109 citations · 448 across the 18 of their papers we have counts for
18 papers
Second-harmonic generation with a 440,000% W-1 conversion efficiency in a lithium niobate microcavity without periodic poling
Xiao Wu, Zhenzhong Hao, Li Zhang +6
Thin-film lithium niobate (TFLN) enables extremely high-efficiency second-order nonlinear optical effects due to large nonlinear coefficient d33 and strong optical field localizati…
High-efficiency edge couplers enabled by vertically tapering on lithium-niobate photonic chips
Di Jia, Qiang Luo, Chen Yang +7
In the past decade, photonic integrated circuits (PICs) based on thin-film lithium niobate (TFLN) have advanced in various fields, including optical communication, nonlinear photon…
Second harmonic and cascaded third harmonic generation in generalized quasi-periodic poled lithium niobate waveguides
Li Zhang, Xiao Wu, Zhenzhong Hao +5
Lithium niobate (LN) thin film has recently emerged as an important platform for nonlinear optical investigations for its large nonlinear coefficients and ability of ligh…
Robust moiré flatbands within a broad band-offset range
Peilong Hong, Yi Liang, Zhigang Chen +1
Photonic analogs of the moiré superlattices mediated by interlayer electromagnetic coupling are expected to give rise to rich phenomena such as nontrivial flatband topology. Here,…
Imperfect chirality at exceptional points in optical whispering-gallery microcavities
Junda Zhu, Changqing Wang, Can Tao +6
Non-Hermitian systems have attracted considerable attention for their broad impacts on various physical platforms and peculiar applications. In non-Hermitian systems, both eigenval…
Graphical Direct-Writing of Macroscale Domain Structures with Nanoscale Spatial Resolution in Non-Polar-Cut Lithium Niobate on Insulators
Yuezhao Qian, Ziqing Zhang, Yuezhou Liu +2
We reported on a graphical domain engineering technique with the capability to fabricate macroscale domain structures with nanoscale spatial resolution in non-polar-cut lithium nio…
Integrated LNOI single-mode lasers by Vernier effect
Ru Zhang, Chen Yang, Zhenzhong Hao +10
Microcavity lasers based on erbium-doped lithium niobate on insulator (LNOI), which are key devices for LNOI integrated photonics, have attracted much attention recently. In this L…
On-chip erbium-doped lithium niobate waveguide amplifiers
Qiang Luo, Chen Yang, Zhenzhong Hao +6
Lithium niobate on insulator (LNOI), as an emerging and promising optical integration platform, faces shortages of on-chip active devices including lasers and amplifiers. Here, we…
On-chip erbium-doped lithium niobate microring lasers
Qiang Luo, Chen Yang, Ru Zhang +9
Lithium niobate on insulator (LNOI), regarded as an important candidate platform for optical integration due to its excellent nonlinear, electro-optic and other physical properties…
On-chip erbium-doped lithium niobate microdisk lasers
Qiang Luo, ZhenZhong Hao, Chen Yang +8
Erbium-doped lithium niobate high-Q microdisk cavities were fabricated in batches by UV exposure, inductively coupled plasma reactive ion etching and chemo-mechanical polishing. Th…
Maximal distant entanglement in Kitaev tube
P. Wang, S. Lin, G. Zhang +1
We study the Kitaev model on a finite-size square lattice with periodic boundary conditions in one direction and open boundary conditions in the other. Based on the fact that the M…
Superresolved optical imaging through higher-order spatial frequency harmonic generation without beating the diffraction limit of light
Zhixiang Li, Jianji Liu, Guoquan Zhang
We proposed a method to achieve superresolved optical imaging without beating the diffraction limit of light. This is achieved by magnifying the ideal optical image of the object t…
Reciprocal and unidirectional scattering of parity-time symmetric structures
L. Jin, X. Z. Zhang, G. Zhang +1
Parity-time (PT) symmetry is of great interest. The reciprocal and unidirectional features are intriguing besides the PT symmetry phase transition. Recently, the reciprocal transmi…
Topological Characterization of Extended Quantum Ising Models
G. Zhang, Z. Song
We show that a class of exactly solvable quantum Ising models, including the transverse-field Ising model and anisotropic XY model, can be characterized as the loops in a two-dimen…
Phase Random Walk Trace in High-order Coherence of Two First-order Incoherent Sources
Peilong Hong, Guoquan Zhang
High-order coherence effects between two first-order incoherent sources with fully independent phases have been well studied in the literature, which shows interference fringes wit…
Inverted-wedge silica resonators for controlled and stable coupling
Fang Bo, Steven He Huang, Sahin Kaya Ozdemir +3
Silica microresonators with an inverted-wedge shape were fabricated using conventional semiconductor fabrication methods. The measured quality factors of the resonators were greate…
High Visibility Two-photon Interference with Classical Light
Peilong Hong, Lei Xu, Zhaohui Zhai +1
Two-photon interference with independent classical sources, in which superposition of two indistinguishable two-photon paths plays a key role, is of limited visibility of interfere…
Two-photon super bunching of thermal light via multiple two-photon-path interference
Peilong Hong, Jianbin Liu, Guoquan Zhang
We propose a novel scheme to achieve two-photon super bunching of thermal light through multiple two-photon-path interference, in which two mutually first-order incoherent optical…