Dr. Lei Xu Profile

Dr. Lei Xu

Senior Lecturer at Nottingham Trent Univ

SPIE Involvement:

Author

Publications (24)

Proceedings Article | 4 October 2023 Presentation

Infrared imaging via third-order nonlinear processes

Ze Zheng, Gabriel Sanderson, Cuifeng Ying, Lujun Huang, Arman Yousefi, Dragomir Neshev, Lei Xu, Mohsen Rahmani

Proceedings Volume PC12646, PC126460A (2023) https://doi.org/10.1117/12.2676856

KEYWORDS: Infrared imaging, Nonlinear dynamics, Imaging spectroscopy, Third harmonic generation, Spectroscopy, Spectroscopes, Silicon, Optoelectronics, Nonlinear optics, Imaging devices

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Proceedings Article | 4 October 2023 Presentation

Error mitigated metasurface-based randomized measurement schemes

Hang Ren, Ze Zheng, Yipei Zhang, Cuifeng Ying, Lei Xu, Mohsen Rahmani, Birgitta Whaley

Proceedings Volume PC12692, PC1269208 (2023) https://doi.org/10.1117/12.2676925

KEYWORDS: Quantum states, Shadows, Quantum state tomography, Quantum systems, Quantum protocols, Quantum properties, Silicon, Quantum tomography, Quantum technologies, Quantum resources

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Proceedings Article | 11 January 2023 Presentation

Third-harmonic generation and imaging with resonant Si membrane metasurfaces

Ze Zheng, Lei Xu, Lujun Huang, Daria Smirnova, Khosro Zangeneh Kamali, Arman Yousefi, Fu Deng, Maria del Rocio Camacho-Morales, Cuifeng Ying, Andrey Miroshnichenko, Dragomir Neshev, Mohsen Rahmani

Proceedings Volume PC12334, PC123340L (2023) https://doi.org/10.1117/12.2644860

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Proceedings Article | 13 October 2022 Presentation

Metallic/dielectric nanostructure for single-protein characterization

Cuifeng Ying, Arman Yousefi, Ze Zheng, Lei Xu, Mohsen Rahmani

Proceedings Volume PC12198, PC1219805 (2022) https://doi.org/10.1117/12.2634128

KEYWORDS: Proteins, Nanostructures, Luminescence, Fluorescence correlation spectroscopy, Structural dynamics, Spectroscopy, Single molecule spectroscopy, Signal detection, Resonance energy transfer, Plasmonics

Proceedings Article | 3 October 2022 Presentation

Nonlinear frequency-mixing in high-Q GaP metasurfaces (Conference Presentation)

Maria del Rocio Camacho Morales, Lei Xu, Haizhong Zhang, Son Tung Ha, Leonid Krivitskiy, Arseniy Kuznetsov, Mohsen Rahmani, Dragomir Neshev

Proceedings Volume PC12195, PC121950T (2022) https://doi.org/10.1117/12.2631743

KEYWORDS: Quantum efficiency, Harmonic generation, Waveguides, Visible radiation, Sum-frequency generation, Second-harmonic generation, Refractive index, Nonlinear dynamics, Light sources, Infrared radiation

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Proceedings Article | 3 October 2022 Presentation

Boosted second-harmonic generation in the half-etching metasurfaces governed by guided resonances and bound states in the continuum (Conference Presentation)

Ze Zheng, Mohsen Rahmani, Xu Lei, Cui-Feng Ying, Lujun Huang

Proceedings Volume PC12195, PC121950W (2022) https://doi.org/10.1117/12.2635867

KEYWORDS: Second-harmonic generation, Nanophotonics, Quantum efficiency, Nanostructures, Nanoantennas, Lithium niobate, Light-matter interactions, Light sources, Light, Frequency conversion

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SPIE Journal Paper | 14 June 2021 Open Access

Infrared upconversion imaging in nonlinear metasurfaces

Maria del Rocio Camacho-Morales, Lei Xu, Nikolay Dimitrov, Lyubomir Stoyanov, Zhonghua Ma, Alexander Dreischuh, Hark Hoe Tan, Costantino De Angelis, Chennupati Jagadish, Andrey Miroshnichenko, Davide Rocco, Valerio Gili, Andrei Komar, Mykhaylo Lysevych, Fouad Karouta, Giuseppe Leo, Mohsen Rahmani, Dragomir Neshev

AP, Vol. 3, Issue 03, 036002, (June 2021) https://doi.org/10.1117/12.10.1117/1.AP.3.3.036002

KEYWORDS: Infrared imaging, Upconversion, Gallium arsenide, Nanoantennas, Infrared radiation, Image processing, Visible radiation, Signal processing, Second-harmonic generation, Nonlinear optics

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SPIE Journal Paper | 3 February 2021 Open Access

Pushing the limit of high-Q mode of a single dielectric nanocavity

Lujun Huang, Lei Xu, Mohsen Rahmani, Dragomir Neshev, Andrey Miroshnichenko

AP, Vol. 3, Issue 01, 016004, (February 2021) https://doi.org/10.1117/12.10.1117/1.AP.3.1.016004

KEYWORDS: Dielectrics, Scattering, Silicon, Magnetism, Photonics, Dielectric polarization, Refractive index, Resonators, Quartz, Chromium

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Proceedings Article | 31 December 2019 Paper

Revisiting high order anapole mode in single dielectric nanostructure with high refractive index

Lujun Huang, Lei Xu, Andrey Miroshnichenko

Proceedings Volume 11201, 1120110 (2019) https://doi.org/10.1117/12.2540052

KEYWORDS: Scattering, Dielectrics, Nanostructures, Refractive index, Magnetism, Mie scattering, Near field, Information technology, Optical spheres, Absorption

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Proceedings Article | 31 December 2019 Paper

Infrared imaging in nonlinear GaAs metasurfaces

Maria Camacho Morales, Davide Rocco, Lei Xu, Mohsen Rahmani, Valerio Flavio Gili, Andrei Komar, Nikolay Dimitrov, Lyubomir Stoyanov, Mykhaylo Lysevych, Fouad Karouta, Alexander Dreischuh, H. Hoe Tan, Giuseppe Leo, Costantino De Angelis, Chennupati Jagadish, Andrey Miroshnichenko, Dragomir Neshev

Proceedings Volume 11201, 112011S (2019) https://doi.org/10.1117/12.2541224

KEYWORDS: Infrared imaging, Gallium arsenide, Visible radiation, Image processing, Dielectrics, Nonlinear optics, Physics, Sum-frequency generation

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Proceedings Article | 31 December 2019 Paper

Photon-pair generation via bound states in the continuum in nonlinear metasurfaces

Matthew Parry, Yifei Xing, Lei Xu, Alexander Poddubny, Dragomir Neshev, Andrey Sukhorukov

Proceedings Volume 11201, 112010G (2019) https://doi.org/10.1117/12.2539888

KEYWORDS: Scattering, Physics, Visible radiation, Infrared imaging, Infrared radiation, Spectroscopy, Laser scattering, Metamaterials, Nonlinear metamaterials, Quantum metamaterials, Entangled states, Near infrared

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Proceedings Article | 31 December 2019 Paper

Dielectric metasurface based advanced image processing

Andrei Komar, Rifat Aoni, Lei Xu, Mohsen Rahmani, Andrey Miroshnichenko, Dragomir Neshev

Proceedings Volume 11201, 112010I (2019) https://doi.org/10.1117/12.2539025

KEYWORDS: Edge detection, Dielectrics, Image processing, Magnetism, Dielectric filters, Image filtering, Silicon, Target detection, Filtering (signal processing), Amorphous silicon

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Proceedings Article | 31 December 2019 Paper

Nonlinear imaging through magnetic dipole quasi-BIC ultra-thin resonators

Lei Xu, Khosro Zangeneh Kamali, Lujun Huang, Mohsen Rahmani, Alexander Smirnov, Rocio Camacho-Morales, Yixuan Ma, Guoquan Zhang, Matt Woolley, Dragomir Neshev, Andrey Miroshnichenko

Proceedings Volume 11201, 112011D (2019) https://doi.org/10.1117/12.2541094

KEYWORDS: Resonators, Silicon, Polarization, Dielectrics, Nanophotonics, Resonance enhancement, Nonlinear optics

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Proceedings Article | 30 December 2019 Paper

Switchable unidirectional second-harmonic emission through GaAs nanoantennas

Lei Xu, Grégoire Saerens, Maria Timofeeva, Andrey Miroshnichenko, Rocio Camacho-Morales, Irina Volkovskaya, Daria Smirnova, Mykhaylo Lysevych, Lujun Huang, Marcus Cai, Fouad Karouta, H. Hoe Tan, Martti Kauranen, Chennupati Jagadish, Rachel Grange, Dragomir Neshev, Mohsen Rahmani

Proceedings Volume 11200, 112000J (2019) https://doi.org/10.1117/12.2539887

KEYWORDS: Gallium arsenide, Nanoantennas, Nonlinear optics, Switching, Dielectrics, Second-harmonic generation, Physics, Scattering

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Proceedings Article | 30 December 2019 Paper

Tailoring directional scattering of second-harmonic generation from (111)-GaAs nanoantennas

J. Sautter, L. Xu, A. Miroshnichenko, M. Lysevych, I. Volkovskaya, D. Smirnova, M. Camacho Morales, K. Zangeneh Kamali, F. Karouta, K. Vora, H. H. Tan, M. Kauranen, I. Staude, C. Jagadish, D. Neshev, M. Rahmani

Proceedings Volume 11200, 112000H (2019) https://doi.org/10.1117/12.2539086

KEYWORDS: Nanoantennas, Second-harmonic generation, Polarization, Scattering, Harmonic generation, Group III-V semiconductors, Crystals, Nanolithography, Laser scattering, Physics

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Proceedings Article | 9 September 2019 Presentation

Photon-pair generation via bound states in the continuum in nonlinear metasurfaces (Conference Presentation)

Matthew Parry, Yifei Xing, Lei Xu, Alexander Poddubny, Dragomir Neshev, Andrey Sukhorukov

Proceedings Volume 11080, 1108014 (2019) https://doi.org/10.1117/12.2528939

KEYWORDS: Imaging spectroscopy, Numerical analysis, Sum-frequency generation, Numerical simulations, Visible radiation, Infrared sensors, Infrared imaging, Infrared spectroscopy, Infrared radiation, Spectroscopy

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SPIE Journal Paper | 21 June 2019 Open Access

Surface that perceives depth: 3D imaging with metasurfaces

Lei Xu, Mohsen Rahmani

AP, Vol. 1, Issue 03, 030501, (June 2019) https://doi.org/10.1117/12.10.1117/1.AP.1.3.030501

KEYWORDS: Stereoscopy, Computed tomography, Lenses, Photonics, Silicon, Physics, Nanostructures, Tomography, Structured light, Cameras

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Proceedings Article | 17 September 2018 Presentation

All-dielectric metasurfaces for measuring multi-photon quantum-polarization states (Conference Presentation)

Kai Wang, James Titchener, Sergey Kruk, Lei Xu, Hung-Pin Chung, Matthew Parry, Ivan Kravchenko, Yen-Hung Chen, Alexander Solntsev, Yuri Kivshar, Dragomir Neshev, Andrey Sukhorukov

Proceedings Volume 10719, 1071914 (2018) https://doi.org/10.1117/12.2320424

KEYWORDS: Optical components, Polarization, Matrices, Nanophotonics, Optical tomography, Tomography, Chemical elements, Photons, Interferometry, Sensors

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Proceedings Article | 14 March 2018 Presentation

Optical frequency conversion at the nanoscale: metallic, dielectric, and semiconductor nanostructures (Conference Presentation)

Lei Xu, Mohsen Rahmani, Dragomir Neshev, Yuri Kivshar

Proceedings Volume 10540, 1054018 (2018) https://doi.org/10.1117/12.2281498

KEYWORDS: Dielectrics, Nanostructures, Semiconductors, Harmonic generation, Metals, Nanofabrication, Silicon, Ultrafast phenomena, Group III-V semiconductors, Frequency conversion

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Proceedings Article | 21 September 2017 Presentation

Nonlinear frequency conversion with all-dielectric nanoantennas (Conference Presentation)

Dragomir Neshev, Sergey Kruk, Mohsen Rahmani, Maria del Rocio Camacho-Morales, Lei Wang, Lei Xu, Daria Smirnova, Alexander Solntsev, Yuri Kivshar

Proceedings Volume 10343, 103430H (2017) https://doi.org/10.1117/12.2273567

KEYWORDS: Dielectrics, Nonlinear frequency conversion, Harmonic generation, Wavefronts, Beam controllers, Silicon, Antennas, Polarization, Light sources, Light

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Proceedings Article | 21 September 2017 Presentation

Directional second harmonic generation from AlGaAs nanoantennas (Conference Presentation)

Maria del Rocio Camacho Morales, Mohsen Rahmani, Sergey Kruk, Lei Wang, Lei Xu, Daria Smirnova, Alexander Solntsev, Andrey Miroshnichenko, Hoe Tan, Fouad Karouta, Shagufta Naureen, Kaushal Vora, Luca Carletti, Costantino De Angelis, Chennupati Jagadish, Yuri Kivshar, Dragomir Neshev

Proceedings Volume 10343, 103430J (2017) https://doi.org/10.1117/12.2273553

KEYWORDS: Second-harmonic generation, Harmonic generation, Group III-V semiconductors, Nonlinear optics, Glasses, Frequency conversion, Plasmonics, Nanostructures, Signal attenuation, Resistance

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Proceedings Article | 15 August 2017 Presentation

Highly directional second-harmonic generation from AlGaAs nanoparticles (Conference Presentation)

Maria del Rocio Camacho Morales, Mohsen Rahmani, Sergey Kruk, Lei Wang, Lei Xu, Daria Smirnova, Alexander Solntsev, Andrey Miroshnichenko, Hark Hoe Tan, Fouad Karouta, Shagufta Naureen, Kaushal Vora, Luca Carletti, Costantino De Angelis, Chennupati Jagadish, Yuri Kivshar, Dragomir Neshev

Proceedings Volume 10228, 102280H (2017) https://doi.org/10.1117/12.2264351

KEYWORDS: Second-harmonic generation, Nonlinear optics, Group III-V semiconductors, Dielectric polarization, Nanolithography, Laser scattering, Scattering, Resistance, Frequency conversion, Dielectrics

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Proceedings Article | 29 November 2012 Paper

Linear and nonlinear localized modes in the width-disordered one-dimensional waveguide arrays

Lei Xu, Yi Yin, Fang Bo, Jingjun Xu, Guoquan Zhang

Proceedings Volume 8554, 855410 (2012) https://doi.org/10.1117/12.2000578

KEYWORDS: Waveguides, Refractive index, Light wave propagation, Nonlinear optics, Planar waveguides, Neodymium, Modulation, Solids, Photonics, Beam propagation method

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Proceedings Article | 29 November 2012 Paper

Active chromatic control and resonant improvement on the transverse-phase-modulation-induced group delay of light

Fang Bo, Lei Xu, Jie Wang, Guoquan Zhang, Jingjun Xu

Proceedings Volume 8554, 85540O (2012) https://doi.org/10.1117/12.2001191

KEYWORDS: Nonlinear optics, Fabry–Perot interferometers, Gaussian beams, Slow light, Modulation, Beam controllers, Colorimetry, Photonics, Phase modulation, Geometrical optics

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Showing 5 of 24 publications

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