Femtosecond pump-probe investigation on relaxation of photoexcitations and spectral narrowing of photoluminescence for PPV

Author

Sae Chae Jeoung ; Yong Hee Kim ; Dongho Kim ; Ja-Young Han ; Shim, H.K.

Author_Institution

Nat. Creative Res. Initiatives Center for Ultrafast Opt. Characteristics Control, Korea Res. Inst. of Stand. & Sci., Taejon, South Korea

Volume

2

fYear

1999

fDate

Aug. 30 1999-Sept. 3 1999

Firstpage

431

Abstract

We report femtosecond pump-probe experimental results and emission spectral changes in PPV with a change of excitation power density in order to have a deeper understanding on the primary photoexcitations and the nature of spectrally narrowed emission (SNE).

Keywords

high-speed optical techniques; optical polymers; optical pumping; photoluminescence; spectral line narrowing; stimulated emission; superradiance; PPV; emission spectral changes; excitation power density; femtosecond pump-probe experimental results; femtosecond pump-probe investigation; photoexcitation; photoluminescence; primary photoexcitations; spectral narrowing; spectrally narrowed emission; Absorption; Bleaching; Excitons; Optical control; Optical films; Optical polymers; Optical pumping; Stationary state; Stimulated emission; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on

Conference_Location

Seoul, South Korea

Print_ISBN

0-7803-5661-6

Type

conf

DOI

10.1109/CLEOPR.1999.811505

Filename

811505