Polymer nanofibers as novel light-emitting sources and lasing material

A. Camposeo; L. Persano; D. Pisignano

doi:10.1117/12.2022263

27 September 2013 Polymer nanofibers as novel light-emitting sources and lasing material

A. Camposeo, L. Persano, D. Pisignano

Proceedings Volume 8829, Organic Light Emitting Materials and Devices XVII; 882918 (2013) https://doi.org/10.1117/12.2022263
Event: SPIE Organic Photonics + Electronics, 2013, San Diego, California, United States

Abstract

Polymer micro- and nano-fibers, made of organic light-emitting materials with optical gain, show interesting lasing properties. Fibers with diameters from few tens of nm to few microns can be fabricated by electrospinning, a method based on electrostatic fields applied to a polymer solution. The morphology and emission properties of these fibers, composed of optically inert polymers embedding laser dyes, are characterized by scanning electron and fluorescence microscopy, and lasing is observed under optical pumping for fluences of the order of 10² μJ cm^-2. In addition, lightemitting fibers can be electrospun by conjugated polymers, their blends, and other active organics, and can be exploited in a range of photonic and electronic devices. In particular, waveguiding of light is observed and characterized, showing optical loss coefficient in the range of 10²-10³ cm^-1. The reduced size of these novel laser systems, combined with the possibility of achieving wavelength tunability through transistor or other electrode-based architectures embedding nonlinear molecular layers, and with their peculiar mechanical robustness, open interesting perspectives for realizing miniaturized laser sources to integrate on-chip optical sensors and photonic circuits.

Citation Download Citation

A. Camposeo, L. Persano, and D. Pisignano "Polymer nanofibers as novel light-emitting sources and lasing material", Proc. SPIE 8829, Organic Light Emitting Materials and Devices XVII, 882918 (27 September 2013); https://doi.org/10.1117/12.2022263

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