| Autor: |
Woodward, RI, Howe, RCT, Runcorn, TH, Hu, G, Torrisi, F, Kelleher, EJR, Hasan, T |
| Přispěvatelé: |
Howe, Richard [0000-0001-5086-0699], Hu, Guohua [0000-0001-9296-1236], Torrisi, Felice [0000-0002-6144-2916], Hasan, Tawfique [0000-0002-6250-7582], Apollo - University of Cambridge Repository |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
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| Popis: |
We fabricate a free-standing molybdenum diselenide (MoSe2) saturable absorber by embedding liquid-phase exfoliated few-layer MoSe2 flakes into a polymer film. The MoSe2-polymer composite is used to Q-switch fiber lasers based on ytterbium (Yb), erbium (Er) and thulium (Tm) gain fiber, producing trains of microsecond-duration pulses with kilohertz repetition rates at 1060 nm, 1566 nm and 1924 nm, respectively. Such operating wavelengths correspond to sub-bandgap saturable absorption in MoSe2, which is explained in the context of edge-states, building upon studies of other semiconducting transition metal dichalcogenide (TMD)-based saturable absorbers. Our work adds few-layer MoSe2 to the growing catalog of TMDs with remarkable optical properties, which offer new opportunities for photonic devices. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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