Measurement of strong nonlinear absorption in stilbene-chloroform solutions, explained by the superposition of two-photon absorption and one-photon absorption from the excited state

Kleinschmidt, J.; Rentsch, S.; Tottleben, W.; Wilhelmi, B.

doi:10.1016/0009-2614(74)80234-4

Cited by 47 publications

(20 citation statements)

References 4 publications

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“…26,27 However, it was recognized in the 1970s that the TPA is often followed by excited state absorption (ESA). 28 Furthermore, nonlinear transmission measurements and Z-scan measurements of organic materials show the presence of ESA. 29,30 Recently, a family of D-π-A molecules has been introduced for TPA applications, known as the AFX 31 .…”

Section: Overview Of Organic Multiphoton Absorbers (Afx)mentioning

confidence: 99%

Optical Pulse Interactions in Nonlinear Excited State Materials

Potasek¹,

McLaughlin²,

Parilov³

2008

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Section: Overview Of Organic Multiphoton Absorbers (Afx)mentioning

confidence: 99%

Optical Pulse Interactions in Nonlinear Excited State Materials

Potasek¹,

McLaughlin²,

Parilov³

2008

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“…3. Схема такого эксперимента, впервые выполненного в рабо-те 150 , сходна со схемой эксперимента по детектированию слабых линий обращенного КРС, описанного в гл. 5.…”

Section: спектроскопия двухфотонного поглощенияunclassified

Problems in laser spectroscopy

Letokhov¹

1976

Usp. Fiz. Nauk

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“…7 Several authors have posited the effects of excited states on nonlinear absorption and refraction, and these effects have been convincingly demonstrated in degenerate four-wave mixing and Z-scan experiments. [8][9][10][11] Evidence of ESA has been demonstrated in NLT and Zscan measurements of organic materials, and effective (intensity dependent) TPA coefficients have been employed to estimate ESA cross sections.…”

Section: Introductionmentioning

confidence: 98%

Combined nonlinear effects in two-photon absorption chromophores at high intensities

Sutherland

McLean

Brant

et al. 2006

Nonlinear Optical Transmission and Multiphoton Processes in Organics IV

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Large two-photon and excited state absorption have been reported in donor-acceptor-substituted π-conjugated molecules. We have performed detailed nonlinear absorption and photophysical measurements on a system of AFX chromophores and calculate the nonlinear transmission based on an effective three-level model. A numerical model that includes far wing linear absorption has been developed and compared with an analytical three-photon absorption model. The models are in accordance and yield excellent agreement with experimental nonlinear transmission data for 0.02-M AFX solutions up to laser intensities ~ 1-5 GW/cm 2 . We have extended our modeling efforts to include some new effects that may be anticipated in this regime, such as stimulated scattering, molecular interactions, and saturation. Effects of chirped pulses and linewidth of the pump laser on stimulated scattering are included. Self-focusing and de-focusing are also considered. We report on our experimental observations of various materials and discuss results with respect to our extended theoretical models.

show abstract

Measurement of strong nonlinear absorption in stilbene-chloroform solutions, explained by the superposition of two-photon absorption and one-photon absorption from the excited state

Cited by 47 publications

References 4 publications

Optical Pulse Interactions in Nonlinear Excited State Materials

Optical Pulse Interactions in Nonlinear Excited State Materials

Problems in laser spectroscopy

Combined nonlinear effects in two-photon absorption chromophores at high intensities

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