Skip to content

Home Search Authors Pakistan News Saved

SciRah

SciRah does not host or store research papers. Results come live from free, official scholarly APIs, and every paper links back to its original source.

Data sources

OpenAlex
Semantic Scholar
Crossref
CORE
arXiv
PubMed

Privacy policy Terms of service

X. Qi · SciRah

Researcher profile · Semantic Scholar

X. Qi

Share profile

X. Qi — researcher profile on SciRah

h-index: 13
Works: 65
Citations: 468

Most-cited papers

Frequency combs in quantum cascade lasers: An overview of modeling and experiments
C. Silvestri, X. Qi, T. Taimre, K. Bertling +1 more
2023APL Photonics44 citations Open access
Semantic Scholar
Fiber Dispersion and Nonlinearity Influences on Transmissions of AM and FM Data Modulation Signals in Radio-Over-Fiber System
X. Qi, Jia-Ming Liu, Xiao-Ping Zhang, Liang Xie
2010IEEE Journal of Quantum Electronics38 citations
Semantic Scholar
Terahertz in vivo imaging of human skin: Toward detection of abnormal skin pathologies
X. Qi, K. Bertling, J. Torniainen, F. Kong +13 more
2024APL Bioengineering32 citations Open access
Semantic Scholar
Terahertz imaging of human skin pathologies using laser feedback interferometry with quantum cascade lasers
X. Qi, K. Bertling, M. Stark, T. Taimre +16 more
2023Biomedical Optics Express24 citations Open access
Semantic Scholar
Frequency combs induced by optical feedback and harmonic order tunability in quantum cascade lasers
C. Silvestri, X. Qi, T. Taimre, A. Rakić
2023APL Photonics23 citations Open access
Semantic Scholar
Methane Gas Adsorption and Detection Using the Metal-Decorated Blue Phosphorene
Jia-Jin Li, X. Qi, Fang Xie, Dan-Wei Wu +2 more
2022Social Science Research Network22 citations
Semantic Scholar
Ultrafast switch-on dynamics of frequency-tuneable semiconductor lasers
Iman Kundu, Fei-Hu Wang, X. Qi, H. Nong +15 more
2018Nature Communications22 citations Open access
Semantic Scholar
Detection sensitivity of laser feedback interferometry using a terahertz quantum cascade laser.
J. Keeley, K. Bertling, P. Rubino, Y. Lim +10 more
2019Optics Letters20 citations Open access
Semantic Scholar
Multimode dynamics of terahertz quantum cascade lasers: Spontaneous and actively induced generation of dense and harmonic coherent regimes
C. Silvestri, X. Qi, T. Taimre, A. Rakić
2022Physical Review A18 citations Open access
Semantic Scholar
Observation of optical feedback dynamics in single-mode terahertz quantum cascade lasers: Transient instabilities
X. Qi, K. Bertling, T. Taimre, G. Agnew +11 more
2021Physical Review A18 citations
Semantic Scholar
Laser feedback interferometry in multi-mode terahertz quantum cascade lasers.
X. Qi, G. Agnew, T. Taimre, She Han +6 more
2020Optics Express16 citations Open access
Semantic Scholar
Multi-spectral terahertz sensing: proposal for a coupled-cavity quantum cascade laser based optical feedback interferometer.
X. Qi, G. Agnew, Iman Kundu, T. Taimre +9 more
2017Optics Express15 citations Open access
Semantic Scholar
Comparison of T-matrix calculation methods for scattering by cylinders in optical tweezers.
X. Qi, T. Nieminen, A. Stilgoe, V. Loke +1 more
2014Optics Letters14 citations
Semantic Scholar
Mode Selection and Tuning Mechanisms in Coupled-Cavity Terahertz Quantum Cascade Lasers
X. Qi, Iman Kundu, P. Dean, G. Agnew +7 more
2017IEEE Journal of Selected Topics in Quantum Electronics13 citations Open access
Semantic Scholar
External cavity terahertz quantum cascade laser with a metamaterial/graphene optoelectronic mirror
N. Almond, X. Qi, R. Degl’Innocenti, Stephen J. Kindness +11 more
2020Applied Physics Letters12 citations Open access
Semantic Scholar
A QEPAS-Based Central Wavelength Stabilized Diode Laser for Gas Sensing
P. Gong, Liang Xie, X. Qi, Rui Wang
2015IEEE Photonics Technology Letters12 citations
Semantic Scholar
Feedback Regimes of LFI Sensors: Experimental Investigations
K. Bertling, X. Qi, T. Taimre, Y. Lim +1 more
2022Italian National Conference on Sensors11 citations Open access
Semantic Scholar
Ultrafast Buildup Dynamics of Terahertz Pulse Generation in Mode-Locked Quantum Cascade Lasers
Fei-Hu Wang, X. Qi, V. Pistore, Lian-He H. Li +7 more
2022Physical Review Applied11 citations Open access
Semantic Scholar
Carrier generation and IF signal up-conversion using optical injection locking and stimulated Brillouin scattering
W. Li, Ning-Hua Zhu, Lixian Wang, Jianguo Liu +2 more
201011 citations
Semantic Scholar
Terahertz quantum cascade laser under optical feedback: effects of laser self-pulsations on self-mixing signals.
X. Qi, K. Bertling, T. Taimre, G. Agnew +9 more
2021Optics Express10 citations Open access
Semantic Scholar
Ultrafast Pulse Generation from Quantum Cascade Lasers
Fei-Hu Wang, X. Qi, Zhi-Chao Chen, M. Razeghi +1 more
2022Micromachines9 citations Open access
Semantic Scholar
A quartz-enhanced photoacoustic spectroscopy sensor for measurement of water vapor concentration in the air*
P. Gong, Liang Xie, X. Qi, Rui Wang +5 more
20157 citations Open access
Semantic Scholar
Dual-beam optically injected semiconductor laser for radio-over-fiber downlink transmission with tunable microwave subcarrier frequency
Yu-Ping Liu, X. Qi, Liang Xie
20137 citations
Semantic Scholar
Optically-driven organic nano-step actuator for reconfigurable photonic circuits
Ji-Zhe Zhang, Xin-Biao Xu, Yan-Jun Gong, Zhu-Bo Wang +16 more
2025Nature Communications6 citations Open access
Semantic Scholar
Terahertz imaging with self-pulsations in quantum cascade lasers under optical feedback
X. Qi, K. Bertling, T. Taimre, Y. Lim +7 more
2021APL Photonics6 citations Open access
Semantic Scholar
Widely tunable microwave photonic filter based on self-adaptive optical carrier regeneration
Guan-Peng Li, Hui Wang, X. Qi, Liang Xie +1 more
20176 citations
Semantic Scholar
Comparisons of typical nonlinear states in single- and dual-beam optically injected semiconductor lasers
X. Qi, Liang Xie, Yu-Ping Liu
20136 citations
Semantic Scholar
Spectral Sculpting of Chaotic-UWB Signals Using a Dual-Loop Optoelectronic Oscillator
Jianyu Zheng, Ning-Hua Zhu, Lixian Wang, Ming Li +4 more
2013IEEE Photonics Technology Letters6 citations
Semantic Scholar
Harmonic active mode locking in terahertz quantum cascade lasers
C. Silvestri, X. Qi, T. Taimre, A. Rakić
2023Physical Review A5 citations
Semantic Scholar
Optical feedback effects on terahertz quantum cascade lasers: modelling and applications
A. Rakić, Y. Lim, T. Taimre, G. Agnew +19 more
2016SPIE/COS Photonics Asia4 citations Open access
Semantic Scholar
Subwavelength 3D terahertz imaging with a single-pixel laser transceiver.
Jorge Silva, Martin Plöschner, K. Bertling, Mukund Ghantala +17 more
2025Optics Express3 citations Open access
Semantic Scholar
Shaping terahertz harmonic frequency combs with frequency dependent external reflectors
C. Silvestri, X. Qi, T. Taimre, A. Rakić
20243 citations
Semantic Scholar
Self-Pulsations in Terahertz Quantum Cascade Lasers under Strong Optical Feedback: The Effect of Multiple Reflections in the External Cavity
X. Qi, H. Loh, T. Taimre, K. Bertling +2 more
2022Italian National Conference on Sensors3 citations Open access
Semantic Scholar
Terahertz frequency quantum cascade lasers: Optical feedback effects and applications
A. Rakić, G. Agnew, X. Qi, T. Taimre +17 more
2016International Conference on Numerical Simulation of Optoelectronic Devices3 citations
Semantic Scholar
A quartz-enhanced photoacoustic spectroscopy sensor for measurement of water vapor concentration in the air
Ping Gong, Liang Xie, X. Qi, Rui Wang +5 more
20153 citations
Semantic Scholar
Optical feedback induced irregular and chaotic dynamics in terahertz quantum cascade laser combs
X. Qi, C. Silvestri, T. Taimre, A. Rakić
2025APL Photonics2 citations Open access
Semantic Scholar
Liouvillian Superoperator and Maxwell–Bloch Dynamics Under Optical Feedback via the Self-Mixing Effect in Terahertz Quantum Cascade Lasers
A. Demić, Zoran Ikonić, P. Dean, X. Qi +4 more
2025Photonics1 citations Open access
Semantic Scholar
Author Correction: Ultrafast switch-on dynamics of frequency-tuneable semiconductor lasers
Iman Kundu, Fei-Hu Wang, X. Qi, H. Nong +15 more
2018Nature Communications1 citations Open access
Semantic Scholar
Modelling of mode competition characteristics in coupled-cavity terahertz quantum cascade lasers using multi-mode reduced rate equations
X. Qi, Iman Kundu, P. Dean, G. Agnew +6 more
20161 citations
Semantic Scholar
Fluorescence plasmonic enhancement of FITC labeled PS nanoparticles coupled to silver island films.
Hui-Xia Yang, X. Qi, Bang-Hong Zhang, Hui Wang +1 more
2016Applied Optics1 citations
Semantic Scholar
Wideband fiber‐optic delay line with dynamic delay drift compensation
X. Qi, Liang Xie, Hui Wang
20151 citations
Semantic Scholar
The N-butyl isothiocyanate inhibited breast cancer by suppressing MIF-CD74 interaction.
Qiaoqiao Zhou, Qinyi Xia, Zheng-Kun Kuang, Wen-Jie Zhu +6 more
2026Toxicology and Applied Pharmacology0 citations Open access
Semantic Scholar
Terahertz quantum cascade lasers utilizing photonic molecules
Tao Zhou, X. Qi, K. Bertling, A. Rakić
2026Optics Express0 citations Open access
Semantic Scholar
Passive Beam Shaping for Terahertz Quantum Cascade Lasers
Tao Zhou, Jorge Silva, K. Bertling, X. Qi +13 more
2026IEEE Transactions on Terahertz Science and Technology0 citations
Semantic Scholar
Quantum cascade laser roadmap
C. Silvestri, A. Rakić, D. Indjin, A. Khalatpour +45 more
20260 citations
Semantic Scholar
Terahertz frequency combs in quantum cascade lasers with frequency dependent feedback
C. Silvestri, X. Qi, T. Taimre, J. Torniainen +2 more
2025International Conference on Infrared, Millimeter, and Terahertz Waves0 citations
Semantic Scholar
Shaping terahertz harmonic frequency combs with frequency-dependent external reflectors
C. Silvestri, X. Qi, T. Taimre, A. Rakić
2025Physical Review A0 citations Open access
Semantic Scholar
Detectorless 3D terahertz imaging: achieving subwavelength resolution with reflectance confocal interferometric microscopy
Jorge Silva, M. Ploschner, K. Bertling, Mukund Ghantala +17 more
20240 citations
Semantic Scholar
Linear chirp in long cavity terahertz quantum cascade laser frequency combs
C. Silvestri, X. Qi, T. Taimre, A. Rakić
2024International Conference on Infrared, Millimeter, and Terahertz Waves0 citations
Semantic Scholar
Corrections to “Mode Selection and Tuning Mechanisms in Coupled-Cavity Terahertz Quantum Cascade Lasers” [Jul/Aug 17 Art. no. 1200312]
X. Qi, D. Indjin, A. Rakić, Iman Kundu +7 more
2020IEEE Journal of Selected Topics in Quantum Electronics0 citations Open access
Semantic Scholar

Frequent co-authors

Invite them to SciRah by sharing their profile.

A. Rakić×34
Invite
A. Rakić — researcher profile on SciRah
T. Taimre×29
Invite
T. Taimre — researcher profile on SciRah
D. Indjin×21
Invite
D. Indjin — researcher profile on SciRah
K. Bertling×19
Invite
K. Bertling — researcher profile on SciRah

×13

Invite

P. Dean — researcher profile on SciRah

Invite

Y. Lim — researcher profile on SciRah

Invite

G. Agnew — researcher profile on SciRah

Invite

Liang Xie — researcher profile on SciRah

A. Valavanis×10

Invite

A. Valavanis — researcher profile on SciRah

T. Gillespie×8

Invite

T. Gillespie — researcher profile on SciRah

Lian-He H. Li×8

Invite

Lian-He H. Li — researcher profile on SciRah

Invite

E. Linfield — researcher profile on SciRah