Investigation of amplified spontaneous emission in oriented films of a liquid crystalline conjugated polymer

G. Heliotis; R. Xia; K. S. Whitehead; G. A. Turnbull; I. D.W. Samuel; D. D.C. Bradley

doi:10.1016/S0379-6779(03)00236-4

Investigation of amplified spontaneous emission in oriented films of a liquid crystalline conjugated polymer

G. Heliotis, R. Xia, K. S. Whitehead, G. A. Turnbull, I. D.W. Samuel, D. D.C. Bradley

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

32 Scopus citations

Abstract

We report a study of the amplified spontaneous emission (ASE) in highly oriented films of dioctyl substituted polyfluorene (PFO). We demonstrate amplification of blue light via ASE measurements on optically pumped aligned PFO planar asymmetric waveguides and investigate the influence that the orientation of the polymer chains has on its properties as an amplifying medium. We show that the threshold energy for ASE and the intensity of the emitted amplified radiation is dependent on the excitation polarization, chain alignment axis and excitation geometry and propose specific optimised excitation configurations for low threshold, efficient ASE. Identical measurements are performed on isotropic PFO films for comparison. © 2003 Elsevier Science B.V. All rights reserved.

Original language	English (US)
Title of host publication	Synthetic Metals
DOIs	https://doi.org/10.1016/S0379-6779(03)00236-4
State	Published - Oct 9 2003
Externally published	Yes

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@inproceedings{818f7514fc174f6c925515245dd745ae,

title = "Investigation of amplified spontaneous emission in oriented films of a liquid crystalline conjugated polymer",

abstract = "We report a study of the amplified spontaneous emission (ASE) in highly oriented films of dioctyl substituted polyfluorene (PFO). We demonstrate amplification of blue light via ASE measurements on optically pumped aligned PFO planar asymmetric waveguides and investigate the influence that the orientation of the polymer chains has on its properties as an amplifying medium. We show that the threshold energy for ASE and the intensity of the emitted amplified radiation is dependent on the excitation polarization, chain alignment axis and excitation geometry and propose specific optimised excitation configurations for low threshold, efficient ASE. Identical measurements are performed on isotropic PFO films for comparison. {\textcopyright} 2003 Elsevier Science B.V. All rights reserved.",

author = "G. Heliotis and R. Xia and Whitehead, {K. S.} and Turnbull, {G. A.} and Samuel, {I. D.W.} and Bradley, {D. D.C.}",

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year = "2003",

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doi = "10.1016/S0379-6779(03)00236-4",

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T1 - Investigation of amplified spontaneous emission in oriented films of a liquid crystalline conjugated polymer

AU - Heliotis, G.

AU - Xia, R.

AU - Whitehead, K. S.

AU - Turnbull, G. A.

AU - Samuel, I. D.W.

AU - Bradley, D. D.C.

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

PY - 2003/10/9

Y1 - 2003/10/9

N2 - We report a study of the amplified spontaneous emission (ASE) in highly oriented films of dioctyl substituted polyfluorene (PFO). We demonstrate amplification of blue light via ASE measurements on optically pumped aligned PFO planar asymmetric waveguides and investigate the influence that the orientation of the polymer chains has on its properties as an amplifying medium. We show that the threshold energy for ASE and the intensity of the emitted amplified radiation is dependent on the excitation polarization, chain alignment axis and excitation geometry and propose specific optimised excitation configurations for low threshold, efficient ASE. Identical measurements are performed on isotropic PFO films for comparison. © 2003 Elsevier Science B.V. All rights reserved.

AB - We report a study of the amplified spontaneous emission (ASE) in highly oriented films of dioctyl substituted polyfluorene (PFO). We demonstrate amplification of blue light via ASE measurements on optically pumped aligned PFO planar asymmetric waveguides and investigate the influence that the orientation of the polymer chains has on its properties as an amplifying medium. We show that the threshold energy for ASE and the intensity of the emitted amplified radiation is dependent on the excitation polarization, chain alignment axis and excitation geometry and propose specific optimised excitation configurations for low threshold, efficient ASE. Identical measurements are performed on isotropic PFO films for comparison. © 2003 Elsevier Science B.V. All rights reserved.

UR - https://linkinghub.elsevier.com/retrieve/pii/S0379677903002364

UR - http://www.scopus.com/inward/record.url?scp=0041828362&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(03)00236-4

DO - 10.1016/S0379-6779(03)00236-4

M3 - Conference contribution

BT - Synthetic Metals

ER -

Investigation of amplified spontaneous emission in oriented films of a liquid crystalline conjugated polymer

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