Coherent control of optical emission from a conjugated polymer

被引：27

作者：

Kennedy, SP ^{[1
]}

Garro, N ^{[1
]}

Phillips, RT ^{[1
]}

机构：

[1] Cavendish Lab, Cambridge CB3 0HE, England

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.86.4148

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed that resonant Rayleigh scattering dominates the emission from poly(p-phenylene vinylene) excited with photons at energies below the threshold at which excitonic migration is reduced. The intensity of the resonant emission decays exponentially with a lifetime of up to 450 fs after pulsed excitation. The coherent nature of the emission was confirmed by angular variations in the far-field emission intensity-bright and dark speckles. Persistence of a coherent polarization was demonstrated by coherent control using phase-locked pulses.

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收藏

页码：4148 / 4151

页数：4

相关论文

共 26 条

[1] THEORETICAL INVESTIGATION OF THE LOWEST SINGLET AND TRIPLET-STATES IN POLY(PARA-PHENYLENE VINYLENE)OLIGOMERS [J].

BELJONNE, D ;

SHUAI, Z ;

FRIEND, RH ;

BREDAS, JL .

JOURNAL OF CHEMICAL PHYSICS, 1995, 102 (05) :2042-2049

[2] Photoluminescence spectra of oligo-paraphenylenevinylenes: a joint theoretical and experimental characterization [J].

Cornil, J ;

Beljonne, D ;

Heller, CM ;

Campbell, IH ;

Laurich, BK ;

Smith, DL ;

Bradley, DDC ;

Mullen, K ;

Bredas, JL .

CHEMICAL PHYSICS LETTERS, 1997, 278 (1-3) :139-145

[3]

DAINTY JC, 1984, LUSER SPECKLE RELATE

[4] Electroluminescence in conjugated polymers [J].

Friend, RH ;

Gymer, RW ;

Holmes, AB ;

Burroughes, JH ;

Marks, RN ;

Taliani, C ;

Bradley, DDC ;

Dos Santos, DA ;

Brédas, JL ;

Lögdlund, M ;

Salaneck, WR .

NATURE, 1999, 397 (6715) :121-128

[5] Cooperative and stimulated emission in poly(p-phenylene-vinylene) thin films and solutions [J].

Frolov, SV ;

Vardeny, ZV ;

Yoshino, K .

PHYSICAL REVIEW B, 1998, 57 (15) :9141-9147

[6]

Garro N, 1999, PHYS STATUS SOLIDI B, V215, P211, DOI 10.1002/(SICI)1521-3951(199909)215:1<211::AID-PSSB211>3.0.CO

[7]

2-F

[8] Resonant femtosecond emission from quantum well excitons: The role of Rayleigh scattering and luminescence [J].

Haacke, S ;

Taylor, RA ;

Zimmermann, R ;

BarJoseph, I ;

Deveaud, B .

PHYSICAL REVIEW LETTERS, 1997, 78 (11) :2228-2231

[9] Site-selective fluorescence studies of poly(p-phenylene vinylene) and its derivatives [J].

Harrison, NT ;

Baigent, DR ;

Samuel, IDW ;

Friend, RH ;

Grimsdale, AC ;

Moratti, SC ;

Holmes, AB .

PHYSICAL REVIEW B, 1996, 53 (23) :15815-15822

[10] EXCITON DYNAMICS IU ELECTROLUMINESCENT POLYMERS STUDIED BY FEMTOSECOND TIME-RESOLVED PHOTOLUMINESCENCE SPECTROSCOPY [J].

HAYES, GR ;

SAMUEL, IDW ;

PHILLIPS, RT .

PHYSICAL REVIEW B, 1995, 52 (16) :11569-11572