Publications

Book:

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

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)

2024:

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)
K. Zhao, X. Zhou, X. Li, J. Moon, J. Cassidy, D. Harankahage, Z. Hu, S. M. Savoy, Q. Gu, M. Zamkov, and A. V. Malko “Green Light from Red-Emitting Nanocrystals: Broadband, Low-Threshold Lasing from Colloidal Quantum Shells in Optical Nanocavities“, ACS Nano, 18, 16, 10946–10953 (2024)
X. Li, A. Ghaffari, F. Abbas, and Q. Gu “Plasmon near-field coupling and universal scaling behavior in shifted-core coaxial nano-cavity pair,” Optics Express, 32, 8, 14770–14779 (2024)
[Review] Z. Li and Q. Gu “Topological hyperbolic metamaterials,” Nanophotonics 0, 1–15 (2024)
M. A. Sadath, J. Kokinda, D. Lin, M. S. Hossain, and Q. Gu, “Porous core fiber with hybrid cladding for ultra-flattened dispersion and low loss propagation of terahertz waves,” Results in Optics 15, 100646 (2024)

2023:

[Book Chapter] J. Kokinda, X. Li, Q. Gu “Chapter: On-Chip Nanoscale Light Sources” in Advances in Near-Field Optics, Springer Series in Optical Sciences (SSOS), volume 244 (2023)
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)
[Perspective] Z. Li, X.W. Luo, Q. Gu “Topological on-chip lasers,” APL Photonics, 8, 070901 (2023)
M. Alahbakhshi, A. Mishra, G. Verkhogliadov, E. E. Turner, R. Haroldson, A. C. Adams, Q, Gu, J. J. Rack, J. D. Slinker, A. A. Zakhidov “Highly Efficient Quasi 2D Blue Perovskite Electroluminescence Leveraging a Dual Ligand Composition” Advanced Functional Materials, 2214315 (2023)
[Review] J. Moon, Y. Mehta, K. Gundogdu, F. So, Q. Gu “Metal‐halide Perovskite Lasers: Cavity Formation and Emission Characteristics,” Advanced Materials, 2211284 (2023)

2022:

F. Abbas, T. Daunis, B. J. Pandey, K. Clark, K. Lascola, Y. Dikmelik, D. Robbins, K. L. Hodges, K. Roodenko, Q. Gu, “Near-field thermal profiling and 3D anisotropic thermal analysis of quantum cascade lasers,” physica status solidi (a), 202200453 (2022)
D. Lin, J. Liu, R. Haroldson, J. Moon, Z. Li, W. Hu, A. A. Zakhidov, and Q. Gu, “High-Performance Directly Patterned Nanograting Perovskite Photodetector with Interdigitated Electrodes,” Adv. Optical Mater. 2201516 (2022).
J. Liu, R. Haroldson, G. Verkhogliadov, D. Lin, Q. Gu, A. A. Zakhidov, W. Hu, and C. D. Young, “Ultrasensitive Perovskite Photodetector Achieved When Conﬁgured with a Si Metal Oxide Semiconductor Field-Effect Transistor,” Adv. Photonics Research, 202200034 (2022)
J. Moon, M. Alahbakhshi, A. Gharajeh, Q. Li, Z. Li, R. Haroldson, S. Kwon, R. Hawkins, M. J. Kim, W. Hu, X. Zhang, A. A. Zakhidov, and Q. Gu, “Quasi-CW Lasing from Directly Patterned and Encapsulated Perovskite Cavity at 260 K,” ACS Photonics, 9, 6, 1984 (2022). [Cover Image].

UT Dallas (2016-2021)

2021:

J. Hou, Z. Li, Q. Gu, and C. Zhang, “Topological and hyperbolic dielectric materials from chirality-induced charge-parity symmetry,” Phys. Rev. A 104, 043510 (2021).
[Review] B. Murillo-Borjas, X. Li, Q. Gu, “High-speed nanoLEDs for chip-scale communication,” Nano Communication Networks, 100376 (2021).
Mishra, M. Alahbakhshi, Q. Gu, A. A. Zakhidov, and J. D. Slinker, “Leveraging a Stable Perovskite Composite to Satisfy Blue Electroluminescence Standards,” ACS Materials Lett. 3, 1357 (2021) [Cover Image].
Mishra, M. Alahbakhshi, R. Haroldson, Q. Gu, A. A. Zakhidov, and J. D. Slinker, “Pure Blue Electroluminescence by Differentiated Ion Motion in a Single Layer Perovskite Device,” Advanced Functional Materials, 31, 2102006 (2021) [Cover Image].
J. Moon, K. Sunah, M. Alahbakhshi, Y. Lee, K. Cho, A. A. Zakhidov, M. J. Kim, and Q. Gu, “Surface Energy-driven Preferential Grain Growth of Metal Halide Perovskites: Effects of Nanoimprint Lithography Beyond Direct Patterning,” ACS Appl. Mater. Interfaces, 13, 4, 5368 (2021).
Mishra, S. DiLuzio, M. Alahbakhshi, A. Adams, M. H. Bowler, J. Moon, Q. Gu, A. A. Zakhidov, S. Bernhard, and J. D. Slinker, “Bright Single-Layer Perovskite Host-Ionic Guest Light-Emitting Electrochemical Cells,” ACS Chemistry of Materials, 33, 4, 1201 (2021). [Cover Image].

2020:

S. S. Deka, S. H. Pan, S. Jiang, A. El Amili, F. Vallini, Q. Gu, and Y. Fainman, “Real-time dynamic wavelength tuning and intensity modulation of metal-clad nanolasers,” Opt. Express, 28, 27346 (2020).
Z. Li, J. S.T. Smalley, R. Haroldson, D. Lin, R. Hawkins, A. Gharajeh, J. Moon, J. Hou, C. Zhang, W. Hu, A. Zakhidov, Q. Gu, “Active Perovskite Hyperbolic Metasurface,” ACS Photonics 7, 7, 1754 (2020).
A. Mishra, M. Alahbakhshi, R. Haroldson, L. D. Bastatas, Q. Gu, A. A. Zakhidov, J. D. Slinker, “Enhanced Operational Stability of Perovskite Light-Emitting Electrochemical Cells Leveraging Ionic Additives,” Adv. Optical Mater. 2000226 (2020).
J. Hou, Z. Li, X. W. Luo, Q, Gu and C. Zhang, “Topological Bands and Triply Degenerate Points in Non-Hermitian Hyberbolic Metamaterials,” Phys. Rev. Lett. 124, 073603 (2020).

2019:

M. Alahbakhshi, A. Mishra, R. Haroldson, A. Ishteev, J. Moon, Q. Gu, J. D. Slinker, A. A. Zakhidov, “Bright and Efficient Perovskite Light Emitting Electrochemical Cells Leveraging Ionic Additives,“ACS Energy Lett. 4, 2922-2928 (2019). [Cover Image].
[Review] X. Li and Q. Gu, “High speed on-chip light sources at the nanoscale,” Advances in Physics: X, 4, 1 (2019).
Y. Tiguntseva, Z. Sadrieva, B. V. Stroganov, Y. V. Kapitonov, F. Komissarenko, R. Haroldson, B. Balachandran, W. Hu, Q. Gu, A. A. Zakhidov, A. Bogdanov, and S. V. Makarov, “Enhanced temperature-tunable narrow-band photoluminescence from resonant perovskite nanograting,” Appl. Surf. Sci. 473, 419–424 (2019).

2018:

Z. Li, J. Moon, A. Gharajeh, R. Haroldson, R. Hawkins, W. Hu, A. Zakhidov, and Q. Gu, “Room-temperature continuous-wave operation of organometal halide perovskite lasers,” ACS Nano 12, 11, 10968-10976 (2018).
X. Li, J. S. T. Smalley, Z. Li, and Q. Gu, “Effective modal volume in nanoscale photonic and plasmonic near-infrared resonant cavities,” Appl. Sci. 8, 1464 (2018).
X. Li and Q. Gu, “Ultrafast shifted-core coaxial nano-emitter,” Opt. Express, 26, 15177 (2018).
S. H. Pan, S. S. Deka, A. El Amili, Q. Gu, and Y. Fainman, “Nanolasers: Second-order Intensity Correlation, Direct Modulation and Electromagnetic Isolation in Array Architectures,” Prog. Quantum Electron. (2018).
A. Gharajeh, R. Haroldson, Z. Li, J. Moon, B. Balachandran, W. Hu, A. Zakhidov, and Q. Gu, “Continuous-wave operation in directly patterned perovskite distributed feedback light source at room temperature,” Opt. Lett. 43, 611 (2018).

2017:

H. Wang, S.-C. Liu, B. Balachandran, J. Moon, R. Haroldson, Z. Li, A. Ishteev, Q. Gu, W. Zhou, A. Zakhidov, and W. Hu, “Nanoimprinted perovskite metasurface for enhanced photoluminescence,” Opt. Express 25, A1162 (2017).
S. S. Deka, S. H. Pan, Q. Gu, Y. Fainman, and A. El Amili, “Coupling in a dual metallo-dielectric nanolaser system,” Opt. Lett. 42, 4760 (2017).
A. Kodigala, Q. Gu, T. Lepetit, B. Bahari, B. Kanté, “Mechanically stable conjugate and suspended lasing membranes of bridged nano-cylinders“, Opt. Mater. Express, 7, 2980 (2017).
A. Kodigala*, T. Lepetit*, Q.Gu*, B. Bahari, Y. Fainman, B. Kanté, “Lasing action from photonic bound states in continuum“, Nature, 541, 196-199 (2017). [*equal contribution]

2016:

S. H. Pan, Q. Gu, A. E. Amili, F. Vallini, Y. Fainman, “Dynamic hysteresis in a coherent high-β nanolaser“, Optica, 3, no. 11, 1260-1265 (2016).
J. ST Smalley, F. Vallini, Q. Gu and Y. Fainman, “Amplification and lasing of plasmonic modes” in special issue “Plasmonics: Current Status and Future Perspective“, Proceedings of the IEEE, vol. PP, no. 99, 1-15 (2016).
P. Zhang, Q. Gu, Y.Y. Lau and Y. Fainman, “Constriction resistance and current crowding in electrically pumped semiconductor nanolasers with the presence of undercut and sidewall tilt“, IEEE Journal of Quantum Electronics, 52, no. 3, 1-7 (2016).

Pre-2016

Q. Gu, J. ST Smalley, J. Shane, O. Bondarenko and Y. Fainman, “Temperature effects in metal-clad semiconductor nanolasers“, Nanophotonics Journal, vol. 4, issue 1, 26-43 (2015).
J. Shane, Q. Gu, A. Potterton and Y. Fainman, “Effect of undercut etch on performance and fabrication robustness of metal-clad semiconductor nanolasers“, IEEE Journal of Quantum Electronics, 51, no. 1, 1-9 (2015).
Q. Gu, J. Shane, F. Vallini, B. Wingad, J. ST Smalley, N. C. Frateschi and Y. Fainman, “Amorphous Al₂O₃ shield for thermal management in electrically pumped metallo-dielectric nanolasers“, IEEE Journal of Quantum Electronics, 50, no. 7, 499-509 (2014).
Q. Gu, J. ST Smalley, M. P. Nezhad, A. Simic, J. H. Lee, M. Katz, O. Bondarenko, B. Slutsky, A. Mizrahi, V. Lomakin and Y. Fainman, “Sub-wavelength semiconductor lasers for dense chip-scale integration“, Advances in Optics and Photonics, vol. 6, no. 1, 1-56 (2014).
J. ST Smalley, Q. Gu and Y. Fainman, “Temperature dependence of the spontaneous emission factor in subwavelength semiconductor lasers“, IEEE Journal of Quantum Electronics, 50, no. 3, 175-185 (2014).
[Book Chapter] L. Pang, L. M. Freeman, H. M. Chen, Q. Gu and Y. Fainman, “Chapter: Plasmonics in imaging, biodetection and nanolasers” in Modern Plasmonics, Vol. 4. (eds by A. Maradudin, J. R. Sambles, and W. L. Barnes), 2014, Elsevier.
[Book Chapter] M. P. Nezhad, A. Simic, A. Mizrahi, J. H. Lee, M. Kats, O. Bondarenko, Q. Gu, V. Lomakin, B. Slutsky, and Y. Fainman, “Chapter: Nanoscale Metallo-Dielectric Coherent Light Sources.”in Compact Semiconductor Lasers (eds R. M. De La Rue, Y. Siyuan and J.-M. Lourtioz), 2014, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany.
F. Vallini, Q. Gu, M. Kats, Y. Fainman and N. C. Frateschi, “Carrier saturation in multiple quantum well metallo-dielectric semiconductor nanolaser: Is bulk material a better choice for gain media?“, Optics Express, 21, no. 22, 25985-25998 (2013).
O. Bondarenko, Q. Gu, J. Shane, A. Simic, B. Slutsky, and Y. Fainman, “Wafer bonded distributed feedback laser with sidewall modulated Bragg gratings“, Applied Physics Letters, 103, no. 4, 043105-043105 (2013).
Q. Gu, B. Slutsky, F. Vallini, J. ST Smalley, M. P. Nezhad, N. C. Frateschi, and Y. Fainman, “Purcell effect in sub-wavelength semiconductor lasers“, Optics Express, 21, no. 13, 15603-15617 (2013).
Y. Fainman, D. Tan, S. Zamek, O. Bondarenko, A. Simic, A. Mizrahi, M. Nezhad, V. Lomakin, Q. Gu, J. H. Lee, M. Khajavikhan and B. Slutsky, “Passive and Active Nanophotonics”, Advances in Science and Technology, vol. 82, 9-18 (2012)
J. H. Lee, M. Khajavikhan, A. Simic, Q. Gu, O. Bondarenko, B. Slutsky, M. P. Nezhad, and Y. Fainman, “Electrically pumped sub-wavelength metallo-dielectric pedestal pillar lasers“, Optics Express, 19, no. 22, 21524-21531 (2011).
O. Bondarenko, A. Simic, Q. Gu, J. H. Lee, B. Slutsky, M. P. Nezhad, and Y. Fainman, “Wafer bonded subwavelength metallo-dielectric laser“, IEEE Photonics Journal, 3, no. 3, 608-616 (2011).
Q. Gu, W. Hofmann, M.-C. Amann, L. Chrostowski, “Optically Injection-Locked VCSEL as a Duplex Transmitter/Receiver“, IEEE Photonics Technology Letters, vol. 20, issue 7, pp. 463–465 (2008).