Datum
2020-02-12Metadata
Zur Langanzeige
Aufsatz
Two-dimensional Wrinkle Resonators for Random Lasing in Organic Glasses
Zusammenfassung
Random lasers consisting of slab waveguides with two-dimensional disordered wrinkling patterns that act as scattering resonators are reported. As active material 2,2′,7,7′-tetraphenyl-9,9′-spirobifluorene is used which is sandwiched between an oxidized silicon wafer and a cladding with higher glass transition temperature. Wrinkles with tailorable periodicity have been induced by thermal annealing. Photopumping experiments show the transition from amplified spontaneous emission to a multiple peak laser spectrum with linewidths as low as 0.1 nm, demonstrating the applicability of this approach for random laser design.
Zitierform
In: Scientific Reports 10 (2020-02-12) , S. 2434 ; ISSN 2045-2322Förderhinweis
Gefördert durch den Publikationsfonds der Universität KasselZitieren
@article{doi:10.17170/kobra-202003131070,
author={Hoinka, Nicolai Morten and Ostwald, Christoph and Fuhrmann-Lieker, Thomas},
title={Two-dimensional Wrinkle Resonators for Random Lasing in Organic Glasses},
journal={Scientific Reports},
year={2020}
}
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2020-03-16T10:28:31Z 2020-03-16T10:28:31Z 2020-02-12 doi:10.17170/kobra-202003131070 http://hdl.handle.net/123456789/11482 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International http://creativecommons.org/licenses/by-sa/4.0/ lasers, LEDs and light sources materials chemistry materials for optics optical physics physical chemistry 530 540 Two-dimensional Wrinkle Resonators for Random Lasing in Organic Glasses Aufsatz Random lasers consisting of slab waveguides with two-dimensional disordered wrinkling patterns that act as scattering resonators are reported. As active material 2,2′,7,7′-tetraphenyl-9,9′-spirobifluorene is used which is sandwiched between an oxidized silicon wafer and a cladding with higher glass transition temperature. Wrinkles with tailorable periodicity have been induced by thermal annealing. Photopumping experiments show the transition from amplified spontaneous emission to a multiple peak laser spectrum with linewidths as low as 0.1 nm, demonstrating the applicability of this approach for random laser design. open access Hoinka, Nicolai Morten Ostwald, Christoph Fuhrmann-Lieker, Thomas doi:10.1038/s41598-020-59236-4 publishedVersion ISSN 2045-2322 Scientific Reports 2434 10 false
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