Superior optical nonlinearity of an exceptional fluorescent stilbene dye

He, Tiancheng; Sreejith, Sivaramapanicker; Gao, Yang; Grimsdale, Andrew C.; Zhao, Yanli; Lin, Xiaodong; Sun, Handong

doi:10.1063/1.4915311

Cited by 15 publications

(16 citation statements)

References 29 publications

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“…The observation of harmonic generation can be regarded as a supporting evidence for MPA upconversion lasing. In fact, the harmonic generation from materials was ignored for a long time, and only a small amount of reports about the observation of coexistence between MPA fluorescence and two‐harmonic generation can be found up to date . In comparison to the organic medium solution and other disordered nanoparticle systems, the microwire/nanowire with non‐centrosymmetry structure will possess an excellent MPA ability.…”

Section: Resultsmentioning

confidence: 99%

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Low‐Threshold Whispering‐Gallery Mode Upconversion Lasing via Simultaneous Six‐Photon Absorption

Chen

Zhu

et al. 2018

Advanced Optical Materials

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high-harmonic generation (HHG), the multiphoton absorption (MPA) upconversion lasing is an alternative approach to produce short wavelength laser sources. The MPA upconversion lasing is a typical higher-order nonlinear optical process in which the short wavelength lasing was realized through the stimulated emission between the up and low energy level; here, the population inversion was constructed by means of simultaneous MPA. [2] Comparing with traditional HHG techniques, the MPA upconversion lasing does not require stringent phase-matching requirements. [3,4] Hence, the tuning range of pumping light for MPA upconversion laser can be extended significantly. In addition, the MPA upconversion laser has a deep penetration depth compared with the conversion laser, which expands a great application value in biological imaging, [5] laser tomography, [6] photodynamic therapy, [7] and others. Ever since He et al. firstly demonstrated three-photon excited stimulated emission in organic dyes solution, [2] two-or three-photon absorption upconversion lasing has also been revealed in other organic dyes, [8,9] semiconductor quantum dots, [10] and perovskite nanocrystals. [11] However, the intrinsic liquid properties of organic dyes and the poor antiradiation ability of perovskite nanocrystals will be their bottleneck to practical applications drastically. Semiconductor crystal may be more suitable for such application due to its large damage resistance threshold and high optical gain. [12][13][14][15] Although two-and three-photon absorption upconversion lasing have been achieved in semiconductors such as ZnO, [16,17] only a few report on the above four-photon excited lasing to the best of our knowledge. [18] In order to realize higher-order MPA upconversion lasing, special attention has been paid to synthesize materials with large MPA cross-sections and large optical gain. [19] On the other hand, the MPA upconversion lasing is a typical high-order nonlinear photon-matter interaction process, which dramatically depends on the optical field intensity. Recently, the high-order nonlinear optical effect has been observed in high Q-factor microcavity. [20] It is anticipated that the manipulation of optical field through the construction of microcavity for the exciting light may be an alternative technique to achieve high-order MPA upconversion lasing. However, the short spatial gain length l g deduced from femtosecond (fs) laser pulse duration τ (l g = c·τ) will set a requirement forThe upconversion lasing through simultaneous multiphoton absorption (MPA) is a high-order nonlinear optical process, which enables many critical applications in the fluorescence imaging probe, laser tomography, and photodynamic therapy. Herein, the upconversion lasing from microwires via simultaneous six-photon absorption at room temperature is first realized. Moreover, the lasing peak and third-harmonic generation peak of pumping light are observed concurrently, while the temperature-dependent spectrum elucidates the essential distinction between each...

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Section: Resultsmentioning

confidence: 99%

“…Growth and Characterization of the MWs : The gain media ZnO MWs were grown using the VLS growth method . The growth method has been illustrated in detail elsewhere . The morphology of bare MW was characterized by field emission scanning electron microscopy (FESEM, Hitachi S4800).…”

Section: Methodsmentioning

confidence: 99%

Low‐Threshold Whispering‐Gallery Mode Upconversion Lasing via Simultaneous Six‐Photon Absorption

Chen

Zhu

et al. 2018

Advanced Optical Materials

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“…There have been many reports of 3PA processes resulting from 2PA followed by excited‐state absorption (ESA), but far fewer describing instantaneous 3PA employing low repetition‐rate femtosecond pulses . Of these, very few have undertaken nonlinear‐absorption spectral‐dependence studies, although such studies are needed to identify the specific wavelengths in the telecommunications band at which the instantaneous 3PA coefficient is maximized ,–,,,. From the limited studies thus far, fluorene‐based monomers and oligomers have been shown to be particularly efficient three‐photon absorbers,,, exhibiting three‐photon‐excited fluorescence (3PEF)‐derived 3PA cross‐sections as high as 4.6×10 −76 cm 6 s 2 at 1330 nm .…”

Section: Figurementioning

confidence: 99%

Stellar Multi‐Photon Absorption Materials: Beyond the Telecommunication Wavelength Band

Schwich

Barlow

Cifuentes

et al. 2017

Chemistry A European J

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Very large molecular two- and three-photon absorption cross-sections are achieved by appending ligated bis(diphosphine)ruthenium units to oligo(p-phenyleneethynylene) (OPE)-based "stars" with arms up to 7 phenyleneethynylene (PE) units in length. Extremely large three- and four-photon absorption cross-sections, through the telecommunications wavelengths range and beyond, are obtained for these complexes upon optimizing OPE length and the ruthenium-coordinated peripheral ligand. Multi-photon absorption (MPA) cross-sections are optimized with stars possessing arms 2 PE units in length. Peripheral ligand variation modifies MPA merit and, in particular, 4-nitrophenylethynyl ligand incorporation enhances maximal MPA values and "switches on" four-photon absorption (4PA) in these low molecular-weight complexes. The 4-nitrophenylethynyl-ligated 2PE-armed star possesses a maximal four-photon absorption cross-section of 1.8×10 cm s at 1750 nm, and significant MPA activity extending beyond 2000 nm.

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“…The MPA process refers to the material simultaneously absorbing multiple long-wavelength excited photons to generate one short-wavelength emitted photon 3 . This process usually occurs in several kind of materials such as dye molecules, AIE nanoparticles, quantum dots, etc [4][5][6] . The occurrence of MPA emission requires extremely high excitation light energy, so the femtosecond pulse laser is usually used as the excitation light source, which is quite expensive.…”

Section: Introductionmentioning

confidence: 99%

Bright Near-infrared Anti-Stokes Fluorescence of ICG under Low Power CW Laser Excitation and its Applications in Bioimaging

Zhou

kang

et al. 2020

Preprint

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AbstractAnti-Stokes fluorescence was observed in ICG, a molecule approved by the FDA for clinical use. The wavelengths of its fluorescence are mainly located in the near-infrared band of 800 nm~900 nm, with a high quantum yield up to 8%. In order to know its generation mechanism, based on multi-photon absorption (MPA) theory, thermally activated delayed fluorescence (TADF) theory and hot band absorption theory, its power dependence, temperature dependence of absorption spectra and fluorescence spectra, and fluorescence lifetime were measured. Its generation mechanism was finally determined to be hot band absorption process. Since ICG showed bright anti-Stokes fluorescence in near-infrared region, which offers substantially longer penetration depth in biological tissues than visible light, excellent photostability and biosafety, we applied it to in vivo imaging and compared it with upconversion nanoparticles (UCNPs). The result is that ICG exhibited much stronger fluorescence than UCNPs, providing more anatomical information of samples. This contributes to a better choice for anti-Stokes fluorescence bioimaging.

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Superior optical nonlinearity of an exceptional fluorescent stilbene dye

Cited by 15 publications

References 29 publications

Low‐Threshold Whispering‐Gallery Mode Upconversion Lasing via Simultaneous Six‐Photon Absorption

Low‐Threshold Whispering‐Gallery Mode Upconversion Lasing via Simultaneous Six‐Photon Absorption

Stellar Multi‐Photon Absorption Materials: Beyond the Telecommunication Wavelength Band

Bright Near-infrared Anti-Stokes Fluorescence of ICG under Low Power CW Laser Excitation and its Applications in Bioimaging

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