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- Bernard Wenger
- University of Cambridge 1 Cavendish Laboratory, , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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- Nicolas Tétreault
- University of Cambridge 2 Nanoscience Centre, , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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- Mark E. Welland
- University of Cambridge 2 Nanoscience Centre, , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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- Richard H. Friend
- University of Cambridge 1 Cavendish Laboratory, , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
書誌事項
- 公開日
- 2010-11-08
- DOI
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- 10.1063/1.3509405
- 公開者
- AIP Publishing
この論文をさがす
説明
<jats:p>Herein we report a low-threshold organic laser device based on semiconducting poly(9,9′-dioctylfluoren-2,7-diyl-alt-benzothiadiazole) (F8BT) encapsulated in a mechanically stretchable polydimethylsiloxane (PDMS) matrix. We take advantage of the natural flexibility of PDMS to alter the periodicity of the distributed feedback grating which in turn tunes the gain wavelength at which the resonant feedback is obtained. This way, we demonstrate that low-threshold lasing [6.1 μJ cm−2 (5.3 nJ)] is maintained over a large stretching range of 0%–7% which translates into a tuning range of about 20 nm.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 97 (19), 193303-, 2010-11-08
AIP Publishing