Thickness dependence of amplified spontaneous emission in low-absorbing organic waveguides

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Title: Thickness dependence of amplified spontaneous emission in low-absorbing organic waveguides
Authors: Calzado Estepa, Eva María | Gutiérrez Ramírez, Manuel | Boj Giménez, Pedro | Díaz-García, María A.
Research Group/s: Física de la Materia Condensada
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Departamento de Física Aplicada | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Thickness | Amplified spontaneous emission | Low-absorbing | Organic waveguides
Knowledge Area: Física Aplicada | Óptica | Física de la Materia Condensada
Issue Date: 24-May-2012
Publisher: Optical Society of America
Citation: CALZADO, Eva M., et al. “Thickness dependence of amplified spontaneous emission in low-absorbing organic waveguides”. Applied Optics. Vol. 51, No. 16 (June 2012). ISSN 0003-6935, pp. 3287-3293
Abstract: The effect of varying film thickness (h) on the amplified spontaneous emission (ASE) properties of 0.5 wt.% perylenediimide-doped polystyrene waveguides is reported. The threshold dependence on h, not previously investigated in detail, is analyzed in terms of the film absorption and photoluminescence, the confinement of the fundamental waveguide mode (TE0), and the presence of high-order modes. For h < 400 nm and down to 150 nm, the ASE wavelength blueshifts, while the linewidth and threshold increase. The detrimental ASE operation in very thin films is due to the low absorption as well as to the poor confinement of the TE0 mode.
Sponsor: Support from the Spanish Government (MEC) and the European Community (FEDER) through grants MAT2008-06648-C02 and MAT2011-28167-C02 and from the University of Alicante through grant GRE10-07. M. G. R. is supported by a CSIC fellowship within the program JAE.
URI: http://hdl.handle.net/10045/33389
ISSN: 1559-128X (Print) | 2155-3165 (Online)
DOI: 10.1364/AO.51.003287
Language: eng
Type: info:eu-repo/semantics/article
Rights: This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-51-16-3287. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Peer Review: si
Publisher version: http://dx.doi.org/10.1364/AO.51.003287
Appears in Collections:INV - Física de la Materia Condensada - Artículos de Revistas

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