Graphene-doped polymer nanofibers for low-threshold nonlinear optical waveguiding

Chao Meng; Shao-Liang Yu; Hong-Qing Wang; Yue Cao; Li-Min Tong; Wei-Tao Liu; Yuen-Ron Shen

doi:10.1038/lsa.2015.121

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Graphene-doped polymer nanofibers for low-threshold nonlinear optical waveguiding

Original Articles

- Graphene-doped polymer nanofibers for low-threshold nonlinear optical waveguiding
- Light: Science & Applications Vol. 4, Issue 4, (2015)
- Affiliations：
  
  1.State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
  2.Department of Physics, State Key Laboratory of Surface Physics, Laboratory of Advanced Materials and Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Fudan University, Shanghai 200433, China
  3.Department of Physics, University of California, Berkeley, CA 94720, USA
- Author bio：
  
  LM Tong, Email: phytong@zju.edu.cn
  WT Liu, Email: wtliu@fudan.edu.cn
- Funds：
- DOI：10.1038/lsa.2015.121
  CLC：
- Published：2015-12，
  
  Published Online：29 June 2015，
  
  Received：12 February 2015，
  
  Revised：21 June 2015，
  
  Accepted：22 June 2015
- Accepted：
Scan QR Code
Meng, C. et al. Graphene-doped polymer nanofibers for low-threshold nonlinear optical waveguiding. Light: Science & Applications, 4, e348 (2015).
DOI：

Meng, C. et al. Graphene-doped polymer nanofibers for low-threshold nonlinear optical waveguiding. Light: Science & Applications, 4, e348 (2015). DOI： 10.1038/lsa.2015.121.

摘要

Abstract

Graphene-doped polymer nanofibers are fabricated by taper drawing of solvated polyvinyl alcohol doped with liquid-phase exfoliated graphene flakes. Nanofibers drawn this way typically have diameters measured in hundreds of nanometers and lengths in tens of millimeters; they show excellent uniformity and surface smoothness for optical waveguiding. Owing to their tightly confined waveguiding behavior

light–matter interaction in these subwavelength-diameter nanofibers is significantly enhanced. Using approximately 1350-nm-wavelength femto-second pulses

we demonstrate saturable absorption behavior in these nanofibers with a saturation threshold down to 0.25 pJ pulse

−1

(peak power ~1.3 W). Additionally

using 1064-nm-wavelength nanosecond pulses as switching light

we show all-optical modulation of a 1550-nm-wavele

ngth signal light guided along a single nanofiber with a switching peak power of ~3.2 W.

关键词

Keywords

graphenenanofiberoptical modulationsaturable absorption

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