Efficient, two-photon pumped green upconverted cavity lasing in a new dye

Bhawalkar, Jayant D.; He, Guang S.; Park, Chi-Kyun; Zhao, Chan F.; Ruland, Gary; Prasad, Paras N.

doi:10.1016/0030-4018(95)00540-4

Cited by 144 publications

(31 citation statements)

References 22 publications

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“…Since its theoretical prediction by Göppert-Mayer in 1931 [1], the nonlinear optical (NLO) process of two-photon absorption (TPA) has received considerable attention, owing to numerous relevant applications in several fields [2], such as optical limiting [3][4][5], three-dimensional microfabrication [7][8][9][10][11][12][13][14][15], up-converted lasering [16][17][18], photodynamic therapy [19][20][21][22], data storage [23][24][25][26][27][28], and biomedical imaging [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

“…Much theoretical as well experimental studies have been focussed on the design of efficient TPA molecules [40][41][42][43][44][45][46][47][48][49][50][51]. As for quadratic NLO, the best trade-off between transparency and TPA response is obtained by tuning the conjugation of the charge transfer (CT) system and the strength of the substituents A and D of the molecule; this leads to the shift of excited states.…”

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confidence: 99%

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Excitonically Coupled Oligomers and Dendrimers for Two-Photon Absorption

Andraud¹,

Fortrie²,

Barsu³

et al. 2008

Photoresponsive Polymers II

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International audienceThe first part of this review presents the state of the art on two-photon absorbing molecules. Earlyworks concerned the optimization of dipolar push–pull molecules. Recently, the synthesis of linearand branched centrosymmetrical quadrupolar molecules led to higher nonlinearities, but still far from reachingthe fundamental limits of molecular two-photon cross-sections.The second part of this review summarizes our theoretical and experimental results on fluorene-basedoligomers, and branched oligomers (V-shape molecules and dendrimers). They are model molecules to investigatean alternative approach based on spatial assemblies of nonsubstituted π-electronsystems that are coupled by dipole–dipole interactions. In all geometries, two-photon absorptioncross-sections have superlinear dependencies that depend on coupling energies and oligomer sizes. Theseresults are well rationalized by an excitonic model based on N interactingthree-level systems. Analytical expressions for one-photon and two-photon energies and absorption strengthsare derived for linear oligomers. An accurate calculation of large exitonic systems is obtained by diagonalizingthe Hamiltonian operator on a reduced basis set

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Excitonically Coupled Oligomers and Dendrimers for Two-Photon Absorption

Andraud¹,

Fortrie²,

Barsu³

et al. 2008

Photoresponsive Polymers II

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“…Finally, spectrally selective filters may also be placed between upconverter and solar cell to reflect all radiation in the absorption range of the upconverting material, increasing the light intensity in the upconverting material. Positioning luminescent materials inside a cavity is a technique used also in other applications, like e.g.,, laser technologies [38]. Other methods of enhancing the intensity, like e.g., quantum dots [39] are beyond the scope of this work and are only mentioned here for reference.…”

Section: Upconversionmentioning

confidence: 99%

Spectrally-Selective Photonic Structures for PV Applications

et al. 2010

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Abstract:We review several examples of how spectrally-selective photonic structures may be used to improve solar cell systems. Firstly, we introduce different spectrally-selective structures that are based on interference effects. Examples shown include Rugate filter, edge filter and 3D photonic crystals such as artificial opals. In the second part, we discuss several examples of photovoltaic (PV) concepts that utilize spectral selectivity such as fluorescence collectors, upconversion systems, spectrum splitting concepts and the intermediate reflector concept. The potential of spectrally selective filters in the context of solar cells is discussed.

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“…Among many specific phenomena derived from the optical nonlinearity of conjugated organic molecules, two-photon absorption (TPA) is attractive because of its promising applications in various fields such as three-dimensional optical data storage [1-4], two-photon excited fluorescence microscopy [5,6], microfabrication [7][8][9][10], two-photon upconverted lasing [11,12], and photondynamic therapy [13,14]. To fully realize these applications, an intense worldwide effort has been made on the research of designing organic materials with high TPA cross section (  ) at desirable wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Multi-carbazole derivatives for two-photon absorption data storage: Synthesis, optical properties and theoretical calculation

Yang

Wang

et al. 2010

Sci. China Chem.

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BCPBC), with different conjugated arms, have been designed and synthesized. Their one-and two-photon absorption (TPA) and excited fluorescence properties have been experimentally investigated. The two-photon absorption cross-sections of two compounds were estimated by two-photon excited fluorescence technique using 200 fs, 76 MHz, Ti:sapphire laser, which are 22 and 154 GM for BCSPC and BCPBC, respectively. The optimal excitation wavelengths are 780 nm for both BCSPC and BCPBC. A data recording experiment proved the potential application of the materials.initiator, optical data storage, fluorescence, two-photon absorption, theoretical calculation

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Efficient, two-photon pumped green upconverted cavity lasing in a new dye

Cited by 144 publications

References 22 publications

Excitonically Coupled Oligomers and Dendrimers for Two-Photon Absorption

Excitonically Coupled Oligomers and Dendrimers for Two-Photon Absorption

Spectrally-Selective Photonic Structures for PV Applications

Multi-carbazole derivatives for two-photon absorption data storage: Synthesis, optical properties and theoretical calculation

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