Amplified spontaneous emission and lasing properties of bisfluorene-cored dendrimers

Ribierre, J. C., Tsiminis, G., Richardson, S., Turnbull, G. A., Samuel, I. D. W., Barcena, H. and Burn, P. (2007) Amplified spontaneous emission and lasing properties of bisfluorene-cored dendrimers. Applied Physics Letters, 91 8: 081108-1-081108-3. doi:10.1063/1.2761833

Author Ribierre, J. C.
Tsiminis, G.
Richardson, S.
Turnbull, G. A.
Samuel, I. D. W.
Barcena, H.
Burn, P.
Title Amplified spontaneous emission and lasing properties of bisfluorene-cored dendrimers
Journal name Applied Physics Letters   Check publisher's open access policy
ISSN 0003-6951
Publication date 2007-08-21
Year available 2007
Sub-type Article (original research)
DOI 10.1063/1.2761833
Volume 91
Issue 8
Start page 081108-1
End page 081108-3
Total pages 3
Place of publication United States
Publisher American Institute of Physics
Collection year 2008
Language eng
Subject 240402 Quantum Optics and Lasers
780102 Physical sciences
Abstract A study of the amplified spontaneous emission (ASE) properties of three bisfluorene-cored dendrimers in the solid state is reported. The results show that the dendron type has a strong impact on the photoluminescence quantum yield and affects the ASE threshold, the optical gain, and loss coefficients. Optically pumped distributed feedback lasers operating in the blue spectral region were fabricated by spin coating the dendrimer films on top of a two-dimensional corrugated fused silica substrate. A best lasing threshold of 4.5 mu J/cm(2) and a slope efficiency of 8.3% were obtained, which demonstrate the high potential of these materials for laser applications. (c) 2007 American Institute of Physics.
Keyword Physics, Applied
Organic Semiconductor
Conjugated Polymers
Polyfluorene Lasers
Gain Media
Q-Index Code C1
Q-Index Status Confirmed Code

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Created: Tue, 18 Mar 2008, 16:12:42 EST by Darryl Greensill on behalf of School of Chemistry & Molecular Biosciences