Measurements of Nonlinear Optical Properties of PVDF/ZnO Using Z-Scan Technique

Shanshool, Haider Mohammed; Yahaya, Muhammad; Yunus, Wan Mahmood Mat; Abdullah, Ibtisam Yahya

doi:10.1007/s13538-015-0345-8

Cited by 26 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The nonlinear refraction through the heat effect is neglected in this experiment since the pulse duration is very short (∼150 fs) compared to the rise time of thermal origin . From our Z-scan data, it was established that Δ Z p–v ∼ 1.7 × Z 0 , confirming the major contribution of electronic nonlinearity . Due to the ease of generating free carriers in semiconductors, a large free carrier nonlinearity is possible.…”

Section: Resultsmentioning

confidence: 69%

“…79 From our Z-scan data, it was established that ΔZ p−v ∼ 1.7 × Z 0 , confirming the major contribution of electronic nonlinearity. 80 Due to the ease of generating free carriers in semiconductors, a large free carrier nonlinearity is possible. For longer excitation pulses, such as in the nanosecond regime, free carriers are the primary contributors to the observed optical nonlinearity, and they can mask the faster responses from the bound electronic nonlinearity.…”

Section: Xps Analysismentioning

confidence: 99%

See 1 more Smart Citation

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO₂ Nanoparticles

et al. 2017

View full text Add to dashboard Cite

Third-order nonlinear optical (NLO) properties of undoped and C–N–S doped TiO2 nanoparticles (NPs) were investigated using the Z-scan technique in the nanosecond (ns) and femtosecond (fs) regimes. Undoped TiO2 NPs exhibited reverse saturable absorption (RSA) behavior with both ns and fs laser pulse excitation, whereas C–N–S-doped TiO2 NPs demonstrated switch over from RSA to saturable absorption (RSA → SA) behavior with fs excitation. Our detailed NLO studies have clearly demonstrated the tunable nonlinear absorption behavior of C–N–S-doped TiO2 NPs. Such versatile tunability is important for various practical applications. The interesting nonlinear absorption (NLA) properties of these NPs are attributed to the interplay between ground and excited state absorption of the free carriers. The results obtained with ns laser excitation demonstrated that the nonlinear absorption coefficient (β) and nonlinear refractive index (n 2) for these materials varied with input irradiance, thus indicating the possibility of higher order nonlinearity (free–carrier effect) occurrence rather than third-order nonlinearity alone. C–N–S-doped TiO2 nanoparticles exhibited large magnitude for β and n 2 with values of 2.1 × 10–10 m/W and 15.4 × 10–17 m2/W, respectively, with ns excitation. Further, the samples were tested for nonlinearity with continuous wave (cw) excitation as heat-induced refractive index changes were observed for the samples with cw laser excitation at 532 nm. The room temperature ferromagnetism (RTFM) was observed in both undoped and C–N–S doped TiO2 NPs. Undoped rutile TiO2 exhibited ∼6.9-fold enhancement in RTFM as compared to the anatase phase of C–N–S-doped TiO2 NPs.

show abstract

Section: Resultsmentioning

confidence: 69%

Section: Xps Analysismentioning

confidence: 99%

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO₂ Nanoparticles

et al. 2017

View full text Add to dashboard Cite

show abstract

“…It was shown that at peak laser intensity 1 GW/cm 2 the PVDF-based composites demonstrated self-focusing/defocusing effects with efficiency |Re ( χ (3) )| ≤ 2.2 × 10 −8 esu [ 48 ]. For the similar ZnO dopant type [ 49 ] the efficiency of the NLO response reduces about three times at higher excitation intensity with the decrease of dopant fraction. We have also observed a saturation of the self-focusing effect manifestation accompanied with 1-2 orders of magnitude of Re( χ (3) ) drop in the studied films.…”

Section: Resultsmentioning

confidence: 99%

Application of P(VDF-TrFE) Glass Coating for Robust Harmonic Nanoparticles Characterization

Ilchenko¹,

Multian

Lymarenko³

et al. 2021

Micromachines

View full text Add to dashboard Cite

Polyvinylidene fluoride and its copolymers are a well-known family of low-cost ferroelectric materials widely used for the fabrication of devices for a wide range of applications. A biocompatibility, high optical quality, chemical and mechanical durability of poly(vinylidene fluoride–trifluoroethylene), (P(VDF–TrFE)), makes it particularly attractive for designing of effective coating layers for different diagnostic techniques. In the present work, the nonlinear optical characterization of P(VDF-TrFE)-coating films deposited onto a glass substrate was done. Advantages of the coating application for cells/substrates in the field of multiphoton imaging the efficiency of such coating layer for long-duration characterization of so-called harmonic nanoparticles (HNPs) were shown. The influence of glass surface protection by P(VDF-TrFE) film from an effect of HNPs sticking to the walls of the flow-cell was analyzed for effective studying of the optical harmonics generation efficiency of HNPs making the analysis more robust.

show abstract

“…Electroactive polymers (EAPs) are gaining an immense interest as smart materials [1,2]. There are many EAPs, namely, Nylon-11, polylactide and aniline pentamer copolymer, poly (lactic-co-glycolic acid) (PLGA), and poly (vinylidene fluoride) (PVDF) and its copolymers with trifluoroethylene (TrFE) [3][4][5][6]. However, PVDF and PDVF-TrFE exhibit the best electro active properties, such as piezo-, pyro-and ferroelectricity, and optoelectronic [7,8].…”

Section: Introductionmentioning

confidence: 99%

Linear Optical Constants of Polyvinylidene Fluoride/Praseodymium Oxide Nanocomposite Films in the Ferroelectric Phase

Joseph¹

2021

Madridge J Nanotechnol Nanosci

View full text Add to dashboard Cite

In the present investigation, the pristine and Praseodymium oxide (Pr 2 O 3 ) nanoparticle embedded polyvinylidene fluoride (PVDF) thick films were fabricated via solution casting/intercalation technique. PVDF/ Pr 2 O 3 nano composite film has been fabricated aiming its use in ferroelectric memory devices and in the development of biomedical sensors. The Pr 2 O 3 nano particles were synthesized by the hydrothermal technique, being a versatile and easy method for obtaining size controlled nanoparticles. The Fourier Transform Infrared Spectroscopy (FTIR) has been recorded in the range 400 to 4000 cm-1, and functional groups were identified in the nanocomposite films. Infrared vibrational spectroscopy (FTIR + Raman) curves revealed the presence of ferroelectric β-phase in the annealed nanocomposite films intrinsically. All-important optical constants have been determined for the first time via UV-VIS transmission spectroscopy for the nanocomposite films in the ferroelectric phase.

show abstract

Measurements of Nonlinear Optical Properties of PVDF/ZnO Using Z-Scan Technique

Cited by 26 publications

References 28 publications

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO₂ Nanoparticles

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO₂ Nanoparticles

Application of P(VDF-TrFE) Glass Coating for Robust Harmonic Nanoparticles Characterization

Linear Optical Constants of Polyvinylidene Fluoride/Praseodymium Oxide Nanocomposite Films in the Ferroelectric Phase

Contact Info

Product

Resources

About

Measurements of Nonlinear Optical Properties of PVDF/ZnO Using Z-Scan Technique

Cited by 26 publications

References 28 publications

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO2 Nanoparticles

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO2 Nanoparticles

Application of P(VDF-TrFE) Glass Coating for Robust Harmonic Nanoparticles Characterization

Linear Optical Constants of Polyvinylidene Fluoride/Praseodymium Oxide Nanocomposite Films in the Ferroelectric Phase

Contact Info

Product

Resources

About

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO₂ Nanoparticles

Tunable Nanosecond and Femtosecond Nonlinear Optical Properties of C–N–S-Doped TiO₂ Nanoparticles