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

Journal Article · · Light, Science & Applications
DOI:https://doi.org/10.1038/lsa.2015.121· OSTI ID:1239550
 [1];  [1];  [2];  [2];  [1];  [2];  [3]
  1. Zhejiang Univ., Hangzhou (China)
  2. Fudan Univ., Shanghai (China)
  3. Univ. of California, Berkeley, CA (United States)

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

Research Organization:
Univ. of California, Berkeley, CA (United States). Department of Physics
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC03-76SF00098
OSTI ID:
1239550
Journal Information:
Light, Science & Applications, Vol. 4; ISSN 2047-7538
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

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Cited By (12)

2D Materials for Optical Modulation: Challenges and Opportunities journal February 2017
Polyvinyl alcohol: A review of research status and use of polyvinyl alcohol based nanocomposites journal April 2018
Plasma-induced, nitrogen-doped graphene-based aerogels for high-performance supercapacitors journal March 2016
Technique and model for modifying the saturable absorption (SA) properties of 2D nanofilms by considering interband exciton recombination journal January 2018
Ultrafast, broadband, and configurable midinfrared all-optical switching in nonlinear graphene plasmonic waveguides journal July 2016
Recent advances in microfiber sensors for highly sensitive biochemical detection journal September 2019
Facile synthesis and optical characterization of graphene oxide-doped TiO 2 /polyvinyl alcohol nanocomposites: optical limiting applications journal April 2019
Graphene Q-switched distributed feedback fiber lasers with narrow linewidth approaching the transform limit journal January 2017
Theoretical investigation of optical modulators based on graphene-coated side- polished fiber journal January 2018
All-optical graphene modulator based on optical Kerr phase shift journal January 2016
All-optical modulation with 2D layered materials: status and prospects journal February 2020
Optical Graphene Gas Sensors Based on Microfibers: A Review journal March 2018

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