Time-resolved hyper-Rayleigh scattering:measuring first hyperpolarizabilities Beta of fluorescent molecules

O.F.J. Noordman, O.F.J. Noordman, N.F. van Hulst

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Abstract

Time-resolved hyper-Rayleigh scattering experiments using a femtosecond mode-locked Ti-sapphire laser are presented. The technique is capable of discriminating between hyper-Rayleigh scattered light and fluorescent emission induced by multiphoton absorption with a time resolution of 80 ps. Measurements o­n the non-fluorescent organic molecules crystal violet and calix- [4]arene demonstrate that the technique can measure first hyperpolarizabilities beta consistent with experiments using a Q-switched Nd:YAG laser. The first hyperpolarizability beta of a fluorescent molecule, which is often overestimated when using a nanosecond laser system, can be corrected for long-term fluorescence using the time-resolved technique as is demonstrated for the octupolar molecule 1,3,5-tris[(4- pyridyl)ethynyl]benzene.
Original languageUndefined
Pages (from-to)145-150
Number of pages6
JournalChemical physics letters
Volume253
Issue number253
DOIs
Publication statusPublished - 1996

Keywords

  • METIS-129361
  • IR-24560

Cite this

Noordman, O.F.J. ; Noordman, O.F.J. ; van Hulst, N.F. / Time-resolved hyper-Rayleigh scattering:measuring first hyperpolarizabilities Beta of fluorescent molecules. In: Chemical physics letters. 1996 ; Vol. 253, No. 253. pp. 145-150.
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Time-resolved hyper-Rayleigh scattering:measuring first hyperpolarizabilities Beta of fluorescent molecules. / Noordman, O.F.J.; Noordman, O.F.J.; van Hulst, N.F.

In: Chemical physics letters, Vol. 253, No. 253, 1996, p. 145-150.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Time-resolved hyper-Rayleigh scattering:measuring first hyperpolarizabilities Beta of fluorescent molecules

AU - Noordman, O.F.J.

AU - Noordman, O.F.J.

AU - van Hulst, N.F.

PY - 1996

Y1 - 1996

N2 - Time-resolved hyper-Rayleigh scattering experiments using a femtosecond mode-locked Ti-sapphire laser are presented. The technique is capable of discriminating between hyper-Rayleigh scattered light and fluorescent emission induced by multiphoton absorption with a time resolution of 80 ps. Measurements o­n the non-fluorescent organic molecules crystal violet and calix- [4]arene demonstrate that the technique can measure first hyperpolarizabilities beta consistent with experiments using a Q-switched Nd:YAG laser. The first hyperpolarizability beta of a fluorescent molecule, which is often overestimated when using a nanosecond laser system, can be corrected for long-term fluorescence using the time-resolved technique as is demonstrated for the octupolar molecule 1,3,5-tris[(4- pyridyl)ethynyl]benzene.

AB - Time-resolved hyper-Rayleigh scattering experiments using a femtosecond mode-locked Ti-sapphire laser are presented. The technique is capable of discriminating between hyper-Rayleigh scattered light and fluorescent emission induced by multiphoton absorption with a time resolution of 80 ps. Measurements o­n the non-fluorescent organic molecules crystal violet and calix- [4]arene demonstrate that the technique can measure first hyperpolarizabilities beta consistent with experiments using a Q-switched Nd:YAG laser. The first hyperpolarizability beta of a fluorescent molecule, which is often overestimated when using a nanosecond laser system, can be corrected for long-term fluorescence using the time-resolved technique as is demonstrated for the octupolar molecule 1,3,5-tris[(4- pyridyl)ethynyl]benzene.

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