Perfluorinated gallium phthalocyanine axially grafted black phosphorus nanosheets for optical limiting

2020 ◽  
Vol 8 (30) ◽  
pp. 10197-10203
Author(s):  
Zhiwei Liu ◽  
Bin Zhang ◽  
Ningning Dong ◽  
Jun Wang ◽  
Yu Chen
Keyword(s):  
Nonlinear Optical ◽  
Optical Limiting ◽  
Black Phosphorus ◽  
532 Nm

Fluorine-containing gallium phthalocyanine (F16PcGa) axially grafted black phosphorus (BP) nanosheets (F16PcGa–BP) were synthesized by reaction of F16PcGaCl with 4-hydroxylbenzenediazonium tetrafluoroborate-functionalized BP (4-HBT-BP). In contrast to BP and F16PcGaCl, F16PcGa–BP exhibits better nonlinear optical and optical limiting responses at 532 nm.

Nonlinear optical properties of colloidal carbon nanoparticles: nanodiamonds and carbon dots

RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40152-40160 ◽  
Author(s):  
Irene Papagiannouli ◽  
Athanasios B. Bourlinos ◽  
Aristides Bakandritsos ◽  
Stelios Couris
Keyword(s):  
Optical Properties ◽  
Carbon Dots ◽  
Carbon Nanoparticles ◽  
Nonlinear Optical ◽  
Laser Excitation ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Nlo Response ◽  
Colloidal Carbon ◽  
532 Nm

Nanodiamonds (NDs) and carbon-dots (CDs) suspensions exhibit significant NLO response under both ps and ns laser excitation. NDs exhibit important optical limiting action under nanosecond visible (532 nm) and infrared (1064 nm) laser excitation.

NONLINEAR-OPTICAL AND OPTICAL LIMITING PROPERTIES OF PHENOXY-PHTHALOCYANINES STUDIED USING THE Z-SCAN TECHNIQUE

2009 ◽  
Vol 18 (04) ◽  
pp. 583-589 ◽  
Author(s):  
YUNDONG ZHANG ◽  
LEI MA ◽  
CHAOBO YANG ◽  
PING YUAN
Keyword(s):  
Absorption Coefficient ◽  
Low Power ◽  
Pulse Laser ◽  
Nonlinear Absorption ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Nonlinear Absorption Coefficient ◽  
Potential Candidate ◽  
Single Beam ◽  
532 Nm

The nonlinear-optical and optical limiting properties of 2(3), 9(10), 16(17), 23(24) phenoxy-phthalocyanines have been investigated using a 10-ns-pulse laser at 532 nm. The nonlinear absorption coefficient (β) is measured by the single beam Z-scan technique. We have observed low power optical limiting, with low limiting thresholds, based on nonlinear absorption in the sample. These studies indicate that the phthalocyanine material is a potential candidate for low power optical limiting applications.

NONLINEAR OPTICAL TRANSMISSION OF SURFACE-MODIFIED NICKEL SULFIDE NANOPARTICLES: SATURATION OF ABSORPTION AND OPTICAL LIMITING

NANO ◽  
2008 ◽  
Vol 03 (03) ◽  
pp. 161-167 ◽  
Author(s):  
V. S. MUTHUKUMAR ◽  
J. K. KIRAN ◽  
J. REPPERT ◽  
R. SATYAJIT ◽  
VAMSI KRISHNA ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Nickel Sulfide ◽  
Optical Transmission ◽  
Average Diameter ◽  
Optical Limiting ◽  
Simultaneous Occurrence ◽  
Saturation Intensity ◽  
Transmission Studies ◽  
Surface Modified ◽  
532 Nm

Saturable absorbers and optical limiters have contrary optical transmission properties. We report observations of simultaneous occurrence of both these effects in a nickel sulfide nanoparticle (average diameter ~5 nm) solution and a simultaneous quantitative measurement of both. Intensity-dependent nonlinear transmission studies carried out using a 7 ns Nd : YAG laser at 532 nm by the Z-scan method, revealed efficient optical limiting in nickel sulfide nanoparticle suspensions. Induced nonlinear optical scattering was identified to be the mechanism of optical limiting, and absorption at 532 nm was found to saturate. A modification of the conventional Z-scan implementation led to the retrieval of the saturation intensity, which is otherwise overshadowed by very strong nonlinear scattering.

Photophysical and nonlinear optical study of benzothiazole substituted phthalocyanines in solution and thin films

2017 ◽  
Vol 21 (04-06) ◽  
pp. 263-272 ◽  
Author(s):  
Njemuwa Nwaji ◽  
Owolabi M. Bankole ◽  
Jonathan Britton ◽  
Tebello Nyokong
Keyword(s):  
Thin Films ◽  
Nonlinear Optical ◽  
Laser Excitation ◽  
Optical Limiting ◽  
Optical Study ◽  
Optical Performance ◽  
Third Order ◽  
Limiting Behavior ◽  
532 Nm ◽  
Order Susceptibility

In this study, the photophysical, nonlinear absorption and nonlinear optical limiting properties of zinc and gallium phthalocyanine complexes: tetrakis[(benzo[d]thiazol-2-yl phenoxy)phthalocyaninato]zinc(II) (3), tetrakis[(benzo[d]thiazol-2-yl phenoxy)phthalocyaninato] gallium(III) chloride (4), tetrakis[(benzo[d]thiazol-2-ylthio)phthalocyaninato] zinc(II) (5), tetrakis[(benzo[d]thiazol-2-ylthio)phthalocyaninato] gallium(III) chloride (6), were investigated both in solution and when embedded in polystyrene thin films using 532 nm laser excitation at 10 ns pulses. It was also observed that complexes that have higher triplet state absorption also possessed enhanced nonlinear and optical limiting behavior. Superior optical performance was observed when the complexes were embedded in thin films compared to when they are in solution. Complex 6 in thin films gave the highest imaginary third-order susceptibility (I[Formula: see text][X[Formula: see text]]) and hyperpolarizability ([Formula: see text] at 4.61 × 10[Formula: see text] esu and 3.44 × 10[Formula: see text] esu, respectively, with a low I[Formula: see text] value of 0.06 J.cm[Formula: see text]

Enhanced nonlinear optical properties of graphene oxide–silver nanocomposites measured by Z-scan technique

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10319-10325 ◽  
Author(s):  
S. Biswas ◽  
A. K. Kole ◽  
C. S. Tiwary ◽  
P. Kumbhakar
Keyword(s):  
Optical Properties ◽  
Graphene Oxide ◽  
Optical Property ◽  
Nonlinear Optical ◽  
Nonlinear Optical Property ◽  
Optical Limiting ◽  
Visible Wavelength ◽  
Silver Nanocomposites ◽  
Optical Limiting Effect ◽  
532 Nm

Enhanced (by ∼2.8) nonlinear optical property of GO–Ag nanocomposite has been reported by Z-scan technique at a visible wavelength of 532 nm. The synthesized GO–Ag nanocomposite is also displaying significant optical limiting effect.

Photophysical and optical limiting properties at 532 nm of BODIPY dyes with p-benzyloxystyryl groups at the 3,5-positions

2018 ◽  
Vol 22 (05) ◽  
pp. 413-422 ◽  
Author(s):  
Bokolombe P. Ngoy ◽  
Zweli Hlatshwayo ◽  
Njemuwa Nwaji ◽  
Gertrude Fomo ◽  
John Mack ◽  
...  
Keyword(s):  
Optical Properties ◽  
Excited State ◽  
Nonlinear Optical ◽  
Heavy Atom ◽  
Excited State Absorption ◽  
Optical Limiting ◽  
Synthesis And Characterization ◽  
532 Nm ◽  
Atom Effect

The synthesis and characterization of a series of 3,5-di-[Formula: see text]-benzyloxystyrylBODIPY dyes with different substituents at the meso-aryl position is reported. The photophysical and nonlinear optical properties are described. BODIPYs of this type are found to be suitable for optical limiting at 532 nm on the nanosecond timescale. An enhancement of the population of the T[Formula: see text] state through the incorporation of bromine atoms at the 2,6-positions does not result in an enhancement of the optical limiting properties on a nanosecond timescale. This suggests that, in contrast with phthalocyanines, access to excited state absorption (ESA) from the T[Formula: see text] state through the introduction of a heavy atom effect does not provide a significantly improved reverse saturable absorbance response compared to ESA from the S[Formula: see text] state.

scholarly journals Synthesis, Fluorescence and Nonlinear Optical Properties of Phthalocyanine Derivatives in the Continuous-wave and Pulsed Excitation Regimes-=SUP=-*-=/SUP=-

2021 ◽  
Vol 129 (5) ◽  
pp. 626
Author(s):  
Hacene Manaa ◽  
Devrim Attila ◽  
Ayse Gul Gurek ◽  
Sughra Mohamed ◽  
Fadheela A. Alawainati ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Pulsed Laser ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Visible Range ◽  
Third Order ◽  
Nonlinear Properties ◽  
532 Nm

In this work, the photo-physical properties of seven different phthalocyanine derivatives are studied, with a focus on their transparency spectral range. Two compounds among them are recently synthesised. The investigations include synthesis, photoluminescence, absorptive and refractive nonlinear properties, and optical limiting performances. The compounds are found to be emitting interesting broad fluorescence bands in the visible range. The nonlinear optical properties are investigated with the help of Z-scan technique, with both a continuous laser at 488, 514.5 and 632.8 nm, and with a pulsed laser at 532 nm. The sign and the magnitude of the nonlinear refractive index, third-order susceptibility, and nonlinear absorption coefficient have been evaluated in the seven compounds. The optical limiting performance of each compound was also evaluated in the continuous and pulsed laser excitation regimes. Keywords:

Nonlinear Optical Studies on a New Poly{2-(biphenyl-4-yl)-5-[3,4-didecyloxy-5-(1,3,4-oxadiazol-2-yl)thiophen-2-yl]-1,3,4-oxadiazole}

2010 ◽  
Vol 657 ◽  
pp. 56-61 ◽  
Author(s):  
Pramod Kumar Hegde ◽  
Airody Vasudeva Adhikari ◽  
M.G. Manjunatha ◽  
C.S. Suchand Sandeep ◽  
Philip Reji
Keyword(s):  
Nonlinear Optical ◽  
Optical Limiting ◽  
Photon Absorption ◽  
Excitation Wavelength ◽  
Optical Studies ◽  
Limiting Behavior ◽  
Single Beam ◽  
Transmission Measurements ◽  
Best Fit ◽  
532 Nm

Measurements of nonlinear optical properties of a newly synthesized thiophene based polymer are reported. The nonlinear transmission measurements were performed on the polymer dissolved in N,N-dimethylformamide by employing the single beam Z-scan technique using a Q-switched laser output at 532-nm. The polymer shows strong optical limiting behavior, where the transmittance decreases when the pump fluence is increased. It was found that an effective three-photon absorption (3PA) model at the excitation wavelength gives the best fit to the obtained experimental data. The value of the 3PA coefficient has been numerically calculated. This study clearly reveals the potential of new polymeric material has, for optical limiting applications.

Donor–acceptor type black phosphorus nanosheets covalently functionalized with a conjugated polymer for laser protection

2019 ◽  
Vol 10 (44) ◽  
pp. 6003-6009 ◽  
Author(s):  
Kexin Wang ◽  
Ningning Dong ◽  
Zhiwei Liu ◽  
Makai Shi ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Black Phosphorus ◽  
Donor Acceptor

Donor–acceptor type black phosphorus nanosheets covalently functionalized with a conjugated polymer (PDBT-BP) exhibits excellent nonlinear optical and optical limiting performance.

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