Journal ArticleDOI
Probing two-photon excitation dynamics using ultrafast laser pulses
TLDR
In this article, the two-photon excitation dynamics of two new dyes, N, N -diphenyl-7-[2-(4-piridinyl) ethenyl]-9,9-di- n -decyl-fluoren-2-amine (AF50) and (7-benzothiazol-2,yl-9, 9-diethylfluoren- 2-yl)-9, nine, 9About:
This article is published in Optics Communications.The article was published on 1998-12-01. It has received 114 citations till now. The article focuses on the topics: Two-photon absorption & Excited state.read more
Citations
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Journal ArticleDOI
Multiphoton Absorbing Materials : Molecular Designs, Characterizations, and Applications
TL;DR: Nonlinear Optical Characterizations of Multiphoton Active Materials 1282 5.2.1.
Journal ArticleDOI
Enhanced two-photon absorption of organic chromophores: theoretical and experimental assessments ∗∗
Francesca Terenziani,Claudine Katan,Ekaterina Badaeva,Sergei Tretiak,Mireille Blanchard-Desce +4 more
TL;DR: In this paper, a review of experimental and theoretical methodologies allowing detailed investigation and analysis of two-photon absorption properties of organic chromophores is presented, focusing on symmetric and asymmetric donor/acceptor substitution and branching.
Journal ArticleDOI
Nonlinear optical properties, upconversion and lasing in metal–organic frameworks
TL;DR: This review shines light on CPs and MOFs as optical media for state-of-the-art photonic phenomena such as multi-photon absorption, triplet-triplet annihilation (TTA) and stimulated emission, and outlines design principles, employing both intramolecular and intermolecular strategies, that are necessary for maximizing the NLO response.
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Cooperative Enhancement of Two-Photon Absorption in Multi-branched Structures
TL;DR: In this article, the authors report cooperative enhancement of two-photon absorption in multi-branched structures which may lead to new design criteria for development of highly efficient twophoton materials.
Journal ArticleDOI
New Class of Two-Photon-Absorbing Chromophores Based on Dithienothiophene
Oh Kil Kim,Kwang Sup Lee,Han Young Woo,Kie Soo Kim,Guang S. He,Jacek Swiatkiewicz,Paras N. Prasad +6 more
TL;DR: In this article, two-photon absorption (TPA) chromophores are synthesized; they have dithienothiophene (DTT) as a π-center which is attached by electron donor (D) or electron acceptor (A) at each end through a conjugation.
References
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Two-Photon Laser Scanning Fluorescence Microscopy
TL;DR: The fluorescence emission increased quadratically with the excitation intensity so that fluorescence and photo-bleaching were confined to the vicinity of the focal plane as expected for cooperative two-photon excitation.
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Sensitive measurement of optical nonlinearities using a single beam
TL;DR: In this paper, a single-beam technique for measuring both the nonlinear refractive index and nonlinear absorption coefficient for a wide variety of materials is reported, including a comprehensive theoretical analysis.
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Nonlinear multiphoton processes in organic and polymeric materials
TL;DR: In this paper, a new generation of multifunctional organic materials with large multiphoton absorption cross sections has opened up a number of unique applications in photonics and biophotonics.
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An Analysis of Saturable Absorbers
TL;DR: In this analysis, the effects of possible excited state absorption at the irradiating wavelength are considered and are shown to give rise to a nonsaturable component of the absorption coefficient.