Some specific nonlinear optical properties, such as nonlinear refraction, optical limiting, saturable absorption, reverse saturable absorption of CdTe and CdSe quantum dots (QDs), as well as core-shell QDs and their applications, were assessed in this paper.

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