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Applied Physics Letters / Volume 101 / Issue 9 / PHOTONICS AND OPTOELECTRONICS

Appl. Phys. Lett. 101, 091110 (2012); http://dx.doi.org/10.1063/1.4748120 (4 pages)

Low-threshold blue lasing from silk fibroin thin films

Stefano Toffanin1, Sunghwan Kim2, Susanna Cavallini1, Marco Natali1, Valentina Benfenati1, Jason J. Amsden2, David L. Kaplan2, Roberto Zamboni3, Michele Muccini1, and Fiorenzo G. Omenetto2,4

1Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), via P. Gobetti 101, I-40129 Bologna, Italy
2Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford 02155, USA
3Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Sintesi Organica e Fotoreattività (ISOF), via P. Gobetti 101, I-40129 Bologna, Italy
4Department of Physics, Tufts University, 4 Colby Street, Medford 02155, USA

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(Received 2 July 2012; accepted 13 August 2012; published online 29 August 2012)

Silk is a natural biocompatible material that can be integrated in a variety of photonic systems and optoelectronic devices. The silk replication of patterned substrates with features down to tens of nanometers is exploited to realize highly transparent, mechanically stable, and free-standing structures with optical wavelength size. We demonstrate organic lasing from a blue-emitting stilbene-doped silk film spin-coated onto a one-dimensional distributed feedback grating (DFB). The lasing threshold is lower than that of organic DFB lasers based on the same active dye. These findings pave the way to the development of an optically active biocompatible technological platform based on silk.

© 2012 American Institute of Physics

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KEYWORDS, PACS, and IPC

Keywords

diffraction gratings, distributed feedback lasers, dye lasers, spin coating

PACS

International Patent Classification (IPC)

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.4748120

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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    References

    K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi, Appl. Phys. Lett. 92, 243306 (2008)APPLAB000092000024243306000001.

    M. Salerno, G. Gigli, M. Zavelani-Rossi, S. Perissinotto, and G. Lanzani, Appl. Phys. Lett. 90, 111110 (2007)APPLAB000090000011111110000001.

    L. Sznitko, J. Mysliwiec, P. Karpinski, K. Palewska, K. Parafiniuk, S. Bartkiewicz, I. Rau, F. Kajzar, and A. Miniewicz, Appl. Phys. Lett. 99, 031107 (2011)APPLAB000099000003031107000001.


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