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EnglishThe authors report on the fabrication and characterization of an organic distributed feedback laser operating in the near infrared. The device, fabricated by room-temperature nanoimprint lithography, is based on an organic dye hosted by a poly(methylmethacrylate) matrix. The laser emission from an imprinted 620 nm period grating is peaked at 918 nm with a linewidth of 8 A and a pumping threshold of 37 mu J/cm(2), and it is strongly polarized with a polarization contrast as high as 0.99. The lasing wavelength is tunable in the range of 890-930 nm by adjusting the grating period, and the operational lifetime is up to 6x10(3) excitation pulses in vacuum environment. These results demonstrate the possibility of realizing imprinted organic-based near-infrared lasers, thus approaching spectral regions relevant for optical communication applications. (c) 2006 American Institute of Physics
| Autori interni: | ||
| Autori: | P. DEL CARRO; A. CAMPOSEO; R. STABILE; E. MELE; L. PERSANO; R. CINGOLANI; D. PISIGNANO | |
| Titolo: | Near-infrared imprinted distributed feedback lasers | |
| Anno del prodotto: | 2006 | |
| Digital Object Identifier (DOI): | 10.1063/1.2387974 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11568/886074
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