Prof. Benfeng Bai Profile

Prof. Benfeng Bai

at Tsinghua Univ

SPIE Involvement:

Conference Program Committee | Author

Area of Expertise:

nanophotonics , near-field optics

Publications (19)

Proceedings Article | 4 January 2023 Poster

Nanoscale imaging of optical near-field distribution by detecting induced force of photothermal expansion

Yuxiao Han, Benfeng Bai, Hong-Bo Sun

Proceedings Volume PC12316, PC123160J (2023) https://doi.org/10.1117/12.2641721

KEYWORDS: Near field optics, Optical imaging, Signal to noise ratio, Visible radiation, Spectroscopy, Scanning electron microscopy, Near field, Nanoimaging, Electron microscopes, Atomic force microscopy

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Proceedings Article | 4 January 2023 Presentation

Super-resolved identification of nanoscale defects in low-dimensional materials by near-field photoluminescence mapping

Huang Jiatai, Cui Tong, Bai Benfeng

Proceedings Volume PC12316, PC123160B (2023) https://doi.org/10.1117/12.2642169

KEYWORDS: Luminescence, Near field, Resonance enhancement, Optoelectronic devices, Near field scanning optical microscopy, Excitons, Spatial resolution, Optical microscopy, Nanospectroscopy, Molecules

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Proceedings Article | 4 January 2023 Poster

Visualization of nanoscale high-order vortex beam generation by phase-resolved near-field imaging

Pengyi Feng, Benfeng Bai, Hong-Bo Sun

Proceedings Volume PC12316, PC123160P (2023) https://doi.org/10.1117/12.2642147

KEYWORDS: Near field scanning optical microscopy, Near field, Photodetectors, Wavefronts, Super resolution, Polarization, Photonic nanostructures, Phase shift keying, Nanostructures, Tomography

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SPIE Journal Paper | 14 November 2022 Open Access

Silicon nitride-based Kerr frequency combs and applications in metrology

Zhaoyang Sun, Yang Li, Benfeng Bai, Zhendong Zhu, Hong-Bo Sun

AP, Vol. 4, Issue 06, 064001, (November 2022) https://doi.org/10.1117/12.10.1117/1.AP.4.6.064001

KEYWORDS: Frequency combs, Dispersion, Solitons, Silicon, Metrology, Resonators, Ranging, Photonics, Waveguides, Microresonators

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Proceedings Article | 9 October 2021 Presentation

Near-field imaging of photonic spin-orbit interactions and optical nonlinear effects in nanostructures

Benfeng Bai, Tong Cui

Proceedings Volume 11904, 119040H (2021) https://doi.org/10.1117/12.2602571

KEYWORDS: Nonlinear optics, Near field, Nanostructures, Near field optics, Near field scanning optical microscopy, Nanophotonics, Electroluminescent displays, Wavefronts, Visualization, Third-harmonic generation

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Proceedings Article | 10 October 2020 Presentation

Unidirectional ultrafast photon emission from quantum dots mediated by plasmonic hybrid nanoantennas

Benfeng Bai, Guoce Yang, Hong-Bo Sun

Proceedings Volume 11557, 115570C (2020) https://doi.org/10.1117/12.2575273

KEYWORDS: Quantum dots, Nanoantennas, Plasmonics, Ultrafast phenomena, Photonic nanostructures, Quantum efficiency, Nanoparticles, Metals, Glasses, Active optics

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Proceedings Article | 23 May 2018 Presentation

Near-field plasmonic beam engineering by complex amplitude modulation based on metasurface (Conference Presentation)

Lingling Huang, Xu Song, Lin Sun, Xiaomeng Zhang, Ruizhe Zhao, Xiaowei Li, Jia Wang, Benfeng Bai, Yongtian Wang, Thomas Zentgraf

Proceedings Volume 10672, 106721I (2018) https://doi.org/10.1117/12.2303819

KEYWORDS: Near field, Plasmonics, Amplitude modulation, Spiral phase plates, Wave propagation, Surface plasmon polaritons, Integrated nanophotonics, Plasmons, Numerical simulations, Beam shaping

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Proceedings Article | 26 April 2016 Paper

Effective generation of unidirectional SPP beam with arbitrary profile

Oubo You, Benfeng Bai, Xiaoyu Wu, Zhendong Zhu, Qixia Wang

Proceedings Volume 9890, 98900W (2016) https://doi.org/10.1117/12.2227668

KEYWORDS: Spiral phase plates, Near field scanning optical microscopy, Surface plasmon polaritons, Near field optics, Inspection, Photonic integrated circuits, Plasmonics, Wavefronts, Wave propagation, Gold, Nanoantennas, Near field scanning optical microscopy, Plasmonics, Beam propagation method, Near field

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Proceedings Article | 26 April 2016 Paper

Inverse scattering spectroscopic method for the fast measurement of the number and mass concentrations of metal nanoparticle colloid

Guoce Yang, Benfeng Bai, Wenqi Liu, Xiaochun Wu

Proceedings Volume 9890, 98900P (2016) https://doi.org/10.1117/12.2227493

KEYWORDS: Picosecond phenomena, Transmission electron microscopy, Light scattering, Inverse problems

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Proceedings Article | 18 April 2016 Presentation + Paper

Plasmonic hierarchical nanostructures with cascaded field enhancement and their SERS applications

Benfeng Bai, Zhendong Zhu

Proceedings Volume 9884, 988412 (2016) https://doi.org/10.1117/12.2227478

KEYWORDS: Nanostructures, Plasmonics, Surface enhanced Raman spectroscopy, Nanolithography, Nanofabrication, Near field optics, Light-matter interactions, Surface plasmons, Fabrication, Gold, Etching, Reactive ion etching, Plasma, Polymethylmethacrylate, Oxygen

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Proceedings Article | 13 November 2014 Paper

Manipulating wave propagation with geometric metasurfaces: fundamentals and applications

Lingling Huang, Xianzhong Chen, Benfeng Bai, Qiaofeng Tan, Guofan Jin, Thomas Zentgraf, Shuang Zhang

Proceedings Volume 9278, 927804 (2014) https://doi.org/10.1117/12.2071744

KEYWORDS: Spiral phase plates, Holography, Polarization, Diffraction, Phase shift keying, Refraction, Antennas, Holograms, Wavefronts, Nanorods

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Proceedings Article | 1 June 2011 Paper

Thermal behavior of waveguide gratings

M. Saleem, M. Khan, Z. Khan, P. Stenberg, T. Alasaarela, S. Honkanen, B. Bai, J. Turunen, P. Vahimaa

Proceedings Volume 8069, 80690A (2011) https://doi.org/10.1117/12.885708

KEYWORDS: Reflectivity, Waveguides, Polymers, Atomic layer deposition, Optical design, Thermal optics, Refractive index, Diffraction gratings, Temperature metrology, Titanium dioxide

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Proceedings Article | 2 September 2009 Paper

Optical activity in metal and dielectric planar chiral gratings

Kuniaki Konishi, Natsuki Kanda, Benfeng Bai, Xiangfeng Meng, Petri Karvinen, Jari Turunen, Yuri Svirko, Makoto Kuwata-Gonokami

Proceedings Volume 7395, 73951F (2009) https://doi.org/10.1117/12.827004

KEYWORDS: Metals, Optical activity, Polarization, Dielectric polarization, Terahertz radiation, Surface plasmons, Interfaces, Dielectrics, Resonance enhancement, Waveguides

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Proceedings Article | 2 September 2009 Paper

Artificial optical activity in chiral resonant nanogratings

Benfeng Bai

Proceedings Volume 7393, 73930K (2009) https://doi.org/10.1117/12.828319

KEYWORDS: Polarization, Optical activity, Dielectric polarization, Transmittance, Resonance enhancement, Birefringence, Dispersion, Refractive index, Waveguides, Dichroic materials

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Proceedings Article | 26 August 2008 Paper

Role of local fields and defects in the nonlinear response of metal nanostructures

Martti Kauranen, Hannu Husu, Sami Kujala, Brian Canfield, Janne Laukkanen, Benfeng Bai, Markku Kuittinen, Jari Turunen, Juha Kontio, Jukka Viheriälä, Tapio Niemi, Eric Chandler, Jeff Squier

Proceedings Volume 7032, 70321J (2008) https://doi.org/10.1117/12.794220

KEYWORDS: Second-harmonic generation, Polarization, Metals, Nonlinear response, Particles, Nanostructures, Gold, Mirrors, Dielectric polarization, Plasmons

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Proceedings Article | 23 April 2008 Paper

Gap-dependent chiral coupling in T-shaped gold nanodimers

Martti Kauranen, Hannu Husu, Brian Canfield, Janne Laukkanen, Benfeng Bai, Markku Kuittinen, Jari Turunen

Proceedings Volume 6988, 69880K (2008) https://doi.org/10.1117/12.780513

KEYWORDS: Polarization, Gold, Second-harmonic generation, Metals, Nanostructures, Nonlinear response, Nanophotonics, Plasmons, Scanning electron microscopy, Electron microscopes

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Proceedings Article | 28 September 2007 Paper

Second-harmonic generation driven by asymmetric local fields in T-shaped gold nanodimers

Brian Canfield, Hannu Husu, Benfeng Bai, Janne Laukkanen, Markku Kuittinen, Jari Turunen, Martti Kauranen

Proceedings Volume 6641, 66410Q (2007) https://doi.org/10.1117/12.733618

KEYWORDS: Second-harmonic generation, Polarization, Metals, Gold, Nanoparticles, Optical spheres, Particles, Plasmons, Polarizers, Physics

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Proceedings Article | 28 September 2007 Paper

Local-field and multipole effects in second-harmonic generation from gold nanoparticles and nanodimers

Martti Kauranen, Brian Canfield, Sami Kujala, Hannu Husu, Benfeng Bai, Janne Laukkanen, Markku Kuittinen, Yuri Svirko, Jari Turunen

Proceedings Volume 6641, 66410P (2007) https://doi.org/10.1117/12.731234

KEYWORDS: Second-harmonic generation, Polarization, Gold, Nanoparticles, Metals, Particles, Nanostructures, Nonlinear response, Wave plates, Scanning electron microscopy

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Proceedings Article | 7 February 2005 Paper

Improving the Fourier modal method for crossed gratings with C3 symmetry by using a group-theoretic approach

Benfeng Bai, Lifeng Li

Proceedings Volume 5636, (2005) https://doi.org/10.1117/12.571589

KEYWORDS: Diffraction gratings, Diffraction, Matrices, Superposition, Polarization, Numerical analysis, Electromagnetism, Technetium, Magnetism, Algorithms

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