Welcome

Our current research interests include:

• Micro- and nano-scale lasers
• Novel light sources
• Spintronic THz sources
• Topology in Hyperbolic and non-Hermitian Metamaterials
• Photonic Neuromorphic Computing
• Quantum photonics
• Chip-scale neutral atom cooling and trapping

Selected publications:

E. Karooby, J. Li, A. Agrawal, Q. Gu, “High-efficiency 2D grating design for the magneto-optical trap: enhancing intensity balance and reducing optical complexity,” Opt. Eng. 64(8), 085106 (2025)

A. Gharajeh, K. Goudarzi, Q. Gu “Single-Defect Mode Lasing in a Non-Hermitian 1D Trivial SSH Lattice“, ACS Photonics, 12, 2, 576–580 (2025)

W. Wang, J. Kokinda, J. Li, Q. Gu, D. Liu, J. Wen “Dual opposing quadrature-PT symmetry“, iScience, 28, 1, 111655 (2025)

S. Behroozinia and Q.Gu “Leveraging multiplexed metasurfaces for multi-task learning with all-optical diffractive processors“, Nanophotonics, 13, 24, 4505-4517 (2024)

X. Li, J. Li, J. Moon, R, Wilmington, K. Gundogdu, Q. Gu “Experimental Observation of Purcell-Enhanced Spontaneous Emission in a Single-Mode Plasmonic Nanocavity,” ACS Photonics 11, 8, 3375–3380 (2024)

Z. Li, X.W. Luo, D. Lin, A. Gharajeh, J. Moon, J. Hou, C. Zhang, Q. Gu “Topological Microlaser with A non-Hermitian Topological Bulk,” Phys. Rev. Lett. 131, 023202 (2023)

Book: Q. Gu and Y. Fainman, “Semiconductor Nanolasers”, Cambridge University Press (2017) (Official page, Google Books, Amazon).
Review on OSA Optics & Photonics News