Zongfu Yu

Assistant Professor

Room: 3535 Engineering Hall
1415 Engineering Drive
Madison, WI 53706

Ph: (608) 263-1643
zyu54@wisc.edu

Primary Affiliation:
Electrical and Computer Engineering

Additional Affiliations:
Materials Science Program,


Research Interests

Optics at small scale. Optical technologies for energy conversion, imaging/sensing, communication.

1.Photon management for energy conversion: primary interest is to study new mechanisms to improve energy conversion efficiency.

2.Semiconductor photonics: the integration of nanophotonics with semiconductors for advanced optoelectronic devices, specifically angular detectors for 3D light field sensing, and advanced single photon detectors. 

3.Near and far field thermal radiation: using thermal extraction for effective radiative cooling and also study fundamental physics of thermal radiation from nano structures and nano materials. 

4. Nonreciprocal photonics and optical isolators: new physics in nonreciprocal nanophotonics and its applications.

 

Selected Publications:

Zongfu Yu, Nicholas Sergeant, Torbjorn Skauli, Gang Zhang, Hailiang Wang, and Shanhui Fan "Thermal Extraction: enhancing thermal emission of a macroscopic blackbody to far-field vacuum ", Nature Communication 4, 1730 (2013).

Hui Wu, Desheng Kong, Zhichao Ruan, Po-Chun Hsu, Shuang Wang, Zongfu Yu, Thomas J Carney, Liangbing Hu, Shanhui Fan, Yi Cui "A transparent electrode based on nanotrough network", Nature Nanotechnology 8, 421 (2013).

Dirk Jalas, Alexander Petrov, Manfred Eich, Wolfgand Fredue, Shanhui Fan, Zongfu Yu, Roel Baets, Milos Popovic, Andrea Melloni, John D. Joannopoulos, Mathias Vanwolleghem, Christopher R. Doerr, and Hagen Renner, "What is and what is not an optical isolator", Nature Photonics, 7, 579 (2013)

Kevin A. Arpin, Mark D. Losego, Andrew N. Cloud, Hailong Ning, Justin Mallek, Nicholas P. Sergeant, Linxiao Zhu, Zongfu Yu, Berç Kalanyan, Gregory N. Parsons, Gregory S. Girolami, John R. Abelson, Shanhui Fan, and Paul V. Braun.  "Three-Dimensional Self-Assembled Photonic Crystals with High Temperature Stability for Thermal Emission Modification"  Nature Communications (2013)

Zongfu Yu, A. Raman, S. Fan "Thermodynamic upper bound on broadband light coupling with photonic structures" Physical Review Letters, 109,173901 (2012)

Kejie Fang, Zongfu Yu, and Shanhui Fan " Realizing effective magnetic field for photons by controlling the phase of dynamic modulation" Nature Photonics DOI:10.1038/nphoton.2012.236 (2012).

H. Lira, Zongfu Yu, S. Fan and M. Lipson "Electro-optical silicon isolator" Physical Review Letters, 109, 033901 (2012).

K. Fang, Zongfu Yu, S. Fan " Photonic Aharonov-Bohm effect based on dynamic modulation" Physical Review Letters, 108,153901 (2012).

L. Verslegers, Zongfu Yu, Z. Ruan, P. Catrysse, S. Fan " From Electromagnetically Induced Transparency to Superscattering with a Single Structure: A Coupled-Mode Theory for Doubly Resonant Structures", Physical Review Letters, 108, 083902 (2012).

S. Fan, R. Baets, A. Petrov, Zongfu Yu, J. D. Joannopoulos, W. Freude, A. Melloni, M. Popvic, M. Vanwolleghem, D. Jalas, M. Eich, M. Krause, H. Renner, E. Brinkmeyer, C. R. Doerr " Comment on 'Nonreciprocal Light Propagation in a Silicon Photonic Circuit" Science, 335, 38, (2012) Technical Comments

Zongfu Yu, and Shanhui Fan " Angular constraint on light-trapping absorption enhancement in solar cells" Applied Physics Letters 98, 011106 (2011).

Zongfu Yu, and Shanhui Fan "Extraordinarily high spectral sensitivity in refractive index sensors using multiple optical modes" Optics Express, 19 10029 (2011). 

Zongfu Yu, Aaswath Raman, and Shanhui Fan " Fundamental limit of nanophotonic light trapping in solar cells" PNAS 107(41) 17491-17496 (2010).

Zongfu Yu, and Shanhui Fan “ Complete Optical Isolation created by indirect interband photonic transitions” Nature Photonics, 3, 91 (2009).

A. Kinkhabwala, Zongfu Yu, S. Fan, Y. Avlasevich, K. Mullen, and W.E. Moerner “Single-molecule fluorescence enhancements produced by a Bowtie nanoantenna” Nature Photonics, 3, 654, (2009).

Jia Zhu, Zongfu Yu, George F. Burkhard, Ching-Mei Hsu, Stephen T. Connor, Yueqin Xu, Qi Wang, Michael McGehee, Shanhui Fan and Yi Cui “ Optical Absorption Enhancement in Amorphous Silicon Nanowire Arrays ” Nano Letters 9 (1), pp 279–282 (2009).

Zongfu Yu, G. Veronis, Z. Wang and S. Fan “One-way electromagnetic waveguide formed at the interface between a plasmonic metal under static magnetic field and a photonic crystal”, Physical Review Letters, 100, 23902 (2008).

Zongfu Yu, G. Veronis, M. L. Brongersma, and S. Fan “Gain-induced switching in metal-dielectric-metal plasmonic waveguide” Applied Physics Letters 92, 041117 (2008).

Zongfu Yu, Z. Wang and S. Fan “One-way total reflection with one-dimensional magneto-optical photonic crystals” Applied Physics Letters 90, 121133 (2007).

Zongfu Yu, G. Veronis, M. L. Brongersma, and S. Fan “Design of mid-infrared photodetectors enhanced by surface plasmons on grating structures” Applied Physics Letters 89, 151116 (2006).

 

Education

Postdoc & Research Associate 2009-2013, Stanford University, Electrical Engineering

PhD 2009, Stanford University, Applied Physics

MS 2008, Stanford University, Management Science and Engineering

BS 2004, University of Science and Technology of China, Physics

 

Research Interests

Optics at small scale. Optical technologies for energy conversion, imaging/sensing, communication.

1.Photon management for energy conversion: primary interest is to study new mechanisms to improve energy conversion efficiency.

2.Semiconductor photonics: the integration of nanophotonics with semiconductors for advanced optoelectronic devices, specifically angular detectors for 3D light field sensing, and advanced single photon detectors. 

3.Near and far field thermal radiation: using thermal extraction for effective radiative cooling and also study fundamental physics of thermal radiation from nano structures and nano materials. 

4. Nonreciprocal photonics and optical isolators: new physics in nonreciprocal nanophotonics and its applications.

 

Selected Publications:

Zongfu Yu, Nicholas Sergeant, Torbjorn Skauli, Gang Zhang, Hailiang Wang, and Shanhui Fan \"Thermal Extraction: enhancing thermal emission of a macroscopic blackbody to far-field vacuum \", Nature Communication 4, 1730 (2013).

Hui Wu, Desheng Kong, Zhichao Ruan, Po-Chun Hsu, Shuang Wang, Zongfu Yu, Thomas J Carney, Liangbing Hu, Shanhui Fan, Yi Cui \"A transparent electrode based on nanotrough network\", Nature Nanotechnology 8, 421 (2013).

Dirk Jalas, Alexander Petrov, Manfred Eich, Wolfgand Fredue, Shanhui Fan, Zongfu Yu, Roel Baets, Milos Popovic, Andrea Melloni, John D. Joannopoulos, Mathias Vanwolleghem, Christopher R. Doerr, and Hagen Renner, \"What is and what is not an optical isolator\", Nature Photonics, 7, 579 (2013)

Kevin A. Arpin, Mark D. Losego, Andrew N. Cloud, Hailong Ning, Justin Mallek, Nicholas P. Sergeant, Linxiao Zhu, Zongfu Yu, Berç Kalanyan, Gregory N. Parsons, Gregory S. Girolami, John R. Abelson, Shanhui Fan, and Paul V. Braun.  \"Three-Dimensional Self-Assembled Photonic Crystals with High Temperature Stability for Thermal Emission Modification\"  Nature Communications (2013)

Zongfu Yu, A. Raman, S. Fan \"Thermodynamic upper bound on broadband light coupling with photonic structures\" Physical Review Letters, 109,173901 (2012)

Kejie Fang, Zongfu Yu, and Shanhui Fan \" Realizing effective magnetic field for photons by controlling the phase of dynamic modulation\" Nature Photonics DOI:10.1038/nphoton.2012.236 (2012).

H. Lira, Zongfu Yu, S. Fan and M. Lipson \"Electro-optical silicon isolator\" Physical Review Letters, 109, 033901 (2012).

K. Fang, Zongfu Yu, S. Fan \" Photonic Aharonov-Bohm effect based on dynamic modulation\" Physical Review Letters, 108,153901 (2012).

L. Verslegers, Zongfu Yu, Z. Ruan, P. Catrysse, S. Fan \" From Electromagnetically Induced Transparency to Superscattering with a Single Structure: A Coupled-Mode Theory for Doubly Resonant Structures\", Physical Review Letters, 108, 083902 (2012).

S. Fan, R. Baets, A. Petrov, Zongfu Yu, J. D. Joannopoulos, W. Freude, A. Melloni, M. Popvic, M. Vanwolleghem, D. Jalas, M. Eich, M. Krause, H. Renner, E. Brinkmeyer, C. R. Doerr \" Comment on \'Nonreciprocal Light Propagation in a Silicon Photonic Circuit\" Science, 335, 38, (2012) Technical Comments

Zongfu Yu, and Shanhui Fan \" Angular constraint on light-trapping absorption enhancement in solar cells\" Applied Physics Letters 98, 011106 (2011).

Zongfu Yu, and Shanhui Fan \"Extraordinarily high spectral sensitivity in refractive index sensors using multiple optical modes\" Optics Express, 19 10029 (2011). 

Zongfu Yu, Aaswath Raman, and Shanhui Fan \" Fundamental limit of nanophotonic light trapping in solar cells\" PNAS 107(41) 17491-17496 (2010).

Zongfu Yu, and Shanhui Fan “ Complete Optical Isolation created by indirect interband photonic transitions” Nature Photonics, 3, 91 (2009).

A. Kinkhabwala, Zongfu Yu, S. Fan, Y. Avlasevich, K. Mullen, and W.E. Moerner “Single-molecule fluorescence enhancements produced by a Bowtie nanoantenna” Nature Photonics, 3, 654, (2009).

Jia Zhu, Zongfu Yu, George F. Burkhard, Ching-Mei Hsu, Stephen T. Connor, Yueqin Xu, Qi Wang, Michael McGehee, Shanhui Fan and Yi Cui “ Optical Absorption Enhancement in Amorphous Silicon Nanowire Arrays ” Nano Letters 9 (1), pp 279–282 (2009).

Zongfu Yu, G. Veronis, Z. Wang and S. Fan “One-way electromagnetic waveguide formed at the interface between a plasmonic metal under static magnetic field and a photonic crystal”, Physical Review Letters, 100, 23902 (2008).

Zongfu Yu, G. Veronis, M. L. Brongersma, and S. Fan “Gain-induced switching in metal-dielectric-metal plasmonic waveguide” Applied Physics Letters 92, 041117 (2008).

Zongfu Yu, Z. Wang and S. Fan “One-way total reflection with one-dimensional magneto-optical photonic crystals” Applied Physics Letters 90, 121133 (2007).

Zongfu Yu, G. Veronis, M. L. Brongersma, and S. Fan “Design of mid-infrared photodetectors enhanced by surface plasmons on grating structures” Applied Physics Letters 89, 151116 (2006).

 

Publications

Selected Publications:

Zongfu Yu, Nicholas Sergeant, Torbjorn Skauli, Gang Zhang, Hailiang Wang, and Shanhui Fan \"Thermal Extraction: enhancing thermal emission of a macroscopic blackbody to far-field vacuum \", Nature Communication 4, 1730 (2013).

Hui Wu, Desheng Kong, Zhichao Ruan, Po-Chun Hsu, Shuang Wang, Zongfu Yu, Thomas J Carney, Liangbing Hu, Shanhui Fan, Yi Cui \"A transparent electrode based on nanotrough network\", Nature Nanotechnology 8, 421 (2013).

Dirk Jalas, Alexander Petrov, Manfred Eich, Wolfgand Fredue, Shanhui Fan, Zongfu Yu, Roel Baets, Milos Popovic, Andrea Melloni, John D. Joannopoulos, Mathias Vanwolleghem, Christopher R. Doerr, and Hagen Renner, \"What is and what is not an optical isolator\", Nature Photonics, 7, 579 (2013)

Kevin A. Arpin, Mark D. Losego, Andrew N. Cloud, Hailong Ning, Justin Mallek, Nicholas P. Sergeant, Linxiao Zhu, Zongfu Yu, Berç Kalanyan, Gregory N. Parsons, Gregory S. Girolami, John R. Abelson, Shanhui Fan, and Paul V. Braun.  \"Three-Dimensional Self-Assembled Photonic Crystals with High Temperature Stability for Thermal Emission Modification\"  Nature Communications (2013)

Zongfu Yu, A. Raman, S. Fan \"Thermodynamic upper bound on broadband light coupling with photonic structures\" Physical Review Letters, 109,173901 (2012)

Kejie Fang, Zongfu Yu, and Shanhui Fan \" Realizing effective magnetic field for photons by controlling the phase of dynamic modulation\" Nature Photonics DOI:10.1038/nphoton.2012.236 (2012).

H. Lira, Zongfu Yu, S. Fan and M. Lipson \"Electro-optical silicon isolator\" Physical Review Letters, 109, 033901 (2012).

K. Fang, Zongfu Yu, S. Fan \" Photonic Aharonov-Bohm effect based on dynamic modulation\" Physical Review Letters, 108,153901 (2012).

L. Verslegers, Zongfu Yu, Z. Ruan, P. Catrysse, S. Fan \" From Electromagnetically Induced Transparency to Superscattering with a Single Structure: A Coupled-Mode Theory for Doubly Resonant Structures\", Physical Review Letters, 108, 083902 (2012).

S. Fan, R. Baets, A. Petrov, Zongfu Yu, J. D. Joannopoulos, W. Freude, A. Melloni, M. Popvic, M. Vanwolleghem, D. Jalas, M. Eich, M. Krause, H. Renner, E. Brinkmeyer, C. R. Doerr \" Comment on \'Nonreciprocal Light Propagation in a Silicon Photonic Circuit\" Science, 335, 38, (2012) Technical Comments

Zongfu Yu, and Shanhui Fan \" Angular constraint on light-trapping absorption enhancement in solar cells\" Applied Physics Letters 98, 011106 (2011).

Zongfu Yu, and Shanhui Fan \"Extraordinarily high spectral sensitivity in refractive index sensors using multiple optical modes\" Optics Express, 19 10029 (2011).

Zongfu Yu, Aaswath Raman, and Shanhui Fan \" Fundamental limit of nanophotonic light trapping in solar cells\" PNAS 107(41) 17491-17496 (2010).

Zongfu Yu, and Shanhui Fan “ Complete Optical Isolation created by indirect interband photonic transitions” Nature Photonics, 3, 91 (2009).

A. Kinkhabwala, Zongfu Yu, S. Fan, Y. Avlasevich, K. Mullen, and W.E. Moerner “Single-molecule fluorescence enhancements produced by a Bowtie nanoantenna” Nature Photonics, 3, 654, (2009).

Jia Zhu, Zongfu Yu, George F. Burkhard, Ching-Mei Hsu, Stephen T. Connor, Yueqin Xu, Qi Wang, Michael McGehee, Shanhui Fan and Yi Cui “ Optical Absorption Enhancement in Amorphous Silicon Nanowire Arrays ” Nano Letters 9 (1), pp 279–282 (2009).

Zongfu Yu, G. Veronis, Z. Wang and S. Fan “One-way electromagnetic waveguide formed at the interface between a plasmonic metal under static magnetic field and a photonic crystal”, Physical Review Letters, 100, 23902 (2008).

Zongfu Yu, G. Veronis, M. L. Brongersma, and S. Fan “Gain-induced switching in metal-dielectric-metal plasmonic waveguide” Applied Physics Letters 92, 041117 (2008).

Zongfu Yu, Z. Wang and S. Fan “One-way total reflection with one-dimensional magneto-optical photonic crystals” Applied Physics Letters 90, 121133 (2007).

Zongfu Yu, G. Veronis, M. L. Brongersma, and S. Fan “Design of mid-infrared photodetectors enhanced by surface plasmons on grating structures” Applied Physics Letters 89, 151116 (2006).

Courses

Fall 2014-2015

  • ECE 890 - Pre-Dissertator\'s Research

  • ECE 999 - Advanced Independent Study
  • ECE 601 - Special Topics in Electrical and Computer Engineering

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