Crystalline GaSb-core optical fibers with room-temperature photoluminescence
| Autor: | F. Laurell, Seunghan Song, A. V. Cuervo Covian, S. K. Svendsen, Michael Fokine, Anna C. Peacock, Jifeng Liu, Noel Healy, Ulf Osterberg, John Ballato, Ursula J. Gibson |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Optical fiber
Photoluminescence Materials science Band gap Scanning electron microscope Oxide 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Electronic Optical and Magnetic Materials law.invention 010309 optics symbols.namesake chemistry.chemical_compound chemistry law 0103 physical sciences symbols Crystallite Fiber Composite material 0210 nano-technology Raman spectroscopy |
| Zdroj: | Optical Materials Express |
| Popis: | Glass-clad, GaSb-core fibers were drawn and subsequently laser annealed. The asdrawn fibers were found to be polycrystalline, possess Sb inclusions, and have oxide contamination concentrations of less than 3 at%. Melting and resolidifying regions in the cores using 10.6 µm CO2 laser radiation yielded single crystalline zones with enhanced photoluminescence (PL), including the first observation of strong room temperature PL from a crystalline core fiber. Annealed fibers show low values of tensile strain and a bandgap close to that of bulk GaSb. © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|