Journal
ACS PHOTONICS
Volume 5, Issue 9, Pages 3608-3612Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.8b00469
Keywords
2D nanomaterials; black phosphorus; nonlinear optics; Z-scan; nonlinear absorption
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Funding
- Science Foundation Ireland (SFI) [12/IA/1306]
- Science Foundation Ireland (SFI) [12/IA/1306] Funding Source: Science Foundation Ireland (SFI)
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Atomically thin materials are exhibiting unique physical properties. This work investigates the size dependent nonlinear optical response of black phosphorus nanosheets for nanosecond laser pulses. Material is prepared with the use of Liquid Phase Exfoliation. Experiments are performed using open aperture Z-scan technique at 532 nm wavelength with ND:Yag, 10 Hz ns as laser source. We report that the nonlinear absorption coefficient of black phosphorus is strongly dependent on flake lateral dimension as well as laser intensity.
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