Study of thermal lens technique and third-order nonlinear susceptibility of PMMA base containing 5′, 5′′-dibromo-o-cresolsulfophthalein

Badran, Hussain A.; Al-Fregi, Adil A.; Alfahed, R. K. Fakher; Al-Asadi, Ahmed S.

doi:10.1007/s10854-017-7661-4

Cited by 23 publications

(6 citation statements)

References 34 publications

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“…This non-uniformity acts as an optical lens and varies the divergence of a probe beam coaxially propagating in the medium. Depending on the sign of the material's thermo-optic coefficient, the TL effect can behave as a converging or diverging lens [66].…”

Section: Non-linear Transient Scatteringmentioning

confidence: 99%

Background signals in stimulated Raman scattering microscopy and current solutions to avoid them

Genchi

Laptenok

Liberale

2023

Advances in Physics: X

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Stimulated Raman scattering (SRS) microscopy has gained popularity in recent years due to its linearity to molecule concentration and laser intensity, and to the lack of the nonresonant background that affects its analogous technique, coherent anti-Stokes Raman scattering. However, SRS is not a background-free technique. In fact, there are other optical processes -nonlinear transient scattering and nonlinear transient absorption -that can be detrimental to the contrast and sensitivity of SRS microscopy. In this review, we provide a description of these competing optical processes and present an up-to-date description of current solutions to minimize their effect on SRS measurements.

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Section: Non-linear Transient Scatteringmentioning

confidence: 99%

Background signals in stimulated Raman scattering microscopy and current solutions to avoid them

Genchi

Laptenok

Liberale

2023

Advances in Physics: X

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“…The switching times were of a few microseconds. The relaxation from the triplet states to the ground state is forbidden, that slower the switching time of the molecules [42][43][44].…”

Section: All-optical Switchingmentioning

confidence: 99%

Photoluminescence characterizations and nonlinear optical of PM-355 nuclear track detector film by alpha-particles and laser irradiation

Alfahed¹,

Imran²,

Majeed³

et al. 2020

Phys. Scr.

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The imaging processing technique was used for studying a laser beam nature that transmitted through films of PM-355. The thermal nonlinearity of PM-355 films was studied using a 635 nm cw diode laser at 15 mW as the source of excitation. Third order nonlinear optical properties of PM-355 films irradiated with α-particles at different times and pristine sample has been studied using Z-scan technique. The samples showed a negative and large nonlinear refractive index and reverse saturable absorption (RSA) with high values of the nonlinear absorption coefficient. The fluorescence spectra of PM-355 films were investigated at room temperature and wavelength range of 250–500 nm for a pristine film and in different times of exposure to α-particles. The broad peaks were between 350, 420 and 465 nm. All-optical switching property of PM-355 samples irradiated with α-particles at 20 min was also studied using the standard pump-probe technique.

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“…Materials with high optical nonlinearities have attracted substantial amount of curiosity and have established themselves as the suitable building bulk for several photonic applications related to optical signal processing, optical limiting, optical switching, etc [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The search for new materials possesses high nonlinear optical properties have continued until today for the sake of finding appropriate materials that included these properties, such as semiconductors, inorganic and organic materials.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the linear, nonlinear and optical limiting properties of epoxy resin decorated by zinc oxide nanoparticles

et al. 2020

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Epoxy resin decorated by zinc oxide (ZnO) nanoparticles film was successfully prepared onto a glass substrate. Field-emission scanning electron microscopy was used to examine the surface morphology of the prepared film. It is clearly observed that these nanoparticles are adhered onto the surface of the epoxy resin and cover its entire area. The UV–vis measurements of the as-prepared ZnO/epoxy resin microstructures displayed the outstanding enhancement in the photocatalytic properties. The optical band gap of the obtained film shows a significant increase up to 3.7 eV due to the non-stoichiometric distribution of zinc and oxygen atoms in the obtained structure. The nonlinear optical properties of the film were investigated using the Z-scan technique. Large and negative nonlinear refractive index of the sample is determined. The optical limiting property of the film is reported, and the optical limiting mechanism is originated from the thermal effect and the nonlinear scattering. The obtained materials along with the high nonlinearities demonstrates the possibly of incorporating this material in many functions related to photonic applications.

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Study of thermal lens technique and third-order nonlinear susceptibility of PMMA base containing 5′, 5′′-dibromo-o-cresolsulfophthalein

Cited by 23 publications

References 34 publications

Background signals in stimulated Raman scattering microscopy and current solutions to avoid them

Background signals in stimulated Raman scattering microscopy and current solutions to avoid them

Photoluminescence characterizations and nonlinear optical of PM-355 nuclear track detector film by alpha-particles and laser irradiation

Enhancement of the linear, nonlinear and optical limiting properties of epoxy resin decorated by zinc oxide nanoparticles

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