ZnSe-BODIPY hybrid system for nonlinear optical switching applications

Divyasree, M.C.; Shiju, E; Prasannan, Dijo; Chandrasekharan, K.

doi:10.1016/j.matchemphys.2019.04.045

Cited by 4 publications

(6 citation statements)

References 43 publications

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“…CBO traces of the samples at 0.83 GW/cm 2 are shown in Figure 12a, where symbols are experimental data and solid lines are theoretical fit of the experimental data based on the following transmittance equation. [ 53 ]

T ((), z) = 1 + \frac{4 normalΔ ϕ_{0} ((), z / z_{0})}{([], 1 + {(z / z_{0})}^{2}) ([], 9 + {(z / z_{0})}^{2})},

where T ( z ) is the normalized transmittance due to refractive effect lone and ΔΦ 0 = kn 2 I 0 L eff is the on‐axis non‐linear phase shift at the focus. The value of n 2 can be estimated using the following equation:

n_{2} ((), esu) = \frac{{cn}_{0} italicλΔ ϕ_{0}}{80 π^{2} I_{0} L_{eff}},

where c is the velocity of light in vacuum and n 0 is the low‐intensity refractive index of the sample.…”

Section: Resultsmentioning

confidence: 99%

“…As the beam propagates through the medium, it acquires an additional phase shift because of induced lensing effect. [ 53,54 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Non-linear Refraction Studiesmentioning

confidence: 99%

“…As the beam propagates through the medium, it acquires an additional phase shift because of induced lensing effect. [53,54] Figure 12b shows the CBO Z scan signatures hybrid system, and its constituents. As discussed above here also, all the compounds exhibit negative non-linearity.…”

Section: Non-linear Refraction Studiesmentioning

confidence: 99%

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An insight into phenomenal optical non‐linearities arising from synergistic relationship between selected BODIPYs and noble metal nanoparticles

Edappadikkunnummal

Prasannan

Francis

et al. 2020

Applied Organom Chemis

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Materials with large and quick non-linear optical response, excellent photo thermal stability, cost effectiveness and off resonant non-linear absorption (NLA) are essential requirements for a good optical limiting (OL). Among them, organic systems and π-conjugated polymers are getting special interest because of their flexibility in structural modification that leads to the tuning of optical and electronic properties that are suitable for working under large bandwidth. Here, we report a drastic enhancement of non-linear optical activity and exceptional OL action of two organic-inorganic hybrid system based on BODIPY and Au and Ag nanoparticles (NPs). The organic system taken was certain set of BODIPYs with different substitution at the para and meta positions. All the compounds were found to be exhibiting good reverse saturable absorption (RSA) behaviour and negative non-linear refraction property. An attempt was made to improve the non-linear optical (NLO) property of the BODIPY by forming nanohybrids with Au and Ag NPs, and the best NLO active candidate among the studied system was chosen for it. A significant enhancement in NLO property was observed on hybrid system formation. The optical limiting (OL) threshold of the hybrid (1 J/cm 2) was reduced almost 1/5 times than that of the parent compound (5.2 J/cm 2), and this value is comparable with the benchmark OL materials like C 60. The mechanism behind the NLA is found to be the combination of excited state absorption (ESA) and twophoton absorption (TPA). The enhanced NLA and OL action of C Ag/Au nanohybrids are attributed to the synergetic effect among the two parent components as well as the local field effects of NPs. Enhancement in non-linear optical property is found to be stronger in hybrid system with Au NPs and is due to the resonant charge transfer and intense local field effect on exciting with 532-nm pulse compared with that of Ag NPs. Both the parent compounds and the nanohybrids exhibit negative non-linearity, and the non-linear

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T ((), z) = 1 + \frac{4 normalΔ ϕ_{0} ((), z / z_{0})}{([], 1 + {(z / z_{0})}^{2}) ([], 9 + {(z / z_{0})}^{2})},

n_{2} ((), esu) = \frac{{cn}_{0} italicλΔ ϕ_{0}}{80 π^{2} I_{0} L_{eff}},

where c is the velocity of light in vacuum and n 0 is the low‐intensity refractive index of the sample.…”

Section: Resultsmentioning

confidence: 99%

“…As the beam propagates through the medium, it acquires an additional phase shift because of induced lensing effect. [ 53,54 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Non-linear Refraction Studiesmentioning

confidence: 99%

Section: Non-linear Refraction Studiesmentioning

confidence: 99%

See 2 more Smart Citations

An insight into phenomenal optical non‐linearities arising from synergistic relationship between selected BODIPYs and noble metal nanoparticles

Edappadikkunnummal

Prasannan

Francis

et al. 2020

Applied Organom Chemis

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show abstract

“…Even though these molecules show excellent photophysical activities, the NLO response of these systems was less explored. 26 The nanosecond NLO studies of the BODIPY derivative dissolved in diacetone alcohol were carried out using the z-scan technique with 532 nm excitation wavelength, and the detailed explanation can be found in the literature. 21 The following propagation equation may be used to represent the laser instantaneous intensity (I) along the zaxis of the sample length 27 dI dz I I 1…”

Section: Linear and Nonlinear Optical Characterization Of The Bodipy ...mentioning

confidence: 99%

Coupling of the Tamm Plasmon to the BODIPY Fluorophore in Photonic Crystals for Nonlinear Optical Applications

et al. 2023

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Light confinement structures offer tantalizing applications in a wide variety of areas where light–matter interactions play a crucial role. Considering optical nonlinearity, light localization in nanoscale mode volumes may trigger nonlinear optical activity even at relatively low input optical powers. Here, we demonstrate the excitation of the Tamm plasmon mode of a metal–polymer photonic crystal hybrid structure, resonantly invoking absorptive nonlinear behavior of organic BODIPY dye incorporated in the spacer layer. Third-order nonlinear optical measurements are carried out using the z-scan technique with a Q-switched Nd:YAG laser delivering 7 ns pulses at 532 nm. While the bare sample exhibits negligible optical nonlinearity, the sample in the Tamm plasmon structure showed a large nonlinear absorption coefficient of 1.2 × 106 cm/GW at 0.27 GW/cm2 peak excitation intensity. Our results demonstrate a simple and efficient method to create a nonlinear nanophotonic platform valuable for applications in all-optical information processing.

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An insight into the photophysical and nonlinear optical properties of novel 1,3,4-oxadizole based donor-acceptor systems

Remya

Shiju

Aswathy

et al. 2022

Journal of Molecular Liquids

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ZnSe-BODIPY hybrid system for nonlinear optical switching applications

Cited by 4 publications

References 43 publications

An insight into phenomenal optical non‐linearities arising from synergistic relationship between selected BODIPYs and noble metal nanoparticles

An insight into phenomenal optical non‐linearities arising from synergistic relationship between selected BODIPYs and noble metal nanoparticles

Coupling of the Tamm Plasmon to the BODIPY Fluorophore in Photonic Crystals for Nonlinear Optical Applications

An insight into the photophysical and nonlinear optical properties of novel 1,3,4-oxadizole based donor-acceptor systems

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