Synthesis and characterization of the multi-photon absorption and excited-state properties of a neat liquid 4-propyl 4′-butyl diphenyl acetylene

Iam Choon Khoo, Scott Webster, Shoichi Kubo, W. Justin Youngblood, Justin D. Liou, Thomas E. Mallouk, Ping Lin, David J. Hagan, Eric W. Van Stryland

Research output: Contribution to journalArticle

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Abstract

The synthesis, characterization, and quantitative electronic structure modeling of multi-photon absorption properties of a neat liquid L34 (4-propyl 4′-butyl diphenyl acetylene) are reported. The liquid is (linearly) transparent in the visible spectrum, but possesses large two-photon absorption (2PA) and 2PA-induced singlet and triplet excited-state absorption as measured by the Z-scan technique and non-linear transmission measurements using both picosecond and nanosecond pulses. The most dominant contributions to the intensity-dependent non-linear absorption come from the 2PA-induced triplet excited states in the nanosecond time regime. We also present transient absorption spectra of the liquid obtained by nanosecond laser-flash photolysis and compare these results with electronic structure calculations. The energy of the absorption bands, both singlet and triplet are in reasonable agreement with calculations performed with Gaussian 03. The experimentally measured spectra and theoretical electronic structure modeling provide information about the energy levels of the excited states of this liquid, including 2PA and 2PA-induced process that is responsible for its non-linear optical properties.

Original languageEnglish (US)
Pages (from-to)7525-7531
Number of pages7
JournalJournal of Materials Chemistry
Volume19
Issue number40
DOIs
StatePublished - Oct 28 2009

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Acetylene
Excited states
Photons
Electronic structure
Liquids
Absorption spectra
Photolysis
Electron energy levels
Optical properties
diphenyl
Lasers

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

Khoo, Iam Choon ; Webster, Scott ; Kubo, Shoichi ; Youngblood, W. Justin ; Liou, Justin D. ; Mallouk, Thomas E. ; Lin, Ping ; Hagan, David J. ; Van Stryland, Eric W. / Synthesis and characterization of the multi-photon absorption and excited-state properties of a neat liquid 4-propyl 4′-butyl diphenyl acetylene. In: Journal of Materials Chemistry. 2009 ; Vol. 19, No. 40. pp. 7525-7531.
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Synthesis and characterization of the multi-photon absorption and excited-state properties of a neat liquid 4-propyl 4′-butyl diphenyl acetylene. / Khoo, Iam Choon; Webster, Scott; Kubo, Shoichi; Youngblood, W. Justin; Liou, Justin D.; Mallouk, Thomas E.; Lin, Ping; Hagan, David J.; Van Stryland, Eric W.

In: Journal of Materials Chemistry, Vol. 19, No. 40, 28.10.2009, p. 7525-7531.

Research output: Contribution to journalArticle

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AU - Khoo, Iam Choon

AU - Webster, Scott

AU - Kubo, Shoichi

AU - Youngblood, W. Justin

AU - Liou, Justin D.

AU - Mallouk, Thomas E.

AU - Lin, Ping

AU - Hagan, David J.

AU - Van Stryland, Eric W.

PY - 2009/10/28

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N2 - The synthesis, characterization, and quantitative electronic structure modeling of multi-photon absorption properties of a neat liquid L34 (4-propyl 4′-butyl diphenyl acetylene) are reported. The liquid is (linearly) transparent in the visible spectrum, but possesses large two-photon absorption (2PA) and 2PA-induced singlet and triplet excited-state absorption as measured by the Z-scan technique and non-linear transmission measurements using both picosecond and nanosecond pulses. The most dominant contributions to the intensity-dependent non-linear absorption come from the 2PA-induced triplet excited states in the nanosecond time regime. We also present transient absorption spectra of the liquid obtained by nanosecond laser-flash photolysis and compare these results with electronic structure calculations. The energy of the absorption bands, both singlet and triplet are in reasonable agreement with calculations performed with Gaussian 03. The experimentally measured spectra and theoretical electronic structure modeling provide information about the energy levels of the excited states of this liquid, including 2PA and 2PA-induced process that is responsible for its non-linear optical properties.

AB - The synthesis, characterization, and quantitative electronic structure modeling of multi-photon absorption properties of a neat liquid L34 (4-propyl 4′-butyl diphenyl acetylene) are reported. The liquid is (linearly) transparent in the visible spectrum, but possesses large two-photon absorption (2PA) and 2PA-induced singlet and triplet excited-state absorption as measured by the Z-scan technique and non-linear transmission measurements using both picosecond and nanosecond pulses. The most dominant contributions to the intensity-dependent non-linear absorption come from the 2PA-induced triplet excited states in the nanosecond time regime. We also present transient absorption spectra of the liquid obtained by nanosecond laser-flash photolysis and compare these results with electronic structure calculations. The energy of the absorption bands, both singlet and triplet are in reasonable agreement with calculations performed with Gaussian 03. The experimentally measured spectra and theoretical electronic structure modeling provide information about the energy levels of the excited states of this liquid, including 2PA and 2PA-induced process that is responsible for its non-linear optical properties.

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