Two-photon absorption induced photoluminescence in para-sexiphenyl nano-needles

Kang Jun Liu; G. Hernandez-Sosa; H. Sitter; Chun Feng Zhang; Zhi Wei Dong; Yong Li Yan; Shi Xiong Qian

doi:10.1016/j.cplett.2007.07.108

Two-photon absorption induced photoluminescence in para-sexiphenyl nano-needles

Kang Jun Liu
, G. Hernandez-Sosa
, H. Sitter
, Chun Feng Zhang
, Zhi Wei Dong
, Yong Li Yan
, Shi Xiong Qian^*

^*Corresponding author for this work

Fudan University
Johannes Kepler University Linz

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We studied the photoluminescence (PL) properties of self-organized para-sexiphenyl (PSP) nano-needles with linear and nonlinear optical excitation. Excited by femtosecond pulses, two-photon absorption (TPA) induced PL emission peaks corresponding to the vibronic transitions in PSP molecules were observed. Polarization-dependent photoluminescence measurements reveal that the TPA induced PL in the highly-ordered structures, similar with the linear excitation case, is strongly dependent on the excitation polarization. The mechanism that the nonlinear transition dipole moment is oriented parallel to the long axis of the molecular for the π-π^* absorption in PSP is suggested to explain these strong polarization effects.

Original language	English
Pages (from-to)	83-86
Number of pages	4
Journal	Chemical Physics Letters
Volume	446
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2007.07.108
State	Published - 26 Sep 2007
Externally published	Yes

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title = "Two-photon absorption induced photoluminescence in para-sexiphenyl nano-needles",

abstract = "We studied the photoluminescence (PL) properties of self-organized para-sexiphenyl (PSP) nano-needles with linear and nonlinear optical excitation. Excited by femtosecond pulses, two-photon absorption (TPA) induced PL emission peaks corresponding to the vibronic transitions in PSP molecules were observed. Polarization-dependent photoluminescence measurements reveal that the TPA induced PL in the highly-ordered structures, similar with the linear excitation case, is strongly dependent on the excitation polarization. The mechanism that the nonlinear transition dipole moment is oriented parallel to the long axis of the molecular for the π-π* absorption in PSP is suggested to explain these strong polarization effects.",

author = "Liu, \{Kang Jun\} and G. Hernandez-Sosa and H. Sitter and Zhang, \{Chun Feng\} and Dong, \{Zhi Wei\} and Yan, \{Yong Li\} and Qian, \{Shi Xiong\}",

year = "2007",

month = sep,

day = "26",

doi = "10.1016/j.cplett.2007.07.108",

language = "英语",

volume = "446",

pages = "83--86",

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TY - JOUR

T1 - Two-photon absorption induced photoluminescence in para-sexiphenyl nano-needles

AU - Liu, Kang Jun

AU - Hernandez-Sosa, G.

AU - Sitter, H.

AU - Zhang, Chun Feng

AU - Dong, Zhi Wei

AU - Yan, Yong Li

AU - Qian, Shi Xiong

PY - 2007/9/26

Y1 - 2007/9/26

N2 - We studied the photoluminescence (PL) properties of self-organized para-sexiphenyl (PSP) nano-needles with linear and nonlinear optical excitation. Excited by femtosecond pulses, two-photon absorption (TPA) induced PL emission peaks corresponding to the vibronic transitions in PSP molecules were observed. Polarization-dependent photoluminescence measurements reveal that the TPA induced PL in the highly-ordered structures, similar with the linear excitation case, is strongly dependent on the excitation polarization. The mechanism that the nonlinear transition dipole moment is oriented parallel to the long axis of the molecular for the π-π* absorption in PSP is suggested to explain these strong polarization effects.

AB - We studied the photoluminescence (PL) properties of self-organized para-sexiphenyl (PSP) nano-needles with linear and nonlinear optical excitation. Excited by femtosecond pulses, two-photon absorption (TPA) induced PL emission peaks corresponding to the vibronic transitions in PSP molecules were observed. Polarization-dependent photoluminescence measurements reveal that the TPA induced PL in the highly-ordered structures, similar with the linear excitation case, is strongly dependent on the excitation polarization. The mechanism that the nonlinear transition dipole moment is oriented parallel to the long axis of the molecular for the π-π* absorption in PSP is suggested to explain these strong polarization effects.

UR - https://www.scopus.com/pages/publications/34548498387

U2 - 10.1016/j.cplett.2007.07.108

DO - 10.1016/j.cplett.2007.07.108

M3 - 文章

AN - SCOPUS:34548498387

SN - 0009-2614

VL - 446

SP - 83

EP - 86

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Two-photon absorption induced photoluminescence in para-sexiphenyl nano-needles

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