- Assistant Professor, Photonics Initiative
- Assistant Professor of Physics, CUNY Graduate Center
The Guo group seeks to uncover new physical principles underlying the interaction between light and emerging active photonic materials, and to harness the resulting unprecedented optoelectronic properties in a scalable way to tackle the grand challenges in classical and quantum information processing, optical computing and mid-infrared sensing. Our future research directions include:
- Integrated ultrafast light sources and novel architectures for unconventional photonic computing;
- Next-generation thermal vision technologies and
- Quantum interactions between light and emerging materials.
Prior to joining the ASRC and the CUNY Graduate Center, Qiushi was a postdoctoral research associate at the California Institute of Technology. He received his Ph.D. in Electrical Engineering from Yale University in 2019. He received his M.S. degree in Electrical Engineering from the University of Pennsylvania in 2014, and his B.S. degree in Electrical Engineering from Xi’an Jiaotong University in 2012. His research interests include integrated ultrafast and quantum photonics, mid-infrared photonics, and optoelectronics in emerging quantum materials. He has published more than 40 peer-reviewed research papers in leading scientific journals and holds 2 US patents. He is serving on the editorial board of the journal Micromachines.
Postdoc and Ph.D. positions are available. Please contact Professor Guo by email for more information.
Awards and Honors
2023: PSC-CUNY Enhancement Award
2022: Rising Stars of Light
2020: Henry Prentiss Becton Prize for exceptional research achievement, Yale University
Q. Guo, B. K. Gutierrez, R. Sekine, R. M. Gray, J. A. Williams, L. Ledezma, L. Costa, A. Roy, S. Zhou, M. Liu, and A. Marandi. Ultrafast mode-locked laser in nanophotonic lithium niobate. Science 382 708-713 (2023) (cover story).
R. Nehra*, R. Sekine*, L. Ledezma, Q. Guo, R. M. Gray, A. Roy, and A. Marandi. Few-cycle vacuum squeezing in nanophotonics. Science 377, 1333-1337 (2022)
Q. Guo*, R. Sekine*, L. Ledezma*, R. Nehra, D. J. Dean, A. Roy, R. M. Gray, S. Jahani, and A. Marandi. Femtojoule femtosecond all-optical switching in lithium niobate nanophotonics. Nature Photonics 16, 625–631 (2022)
Ledezma*, R. Sekine*, Q. Guo*, R. Nehra, S. Jahani, and A. Marandi. Intense optical parametric amplification in dispersion-engineered nanophotonic lithium niobate waveguides. Optica 9, 303-308 (2022)
Q. Guo*, R. Yu*, C. Li, S. Yuan, B. Deng, F. J. García de Abajo, and F. Xia. Efficient electrical detection of mid-infrared graphene plasmons at room temperature. Nature Materials 17, 986-992 (2018)
Yu, Q. Guo, F. Xia, and F. J. García de Abajo. Photothermal engineering of graphene plasmons. Physical Review Letters 121, 057404 (2018)
Q. Guo, C. Li, B. Deng, S. Yuan, F. Guinea, and F. Xia. Infrared nanophotonics based on graphene plasmonics. ACS Photonics 4, 2989-2999 (2017)
Q. Guo, F. Guinea, B. Deng, I. Sarpkaya, C. Li, C. Chen, X. Ling, J. Kong, and F. Xia. Electrothermal control of graphene plasmon–phonon polaritons. Advanced Materials 29, 1700566 (2017)
Q. Guo, A. Pospischil, M. Bhuiyan, H. Jiang, H. Tian, D. Farmer, B. Deng, C. Li, S. J. Han, H. Wang, Q. Xia, T. P. Ma, T. Mueller, and F. Xia. Black phosphorus mid-infrared photodetectors with high gain. Nano Letters 16, 4648-4655 (2016)
H. Tian*, Q. Guo*, Y. Xie, H. Zhao, C. Li, J. J Cha, F. Xia, H. Wang. Anisotropic black phosphorus synaptic device for neuromorphic applications. Advanced Materials 28, 4991–4997 (2016)