Two-color two-photon excitation of indole using a femtosecond laser regenerative amplifier

Lingling Qiao; Jielei Ni; Zhengle Mao; Chen Wang; Ya Cheng

doi:10.1016/j.optcom.2008.11.034

Two-color two-photon excitation of indole using a femtosecond laser regenerative amplifier

Lingling Qiao
, Jielei Ni
, Zhengle Mao
, Chen Wang^*
, Ya Cheng

^*Corresponding author for this work

CAS - Shanghai Institute of Optics and Fine Mechanics

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

6 Scopus citations

Abstract

The fluorescence emission from indole resulting from two-color two-photon (2C2P) excitation with 400 and 800 nm wavelengths is observed, using the second harmonic and fundamental wavelength of a 800 nm 40 fs pulsed Ti:Sapphire femtosecond (fs) regenerative amplifier operating at a repetition rate of 1 kHz. By delaying one fs laser pulse relative to the other, the cross correlation of fluorescence is observed, which indicates the generation of 2C2P fluorescence signal in the experiment. The strongest 2C2P fluorescence emission characterized by the peak of cross correlation curve suggests optimal temporal overlap of the two fs laser pulses. The 2C2P fluorescence signal is linearly dependent on the total excitation intensity. The fluorescence signals with 400 nm and 800 nm irradiation alone are also demonstrated and discussed in this paper.

Original language	English
Pages (from-to)	1056-1061
Number of pages	6
Journal	Optics Communications
Volume	282
Issue number	5
DOIs	https://doi.org/10.1016/j.optcom.2008.11.034
State	Published - 1 Mar 2009
Externally published	Yes

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10.1016/j.optcom.2008.11.034

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title = "Two-color two-photon excitation of indole using a femtosecond laser regenerative amplifier",

abstract = "The fluorescence emission from indole resulting from two-color two-photon (2C2P) excitation with 400 and 800 nm wavelengths is observed, using the second harmonic and fundamental wavelength of a 800 nm 40 fs pulsed Ti:Sapphire femtosecond (fs) regenerative amplifier operating at a repetition rate of 1 kHz. By delaying one fs laser pulse relative to the other, the cross correlation of fluorescence is observed, which indicates the generation of 2C2P fluorescence signal in the experiment. The strongest 2C2P fluorescence emission characterized by the peak of cross correlation curve suggests optimal temporal overlap of the two fs laser pulses. The 2C2P fluorescence signal is linearly dependent on the total excitation intensity. The fluorescence signals with 400 nm and 800 nm irradiation alone are also demonstrated and discussed in this paper.",

author = "Lingling Qiao and Jielei Ni and Zhengle Mao and Chen Wang and Ya Cheng",

year = "2009",

month = mar,

day = "1",

doi = "10.1016/j.optcom.2008.11.034",

language = "英语",

volume = "282",

pages = "1056--1061",

journal = "Optics Communications",

issn = "0030-4018",

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TY - JOUR

T1 - Two-color two-photon excitation of indole using a femtosecond laser regenerative amplifier

AU - Qiao, Lingling

AU - Ni, Jielei

AU - Mao, Zhengle

AU - Wang, Chen

AU - Cheng, Ya

PY - 2009/3/1

Y1 - 2009/3/1

N2 - The fluorescence emission from indole resulting from two-color two-photon (2C2P) excitation with 400 and 800 nm wavelengths is observed, using the second harmonic and fundamental wavelength of a 800 nm 40 fs pulsed Ti:Sapphire femtosecond (fs) regenerative amplifier operating at a repetition rate of 1 kHz. By delaying one fs laser pulse relative to the other, the cross correlation of fluorescence is observed, which indicates the generation of 2C2P fluorescence signal in the experiment. The strongest 2C2P fluorescence emission characterized by the peak of cross correlation curve suggests optimal temporal overlap of the two fs laser pulses. The 2C2P fluorescence signal is linearly dependent on the total excitation intensity. The fluorescence signals with 400 nm and 800 nm irradiation alone are also demonstrated and discussed in this paper.

AB - The fluorescence emission from indole resulting from two-color two-photon (2C2P) excitation with 400 and 800 nm wavelengths is observed, using the second harmonic and fundamental wavelength of a 800 nm 40 fs pulsed Ti:Sapphire femtosecond (fs) regenerative amplifier operating at a repetition rate of 1 kHz. By delaying one fs laser pulse relative to the other, the cross correlation of fluorescence is observed, which indicates the generation of 2C2P fluorescence signal in the experiment. The strongest 2C2P fluorescence emission characterized by the peak of cross correlation curve suggests optimal temporal overlap of the two fs laser pulses. The 2C2P fluorescence signal is linearly dependent on the total excitation intensity. The fluorescence signals with 400 nm and 800 nm irradiation alone are also demonstrated and discussed in this paper.

UR - https://www.scopus.com/pages/publications/58249128873

U2 - 10.1016/j.optcom.2008.11.034

DO - 10.1016/j.optcom.2008.11.034

M3 - 文章

AN - SCOPUS:58249128873

SN - 0030-4018

VL - 282

SP - 1056

EP - 1061

JO - Optics Communications

JF - Optics Communications

IS - 5

ER -

Two-color two-photon excitation of indole using a femtosecond laser regenerative amplifier

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