L
Libo Yu
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 12
Citations - 392
Libo Yu is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Surface wave & Near-field scanning optical microscope. The author has an hindex of 8, co-authored 12 publications receiving 339 citations. Previous affiliations of Libo Yu include École Normale Supérieure.
Papers
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Journal ArticleDOI
Manipulating Bloch surface waves in 2D: a platform concept-based flat lens
TL;DR: Yu et al. as mentioned in this paper used an ultrathin (λ/15) polymer coating to modify the local effective refractive index of a dielectric multilayer stack that guides Bloch surface waves.
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Bloch surface waves in ultrathin waveguides: near-field investigation of mode polarization and propagation
Tristan Sfez,Emiliano Descrovi,Libo Yu,Daniele Brunazzo,Marzia Quaglio,Lorenzo Dominici,Wataru Nakagawa,Francesco Michelotti,Fabrizio Giorgis,Olivier J. F. Martin,Hans Peter Herzig +10 more
TL;DR: In this article, a multi-heterodyne scanning near-field optical microscope was used to investigate the polarization and propagation of Bloch surface waves in an ultrathin (∼λ∕10) ridge waveguide.
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Two-dimensional optics on silicon nitride multilayer: Refraction of Bloch surface waves
Tristan Sfez,Emiliano Descrovi,Libo Yu,Marzia Quaglio,Lorenzo Dominici,Wataru Nakagawa,Francesco Michelotti,Fabrizio Giorgis,Hans Peter Herzig +8 more
TL;DR: In this paper, a dielectric multilayer can sustain Bloch surface waves (BSWs) using a multiheterodyne scanning near-field optical microscope that resolves phase and polarization.
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Asymmetrical excitation of surface plasmon polaritons on blazed gratings at normal incidence
Benfeng Bai,Xiangfeng Meng,Xiangfeng Meng,Janne Laukkanen,Tristan Sfez,Libo Yu,Wataru Nakagawa,Hans Peter Herzig,Lifeng Li,Jari Turunen +9 more
TL;DR: In this paper, the effect of asymmetrical coupling of normally incident light to surface plasmon polaritons (SPPs) on metallic blazed gratings was investigated, and a two-dimensional (2D) area-coded binary grating and a 1D slanted sinusoidal grating were investigated.
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Two-dimensional polymer grating and prism on Bloch surface waves platform.
TL;DR: A one-dimensional photonic crystal sustaining Bloch Surface Waves is used as a platform for two-dimensional integrated optics that includes different optical components and shows low loss, long propagation distance and high surface field enhancement.