Ultrafast gain and excited-state absorption in luminescent polymers: Pump-wavelength invariance

Dan Vacar; Arthur Dogariu; Alan J. Heeger

doi:10.1016/S0009-2614(98)00485-0

Ultrafast gain and excited-state absorption in luminescent polymers: Pump-wavelength invariance

Dan Vacar, Arthur Dogariu, Alan J. Heeger

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

13 Scopus citations

Abstract

We report ultrafast pump-and-probe results for solutions and films of luminescent conjugated polymers. Both photoinduced absorption (PA) and stimulated emission (SE) features were recorded in the excited-state spectrum. The time evolution of the photoexcitations responsible for SE and PA were monitored as a function of the pump wavelength. We find that the PA and SE spectral features and decay dynamics of the excited state are independent of the pump wavelength. This insensitivity to pump wavelength is important for polymer-based photonic applications such as photopumped lasers and ultrafast holographic switches.

Original language	English (US)
Pages (from-to)	58-62
Number of pages	5
Journal	Chemical Physics Letters
Volume	290
Issue number	1-3
DOIs	https://doi.org/10.1016/S0009-2614(98)00485-0
State	Published - Jun 26 1998
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0009-2614(98)00485-0

Cite this

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title = "Ultrafast gain and excited-state absorption in luminescent polymers: Pump-wavelength invariance",

abstract = "We report ultrafast pump-and-probe results for solutions and films of luminescent conjugated polymers. Both photoinduced absorption (PA) and stimulated emission (SE) features were recorded in the excited-state spectrum. The time evolution of the photoexcitations responsible for SE and PA were monitored as a function of the pump wavelength. We find that the PA and SE spectral features and decay dynamics of the excited state are independent of the pump wavelength. This insensitivity to pump wavelength is important for polymer-based photonic applications such as photopumped lasers and ultrafast holographic switches.",

author = "Dan Vacar and Arthur Dogariu and Heeger, {Alan J.}",

note = "Funding Information: We thank Jun Gao for assistance with sample preparation. We benefited from discussions with Kirk Miller, Dr. Daniel Moses and Dr. Duncan W. McBranch. This work was supported by the NSF under DMR 95–10387 and by the Los Alamos National Laboratory (STB/UC: 96–136). Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "1998",

month = jun,

day = "26",

doi = "10.1016/S0009-2614(98)00485-0",

language = "English (US)",

volume = "290",

pages = "58--62",

journal = "Chemical Physics Letters",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Ultrafast gain and excited-state absorption in luminescent polymers

T2 - Pump-wavelength invariance

AU - Vacar, Dan

AU - Dogariu, Arthur

AU - Heeger, Alan J.

N1 - Funding Information: We thank Jun Gao for assistance with sample preparation. We benefited from discussions with Kirk Miller, Dr. Daniel Moses and Dr. Duncan W. McBranch. This work was supported by the NSF under DMR 95–10387 and by the Los Alamos National Laboratory (STB/UC: 96–136). Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 1998/6/26

Y1 - 1998/6/26

N2 - We report ultrafast pump-and-probe results for solutions and films of luminescent conjugated polymers. Both photoinduced absorption (PA) and stimulated emission (SE) features were recorded in the excited-state spectrum. The time evolution of the photoexcitations responsible for SE and PA were monitored as a function of the pump wavelength. We find that the PA and SE spectral features and decay dynamics of the excited state are independent of the pump wavelength. This insensitivity to pump wavelength is important for polymer-based photonic applications such as photopumped lasers and ultrafast holographic switches.

AB - We report ultrafast pump-and-probe results for solutions and films of luminescent conjugated polymers. Both photoinduced absorption (PA) and stimulated emission (SE) features were recorded in the excited-state spectrum. The time evolution of the photoexcitations responsible for SE and PA were monitored as a function of the pump wavelength. We find that the PA and SE spectral features and decay dynamics of the excited state are independent of the pump wavelength. This insensitivity to pump wavelength is important for polymer-based photonic applications such as photopumped lasers and ultrafast holographic switches.

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U2 - 10.1016/S0009-2614(98)00485-0

DO - 10.1016/S0009-2614(98)00485-0

M3 - Article

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VL - 290

SP - 58

EP - 62

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Ultrafast gain and excited-state absorption in luminescent polymers: Pump-wavelength invariance

Abstract

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