TY - JOUR
T1 - Black phosphorus polycarbonate polymer composite for pulsed fibre lasers
AU - Li, Diao
AU - Del Rio Castillo, Antonio Esau
AU - Jussila, Henri
AU - Ye, Guojun
AU - Ren, Zhaoyu
AU - Bai, Jintao
AU - Chen, Xianhui
AU - Lipsanen, Harri
AU - Sun, Zhipei
AU - Bonaccorso, Francesco
PY - 2016/9/1
Y1 - 2016/9/1
N2 - Recently, the re-discovered black phosphorus (BP) has been extensively investigated for both electronic and photonic applications. However, the intrinsic instability of BP caused by moisture or oxygen reaction in ambient atmosphere has overshadowed its practical applications. Here, we present a liquid phase exfoliation-based approach for the production of few-layer BP (FL-BP) and the subsequent mixing with polycarbonate (PC) for the fabrication of a composite, which significantly reduces BP degradation by PC passivation. Experimentally, the functionalized PC few-layer BP (PC/FL-BP) composite shows environmental stability if compared with mechanically exfoliated BP flakes. We then use the PC/FL-BP composite as saturable absorber to study the nonlinear absorption property in a fibre laser at the 1.55 μm telecommunication wavelength. A Q-switched laser with pulse energy up to 25.2 nJ and pulse duration down to 1.65 μs is obtained at a low pump power of 71.7 mW. Our results can boost further research and scalable photonic applications, where environmentally stable few-layer BP based devices are needed.
AB - Recently, the re-discovered black phosphorus (BP) has been extensively investigated for both electronic and photonic applications. However, the intrinsic instability of BP caused by moisture or oxygen reaction in ambient atmosphere has overshadowed its practical applications. Here, we present a liquid phase exfoliation-based approach for the production of few-layer BP (FL-BP) and the subsequent mixing with polycarbonate (PC) for the fabrication of a composite, which significantly reduces BP degradation by PC passivation. Experimentally, the functionalized PC few-layer BP (PC/FL-BP) composite shows environmental stability if compared with mechanically exfoliated BP flakes. We then use the PC/FL-BP composite as saturable absorber to study the nonlinear absorption property in a fibre laser at the 1.55 μm telecommunication wavelength. A Q-switched laser with pulse energy up to 25.2 nJ and pulse duration down to 1.65 μs is obtained at a low pump power of 71.7 mW. Our results can boost further research and scalable photonic applications, where environmentally stable few-layer BP based devices are needed.
KW - Few-layer black phosphorus
KW - Fibre laser
KW - Liquid phase exfoliation
KW - Passive Q-switching
KW - Polycarbonate-black phosphorus composite
KW - Saturable absorber
UR - http://www.scopus.com/inward/record.url?scp=84971333797&partnerID=8YFLogxK
U2 - 10.1016/j.apmt.2016.05.001
DO - 10.1016/j.apmt.2016.05.001
M3 - Article
AN - SCOPUS:84971333797
SN - 2352-9407
VL - 4
SP - 17
EP - 23
JO - Applied Materials Today
JF - Applied Materials Today
ER -