Nonlinear optical properties of a new chromophore

He, Guang S.; Yuan, Lixiang; Cheng, Ning; Bhawalkar, Jayant D.; Prasad, Paras N.; Brott, Lawrence L.; Clarson, Stephen J.; Reinhardt, Bruce A.

doi:10.1364/josab.14.001079

Cited by 153 publications

(88 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thereby, attention has progressively moved from the well-known push-pull dipolar molecular structures [34,41,[75][76][77][78][79][80][81][82][83][84][85][86][87][88] to quadrupoles [3,33,36,57,58,63,76,78,81,85,86,[89][90][91][92][93][94][95][96][97][98][99][100][101][102][103][104][105][106][107] and, more recently, toward complex molecular architectures. Quadrupoles have been found to be more efficient than dipoles in terms of TPA, in particular for multiphoton-based opticallimiting applications.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Two‐Photon Absorption of Organic Chromophores: Theoretical and Experimental Assessments

et al. 2008

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Enhanced Two‐Photon Absorption of Organic Chromophores: Theoretical and Experimental Assessments

et al. 2008

View full text Add to dashboard Cite

“…symmetrical conjugated molecules bearing two electron-releasing (D) or electron-withdrawing (A) end-groups. [40,[43][44][45] Indeed quadrupolar systems [27,30,35, have been found to be more efficient than push-pull systems [13,28,46,47,56,64,68,[80][81][82][83][84][85][86][87][88] in terms of TPA in particular for multiphoton-based optical limiting applications. [27,30,39] Such derivatives can display very high TPA cross sections in connection with a quadrupolar intramolecular charge transfer taking place between the ends and the center of the molecules.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Fluorescence, and Two‐Photon Absorption of a Series of Elongated Rodlike and Banana‐Shaped Quadrupolar Fluorophores: A Comprehensive Study of Structure–Property Relationships

Mongin

Porrès

Charlot

et al. 2007

Chemistry A European J

240

204

View full text Add to dashboard Cite

An extensive series of push-push and pull-pull derivatives was prepared from the symmetrical functionalization of an ambivalent core with conjugated rods made from arylenevinylene or arylene-ethynylene building blocks, bearing different acceptor or donor endgroups. Their absorption and photoluminescence as well as their two-photon absorption (TPA) properties in the near infrared (NIR) region have been systematically investigated in order to derive structure-property relationships and lay the guidelines for both spectral tuning and amplification of molecular TPA in the target region. Whatever the nature of the core or of the connectors, push-push systems were found to be more efficient than pull-pull systems and planarization of the core (fluorene vs biphenyl) always leads to an increase of the TPA crosssections. At contrary, increasing the conjugation length as well as replacement of a phenylene moiety by a thienylene moiety in the conjugated rods did not necessarily lead to increased TPA responses. The present study also demonstrated that the topology of the conjugated rods can dramatically influence the TPA properties. This is of particular interest in terms of molecular engineering for specific applications since both TPA properties and photoluminescence characteristics can be considerably affected. It thus becomes possible to optimize the transparency/TPA and fluorescence/TPA efficiency trade-offs, for optical limiting in the red-NIR region (700-900 nm) and TPEF microscopy applications, respectively.

show abstract

“…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.…”

mentioning

confidence: 99%

Excitonically Coupled Oligomers and Dendrimers for Two-Photon Absorption

Andraud¹,

Fortrie²,

Barsu³

et al. 2008

Advances in Polymer Science

View full text Add to dashboard Cite

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

show abstract

Nonlinear optical properties of a new chromophore

Cited by 153 publications

References 23 publications

Enhanced Two‐Photon Absorption of Organic Chromophores: Theoretical and Experimental Assessments

Enhanced Two‐Photon Absorption of Organic Chromophores: Theoretical and Experimental Assessments

Synthesis, Fluorescence, and Two‐Photon Absorption of a Series of Elongated Rodlike and Banana‐Shaped Quadrupolar Fluorophores: A Comprehensive Study of Structure–Property Relationships

Excitonically Coupled Oligomers and Dendrimers for Two-Photon Absorption

Contact Info

Product

Resources

About