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EnglishThe excellent luminescence and gain properties of substituted oligothiophenes are exploited to imprint one-dimensional photonic crystals for the fabrication of printed distributed feedback (DFB) cavities. We demonstrate the dry-printing of organic semiconductor lasers, carrying out the realization of a complete device by a single nanofabrication step, which can be perfectly integrated with other existing planar semiconductor processing and etching technologies. In particular, a thiophene-based pentamer with very good amplified spontaneous emission and optical gain properties was used to fabricate a single-mode, first-order DFB lasers exhibiting an emission with a linewidth of 1.1 nm at about 636 nm for excitation fluences larger than 27 μJ/cm2. These results clearly indicate that substituted oligothiophene-S,S- dioxides are promising candidates for solid-state lasers realizable by emerging nanopatteming technologies.
| Titolo: | First order imprinted organic distributed feedback laser |
| Autori: | |
| Data di pubblicazione: | 2005 |
| Rivista: | |
| Abstract: | The excellent luminescence and gain properties of substituted oligothiophenes are exploited to imprint one-dimensional photonic crystals for the fabrication of printed distributed feedback (DFB) cavities. We demonstrate the dry-printing of organic semiconductor lasers, carrying out the realization of a complete device by a single nanofabrication step, which can be perfectly integrated with other existing planar semiconductor processing and etching technologies. In particular, a thiophene-based pentamer with very good amplified spontaneous emission and optical gain properties was used to fabricate a single-mode, first-order DFB lasers exhibiting an emission with a linewidth of 1.1 nm at about 636 nm for excitation fluences larger than 27 μJ/cm2. These results clearly indicate that substituted oligothiophene-S,S- dioxides are promising candidates for solid-state lasers realizable by emerging nanopatteming technologies. |
| Handle: | http://hdl.handle.net/11587/109138 |
| Appare nelle tipologie: | Articolo pubblicato su Rivista |
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