Selfie

About Me

I’m a researcher in physics and my interest field can be best summarized as exploration of light-matter interaction at the nanoscale. The main research focus areas are development of: photonic structures that confine light and artificially engineered optical materials such as metamaterials, optical micro-cavities and hybrid excitonic materials display optical properties that surpass naturally occurring materials. These focus areas are motivated by the quest to develop next generation computing technologies including those that exploit the quantum property of light, ultrasensitive sensors for chemical and biological detection, and high efficiency energy transfer systems.

Contact Details

Zheng Sun
3941 O'Hara St, 100 Allen Hall
Pittsburgh, PA 15213 US

(917)8538724
sunzhengnanophy@gmail.com

Education

City Univeristy of New York, Graduate School and University Center

PH.D in Physics Advisor: Prof. Vinod Menon Sep 2017

Fudan University

Master Degree in Physics Advisor: Prof. Zhanghai Chen and Prof. Xuechu Shen Jan 2012

Zhejiang Normal University

B.S. Degree in Physics Jun 2008

Work

University of Pittsburgh

Postdoc Fellow Advisor: Prof. David Snoke Nov 2017 - Oct 2020

As a postdoc, I'm working under the supervision of Prof. David Snoke for performing electronic and optical measurements. Also I have been a team leader mentoring three graduate students and one undergraduate student.

Research Interests

  • Excitons in two-dimensional Semiconductors of transition metal dichalchogenides (TMDs)
  • Cavity quantum electrodynamics using inorganic and hybrid microcavities
  • Engineered nonlinear optical materials based on hybrid nanocomposites
  • Optical electro control of the polaritons and related applications
  • Quantum optics using metamaterials
  • Transportation of polaritons in GaAs quantum wells based microcavity

Publications

📚 Google Sholar

  • 1. Zheng Sun, Jonathan Beaumariage, Qingrui Cao, Benjamin Hunt, Kenji Watanabe, Takashi Taniguchi, David W. Snoke, "Observation of the Interlayer Exciton Gases in WSe2-p:WSe2 Heterostructures," ACS Photonics 7 (7), 1622–1627 (2020). (Corresponding author)
  • 2. Z.Sun, J. Beaumariage, Q. Cao, B. Hunt, K. Watanabe, T. Taniguchi, D. W. Snoke, "Toward a room temperature Schafroth superconductor based on charged excitonic complexes," arXiv:2003.05850 (2020). (Corresponding author)
  • 3. D. W. Snoke, Y. Yoon, D. M. Myers, S. Mukherjee, J. Beaumariage, V. Hartwell, M. Steger, E. Estrecho, Z. Sun, E.A. Ostrovskaya, and K.A. Nelson, "Experimental determinations of polariton-polariton interactions in microcavities," Under preparation (2020).
  • 4. Zheng Sun, Jonathan Beaumariage, Ke Xu, Jierui Liang, Shaocong Hou, Stephen R. Forrest, Susan K Fullerton-Shirey, David W. Snoke, "Electric-field-induced optical hysteresis in single-layer WSe2," Appl. Phys. Lett. 7 (7), 115, 161103 (2019).(Corresponding author)
  • 5. S Mukherjee, DM Myers, RG Lena, B Ozden, J Beaumariage, Z.Sun, M Steger, LN Pfeiffer, K West, AJ Daley, DW Snoke, “Natural Oscillations of a Polariton Condensate in a Ring,” Phys. Rev. B 100 (24) 245304 (2019)
  • 6. Zheng Sun, David W Snoke, “Optical switching with organics,”, [Invited] Nat. Photonics, [News and Views], 13, 370-371 (2019).(Corresponding author)
  • 7. Zheng Sun, Jonathan Beaumariage, Hema C P Movva, Sayema Chowdhury, Anupam Roy, Sanjay K Banerjee, David W Snoke, “Stress-induced bandgap renormalization in atomic crystals,” Solid State Communications 288, 18-21 (2019). (Corresponding author)
  • 8. Biswanath Chakraborty, Jie Gu, Zheng Sun, Mandeep Khatoniar, Rezlind Bushati, Alexandra L Boehmke, Rian Koots, Vinod M Menon, “Control of Strong Light-matter Interaction in Monolayer WS2 Through Electric Field Gating,” Nano Lett. 18 (10), 6455-6460 (2018).
  • 9. Zheng Sun, Jie Gu, Areg Ghazryan, Zav Shotan, Christopher R. Considine, Michael Dollar, Biswanath Chakraborty, Xiaoze Liu, Pouyan Ghaemi, S. Kéna-Cohen, Vinod M. Menon, “Optical Control of Room Temperature Valley Polaritons,” Nat. Photonics 11, 491-496 (2017).
  • 10. T Galfsky, Zheng Sun, CR Considinel, CT Chou, WC Ko, YH Lee, E Narimanov, “Broadband enhancement of light-matter interaction in 2D semiconductors by photonic hypercrystals,” Nano Lett. 16 (8), 4940-4945 (2016). (Co-first author)
  • 11. T. Galfsky, Z.Sun, Z. Jacob, V. M. Menon, “Preferential emission into epsilon-near-zero metamaterial ,” [Invited], Opt. Mater.Express 5 (12), 2878-2883 (2015).
  • 12. X. Liu, T. Galfsky, Z.Sun, F. Xia, E. Lin, Y.-H. Lee, S. Kéna-Cohen, and V. M. Menon,"Strong light–matter coupling in two-dimensional atomic crystals," Nat. Photonics 9, 30–34 (2014).
  • 13. Zheng Sun, LinHong Yang, XueChu Shen, ZhangHai Chen, "Anisotropic Raman spectroscopy of a single β-Ga2O3 nanobelt," Science Bulletin, 57 (6) (2012). (Cover Story)
  • 14. Qijun Ren, Jian Lu, H H Tan, Shan Wu, Liaoxin Sun, Weihang Zhou, Wei Xie, Zheng Sun, Yongyuan Zhu, C Jagadish, S C Shen, Zhanghai Chen, "Spin-Resolved Purcell Effect in a Quantum Dot Microcavity System," Nano Lett. 12 (7), 3455-3459 (2012).
  • 15. Lin-Hong Yang, Hong-Xing Dong, Zheng Sun, Liao-Xin Sun, Xue-Chu Shen, Zhang-Hai Chen: Temperature-Induced Phase Transition of In2O3 from a Rhombohedral Structure to a Body-Centered Cubic Structure. Chinese Physics Letters, 28 (8) (2011).
  • 16. Zheng Sun, Yuan-Ping Xu, Sheng Li, Thomas F George, "Forbidden Singlet Exciton Transitions Induced by Localization in Polymer Light-Emitting Diodes in a Strong Electric Field," Journal of Physical Chemistry B, 115 (5), 869-873 (2011).

Oral Talk

  • 1. American Physical Society (APS) March Meeting, Denver, CO, USA, Mar 2-6, 2020
  • 2. Fudan- Guanghua International Forum for Young Scholars [Invited], Shanghai, China, Dec 25-27, 2019
  • 3. 9th International Conference On Spontaneous Coherence in Excitonics Systems (ICSCE9), Montréal, Canada, Jul 16-20, 2018
  • 4. East China Normal University (ECNU) International Forum for Young Scientists (Scholars) [Invited], Shanghai, China, Apr 26-28, 2018
  • 5. Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science (CLEO/QELS), San Jose, CA,USA, May 14-19, 2017
  • 6. Emerging Researchers National **(ERN)** in STEM, Washington DC, USA, Mar 2-4, 2017
  • 7. American Physical Society (APS) March Meeting, New Orleans, LA, USA, Mar 13-17, 2017
  • 8. Material Research Science and Engineering Centers (MRSEC), New York, NY, USA Nov 17, 2016
  • 9. Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science (CLEO/QELS), San Jose, CA, USA, Jun 6-9, 2016
  • 10. Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science (CLEO/QELS), San Jose, CA, USA Jun 6-9, 2016
  • 11. Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science (CLEO/QELS), San Jose, CA, USA, Jun 10-14, 2015

Medium Coverage

Service

🎓 Publons

I'm serving as a reviewer for the following journals:

  • Nature
  • Nature Photonics
  • Physical Review Letter
  • Physical Review X
  • Physical Review B
  • Physical Review Materials
  • Nano Letters
  • Optica
  • Scientific Report
  • Optics Letters
  • Optical Express
  • Physica Scripta
  • Solid State Communications
  • Semiconductor Science and Technology
  • Materials Research Express

what is polariton:

2D mateirals beyond graphene: