Influence of the orientation of liquid crystalline poly(9,9- dioctylfluorene) on its lasing properties in a planar microcavity

T. Virgili; D. G. Lidzey; M. Grell; D. D.C. Bradley; S. Stagira; M. Zavelani-Rossi; S. De Silvestri

doi:10.1063/1.1481977

Influence of the orientation of liquid crystalline poly(9,9- dioctylfluorene) on its lasing properties in a planar microcavity

T. Virgili, D. G. Lidzey, M. Grell, D. D.C. Bradley, S. Stagira, M. Zavelani-Rossi, S. De Silvestri

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Abstract

We present a study of optically pumped laser emission from a microcavity containing an oriented layer of the liquid crystalline conjugated polymer poly(9,9-dioctylfluorene). The birefringence of the oriented polymer results in the definition of two cavity modes with electric vectors polarized perpendicular and parallel to the alignment direction. At high excitation density, the emission intensity from the cavity mode polarized parallel to the orientation direction increases rapidly compared to the orthogonal polarized mode and its linewidth narrows from 8 to 2 nm. We identify the parallel-polarized emission as laser action with a threshold excitation density of 7.8×10 19cm-3. © 2002 American Institute of Physics.

Original language	English (US)
Journal	Applied Physics Letters
Volume	80
Issue number	22
DOIs	https://doi.org/10.1063/1.1481977
State	Published - Jun 3 2002
Externally published	Yes

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title = "Influence of the orientation of liquid crystalline poly(9,9- dioctylfluorene) on its lasing properties in a planar microcavity",

abstract = "We present a study of optically pumped laser emission from a microcavity containing an oriented layer of the liquid crystalline conjugated polymer poly(9,9-dioctylfluorene). The birefringence of the oriented polymer results in the definition of two cavity modes with electric vectors polarized perpendicular and parallel to the alignment direction. At high excitation density, the emission intensity from the cavity mode polarized parallel to the orientation direction increases rapidly compared to the orthogonal polarized mode and its linewidth narrows from 8 to 2 nm. We identify the parallel-polarized emission as laser action with a threshold excitation density of 7.8×10 19cm-3. {\textcopyright} 2002 American Institute of Physics.",

author = "T. Virgili and Lidzey, {D. G.} and M. Grell and Bradley, {D. D.C.} and S. Stagira and M. Zavelani-Rossi and {De Silvestri}, S.",

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T1 - Influence of the orientation of liquid crystalline poly(9,9- dioctylfluorene) on its lasing properties in a planar microcavity

AU - Virgili, T.

AU - Lidzey, D. G.

AU - Grell, M.

AU - Bradley, D. D.C.

AU - Stagira, S.

AU - Zavelani-Rossi, M.

AU - De Silvestri, S.

N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27

PY - 2002/6/3

Y1 - 2002/6/3

N2 - We present a study of optically pumped laser emission from a microcavity containing an oriented layer of the liquid crystalline conjugated polymer poly(9,9-dioctylfluorene). The birefringence of the oriented polymer results in the definition of two cavity modes with electric vectors polarized perpendicular and parallel to the alignment direction. At high excitation density, the emission intensity from the cavity mode polarized parallel to the orientation direction increases rapidly compared to the orthogonal polarized mode and its linewidth narrows from 8 to 2 nm. We identify the parallel-polarized emission as laser action with a threshold excitation density of 7.8×10 19cm-3. © 2002 American Institute of Physics.

AB - We present a study of optically pumped laser emission from a microcavity containing an oriented layer of the liquid crystalline conjugated polymer poly(9,9-dioctylfluorene). The birefringence of the oriented polymer results in the definition of two cavity modes with electric vectors polarized perpendicular and parallel to the alignment direction. At high excitation density, the emission intensity from the cavity mode polarized parallel to the orientation direction increases rapidly compared to the orthogonal polarized mode and its linewidth narrows from 8 to 2 nm. We identify the parallel-polarized emission as laser action with a threshold excitation density of 7.8×10 19cm-3. © 2002 American Institute of Physics.

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U2 - 10.1063/1.1481977

DO - 10.1063/1.1481977

M3 - Article

SN - 0003-6951

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 22

ER -

Influence of the orientation of liquid crystalline poly(9,9- dioctylfluorene) on its lasing properties in a planar microcavity

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