Our work “Integrated lithium niobate photonics” was selected as “Top 10 annual research news”

Our review work “Integrated lithium niobate photonics” published in Nanophotonics was selected as “Top 10 annual research news” by media “Liang Jiang Technology review”! This work systimatically introduced the principles, applications and potentials in the area of integrated structures and devices on lithium niobate on insulator (LNOI). The 34-page full text provides you with a more detailed Read More…

Towards applications: ultra-low-loss on-chip zero-index materials

Dirac-cone materials behave like an isotropic and impedance-matched zero-index medium at Dirac-point wavelength, enabling light-matter interactions in a spatially uniform optical mode with arbitrary shapes. However, such interactions are limited to small areas because of the propagation loss. We designed an ultra-low-loss and homogeneous zero-index material by introducing resonance-trapped bound Read More…

Topology-optimized dual-polarization Dirac cones

Abstract: We apply a large-scale computational technique, known as topology optimization, to the inverse design of photonic Dirac cones. In particular, we report on a variety of photonic crystal geometries, realizable in simple isotropic dielectric materials, which exhibit dual-polarization and dual-wavelength Dirac cones. We demonstrate the flexibility of this technique by designing photonic cryRead More…

Contact

Yang Li Associate Professor The Department of Precision Instruments, Tsinghua University Room 3505, 9003 Building Tsinghua University Haidian District Beijing, China 100084 Tel: +86.16601021689 (Mobile) E-mail: yli9003@mail.tsinghua.edu.cn
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Integrated lithium niobate photonics

Abstract: Lithium niobate (LiNbO3) on insulator (LNOI) is a promising material platform for integrated photonics due to single crystal LiNbO3 film’s wide transparent window, high refractive index, and high second-order nonlinearity. Based on LNOI, the fast-developing ridgewaveguide fabrication techniques enabled various structures, devices, systems, and applications. We review the basic structRead More…