Fengnian Xia

Assistant Professor of Electrical Engineering
Room / Office: Becton 519
Office Address:
15 Prospect Street
New Haven, CT 06511
Mailing Address:
P.O. Box 208284
New Haven, CT 06520
Phone: (203) 432-7271
Email: fengnian.xia@yale.edu
Degrees:
  • Ph.D., Princeton University
  • B.S., Tsinghua University, China

Interests:

Science and technology of two-dimensional materials for electronic, photonic, and energy related applications; carrier transport and light-matter interaction in reduced dimensional systems; silicon nanophotonics especially resonantly enhanced silicon nanostructures; integration of emerging low dimensional and conventional material systems.

Selected Awards & Honors:

  • 2005-2013: Invention Achievement Awards (5 times), IBM Corporation 
  • 2012: IBM Corporate Award 
  • 2012: IBM Research Division Award 
  • 2011: MIT Technology Review TR35 Award 
  • 2009: IBM Research Division Award 
  • 2008: IBM Research Division Award 
  • 1998: Graduation with highest honor, Tsinghua University, China

Selected Publications:

  • M. Freitag, T. Low, W. Zhu, H. Yan, F. Xia, and P. Avouris, "Photocurrent in graphene harnessed by tunable intrinsic plasmons," Nature Communications 4, 1951 (2013). 
  • H. Yan, T. Low, W. Zhu, Y. Wu, M. Freitag, X. Li, F. Guinea, P. Avouris, and F. Xia, "Damping pathways of mid-infrared plasmons in graphene nanostructures," Nature Photonics 7, 394-399 (2013). 
  • M. Freitag, T. Low, F. Xia, and P. Avouris, "Photoconductivity of biased graphene," Nature Photonics 7, 53-59 (2013). 
  • (Invited) F. Xia, H. Yan, and P. Avouris, "The interaction of light and graphene: basics, devices, and applications," Proceedings of the IEEE 101, 1717-1731 (2013). 
  • (Invited) Y. Wu, D. Farmer, F. Xia, and P. Avouris, "Graphene electronics: materials, devices, and circuits," Proceedings of the IEEE 101, 1620-1637 (2013). 
  • (Invited) P. Avouris and F. Xia, "Graphene applications in electronics and photonics," MRS Bulletin 37, 1225-1234 (2012). 
  • H. Yan, X. Li, B. Chandra, G. Tulevski, Y. Wu, M. Freitag, W. Zhu, P. Avouris, and F. Xia, "Tunable infrared plasmonic devices using graphene/insulator stacks," Nature Nanotechnology 7, 330-334 (2012). 
  • F. Xia, V. Perebeinos, Y. Lin, Y. Wu, and P. Avouris, "The origins and limits of metal-graphene junction resistance," Nature Nanotechnology 6, 179-184 (2011). 
  • Y. Wu, Y. Lin, A. Bol, K. Jenkins, F. Xia, D, Farmer, Y. Zhu, and P. Avouris, "High-frequency, scaled graphene transistors on diamond-like carbon," Nature 472, 74-78 (2011). 
  • T. Mueller, F. Xia, and P. Avouris, "Graphene photodetectors for high-speed optical communications," Nature Photonics 4, 297-301 (2010). 
  • S. Assefa, F. Xia, and Y. Vlasov, "Reinventing Germanium avalanche photodetector for on-chip optical interconnects," Nature 464, 80-84 (2010). 
  • F. Xia, D. Farmer, Y. Lin, and P. Avouris, "Graphene field-effect-transistors with high on/off current ratio and large transport bandgap at room temperature," Nano Letters 10, 715-718 (2010). 
  • F. Xia, T. Muller, Y. Lin, A. Valdes-Garcia, and P. Avouris, "Ultrafast graphene photodetector," Nature Nanotechnology 4, 839-843 (2009). 
  • F. Xia, M. Steiner, Y. Lin, and P. Avouris, "A microcavity-controlled, current-drive, on-chip nanotube emitter at infrared wavelengths," Nature Nanotechnology 3, 609-613 (2008). 
  • Y. Vlasov, W. Green, and F. Xia, "High-throughput silicon nanophotonic wavelength-insensitive switch for on-chip optical networks," Nature Photonics 2, 242-246 (2008). 
  • (Cover story) F. Xia, L. Sekaric, and Y. Vlasov, "Ultra-compact optical buffers on a silicon chip," Nature Photonics 1, 65-71 (2007). 
  • F. Xia, M. Rooks, L. Sekaric, and Y. Vlasov, "Ultra-compact high order ring resonator filters using submicron silicon photonic wires for on-chip optical interconnects," Optics Express 15, 11934-11941 (2007). 
  • E. Dulkeith, F. Xia, L. Schares, W. M. Green, and Y. Vlasov, "Group index and group velocity dispersion in silicon-on-insulator photonic wires," Optics Express 14, 3853-3863 (2006). 
  • F. Xia, L. Sekaric, and Y. Vlasov, "Mode conversion losses in silicon-on-insulator photonic wire based racetrack resonators," Optics Express 14, 3872-3886 (2006). 
  • F. Xia, V. Menon, and S. Forrest, "Photonic integration using asymmetric twin-waveguide (ATG) technology (I): concepts and theory," IEEE Journal of Selected Topics in Quantum Electronics 11, 17-29 (2005). 
  • V. Menon, F. Xia, and S. Forrest, "Photonic integration using asymmetric twin-waveguide (ATG) technology (II): devices," IEEE Journal of Selected Topics in Quantum Electronics 11, 30-42 (2005). 
  • F. Xia, J. K. Thomson, M. R. Gokhale, P. Studenkov, J. Wei, W. Lin, and S. Forrest, "An asymmetric twin-waveguide high-bandwidth photodiode using a lateral taper coupler," IEEE Photonics Technology Letters 13, 845-847 (2001).

Selected Patents:

  • 8,395,103: Avalanche impact ionization amplification devices 
  • 8,378,465: Method and apparatus for optical modulation 
  • 8,232,516: Avalanche impact ionization amplification devices 
  • 8,139,904: Method and apparatus for implementing optical deflection switching using coupled resonators 
  • 8,053,782: Single and few-layer graphene based photodetecting devices 
  • 7,999,344: Optoelectronic device with germanium photodetector 
  • 7,880,201: Optical modulator using a serpentine dielectric layer between silicon layers 
  • 7,790,495: Optoelectronic device with germanium photodetector 
  • 7,684,666: Method and apparatus for tuning an optical delay line 
  • 7,515,793: Waveguide photodetector 
  • 7,373,048: Polarization insensitive semiconductor optical amplifier 
  • 7,333,689: Photonic integrated devices having reduced absorption loss 
  • 6,795,622: Photonic integrated circuits