Fifth-order nonlinear optical response of Alq3 thin films

Saleh, Ahmad; Li, Weiwei; AlQahtani, Hadi; Neuhaus, Marcel; Alshehri, Ali; Bergues, Boris; Alharbi, Meshaal; Kling, Matthias F.; Azzeer, Abdallah M.; Wang, Zilong; Alharbi, Abdullah

doi:10.1016/j.rinp.2022.105513

Cited by 4 publications

(1 citation statement)

References 36 publications

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“…[10] Additionally, they would serve as useful tools for harmonic generation due to the high density of emitters. [15] While significant nonlinear properties have been demonstrated in OSCs in the perturbative regime, their high-order optical response in non-perturbative regime is less studied particularly in solid-state phase. Here, we experimentally investigated below-threshold low-order harmonic emission in OSC thin films prepared from two porphyrin molecules, tetraphenylporphyrin (TPP) and one of its metallo-derivatives, ZnTPP.…”

Section: Introductionmentioning

confidence: 99%

Resonance Effect in Brunel Harmonic Generation in Thin Film Organic Semiconductors

Saleh

Sharma

et al. 2023

Advanced Optical Materials

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Nonlinear optical properties of organic semiconductors (OSCs) have been extensively investigated in the perturbative regime, while strong light induced high‐order processes in solid‐state OSCs are less studied. Here, below‐threshold harmonic generation is examined, both experimentally and theoretically, in two solid‐state thin film OSCs, that is, tetraphenylporphyrin and zinc tetraphenylporphyrin. Results show that the π–π* excitations of the porphyrin ring system generate the harmonic emission. The contribution of the Brunel harmonic to the 5th harmonic emission is uncovered, where the resonant 5‐photon transition (S0 → S2 transition) is found to lead to an early onset of non‐perturbative behavior. A similar resonance effect is expected in Brunel harmonic generation in other organic materials.

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Section: Introductionmentioning

confidence: 99%

Resonance Effect in Brunel Harmonic Generation in Thin Film Organic Semiconductors

Saleh

Sharma

et al. 2023

Advanced Optical Materials

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Stabilizing solitons of the cubic–quintic nonlinear Schrödinger equation by frequency-dependent linear gain-loss and delayed Raman response

Peleg

Chakraborty

2023

Physica D: Nonlinear Phenomena

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Functionalized hBN Quantum Dots as Optical Limiters in the Ultraviolet Region

Sirohi,

Ray Chawdhury,

Narayanan

et al. 2024

ACS Appl. Nano Mater.

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Hexagonal boron nitride (hBN) quantum dots (QDs) have been synthesized using a top-down method. Pristine QDs exhibit wavelength-dependent emission spectra. The nonlinear optical (NLO) behavior of hBN QDs has been investigated for the first time using the self-diffraction geometry of the fourwave mixing technique and z-scan method. The optical properties are modified upon functionalization with suitable thiol (−SH) and aromatic amine (−NHR) ligands. It has been found that the spectroscopic and NLO responses are influenced by the transfer of charge carriers between the ligand and base hBN moiety. Functionalized QDs give rise to red-shifted emission and possess an enhanced NLO response. QDs show a promising optical limiting response, which makes them useful as a coating in protective eyewear for intense lasers.

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Fifth-order nonlinear optical response of Alq3 thin films

Cited by 4 publications

References 36 publications

Resonance Effect in Brunel Harmonic Generation in Thin Film Organic Semiconductors

Resonance Effect in Brunel Harmonic Generation in Thin Film Organic Semiconductors

Stabilizing solitons of the cubic–quintic nonlinear Schrödinger equation by frequency-dependent linear gain-loss and delayed Raman response

Functionalized hBN Quantum Dots as Optical Limiters in the Ultraviolet Region

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