| Autor: |
José R. Castro Smirnov, Ahmad Sousaraei, Manuel R. Osorio, Santiago Casado, Jaime J. Hernández, Longfei Wu, Qi Zhang, Ruidong Xia, Daniel Granados, Reinhold Wannemacher, Isabel Rodriguez, Juan Cabanillas-Gonzalez |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
npj Flexible Electronics, Vol 3, Iss 1, Pp 1-7 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2397-4621 |
| DOI: |
10.1038/s41528-019-0062-4 |
| Popis: |
Multi-colored polymer lasers Highly luminescent polymers can work as lasers when incorporated with suitable cavities and now the nano-imprinting makes the fabrication much cheaper and more scalable. An international team led by Prof Juan Cabanillas-Gonzalez from Madrid Institute for Advanced Studies in Nanoscience, Spain demonstrates transparent all-polymer distributed feedback (DFB) lasers in blue, green, yellow and red. The most important step is to make sub-wavelength periodic gratings on the flexible and highly transparent cellulose diacetate substrates by thermal nano-imprinting with high fidelity to maximize the constructive interference effect. As a result, these lasers show narrow linewidths below 1 nm at low power thresholds of several μJ cm^−2, which is comparable to conventional approaches. This large area nano-imprinting method is scalable and adaptable and it enables stackable multi-colored laser emission. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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