Huihui Lu
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View article: Optoelectronic synergistic terahertz fiber modulator for free-electron laser compatibility
Optoelectronic synergistic terahertz fiber modulator for free-electron laser compatibility Open
Free-electron laser (FEL) operating in the terahertz (THz) spectral regime has found significant applications in diverse research fields. Nevertheless, fiber-based THz modulators based on FEL systems remain relatively underexplored. This s…
View article: Versatile Lithium Niobate Platform for Photoacoustic/Thermoelastic Gas Sensing and Photodetection
Versatile Lithium Niobate Platform for Photoacoustic/Thermoelastic Gas Sensing and Photodetection Open
We present a lithium niobate multi-functional platform (LN-MFP) that seamlessly integrates photoacoustic spectroscopy, light induced thermoelastic spectroscopy, and photodetection into a single on-chip device. By levering LN's strong piezo…
View article: Narrow beam and low-sidelobe two-dimensional beam steering on thin-film lithium niobate optical phased array
Narrow beam and low-sidelobe two-dimensional beam steering on thin-film lithium niobate optical phased array Open
Optical beam steering has become indispensable in free-space optical communications, light detection and ranging (LiDAR), mapping, and projection. Optical phased array (OPA) leads this field, yet conventional versions still suffer from a n…
View article: Versatile Lithium Niobate Platform for Photoacoustic/Thermoelastic Gas Sensing and Photodetection
Versatile Lithium Niobate Platform for Photoacoustic/Thermoelastic Gas Sensing and Photodetection Open
We present a lithium niobate multi-functional platform (LN-MFP) that integrates photoacoustic and thermoelastic spectroscopy with photodetection on a single chip. Utilizing LN's piezoelectric and thermoelastic properties and an optimized d…
View article: Electrically tunable plasmonic meta-grating on thin film lithium niobate
Electrically tunable plasmonic meta-grating on thin film lithium niobate Open
Leveraging lithium niobate's electro-optic properties, bound states in the continuum (BICs) offer promising advancements for low-power, high-performance photonic devices. In this study, we present a novel spatial light modulator based on a…
View article: Thermo-optic tuning of quasi bound state in continuum in lithium niobate thin film hetero-nanograting
Thermo-optic tuning of quasi bound state in continuum in lithium niobate thin film hetero-nanograting Open
Lithium niobate (LN) is difficult to etch precisely due to its stable physical and chemical properties. In recent years, more and more research has focused on etchless thin film lithium niobate (TFLN). Here, a one-dimensional SiO 2 nanogra…
View article: Tunable band-stop fiber filter based on laser-induced graphene metamaterial in THz frequency
Tunable band-stop fiber filter based on laser-induced graphene metamaterial in THz frequency Open
As an important device in the application of terahertz (THz) technology, a THz filter has broad application prospects in the fields of THz communication, imaging, and sensing. In this paper, a THz filter based on grating structure laser-in…
View article: Enhanced Photon-Pair Generation Based on Thin-Film Lithium Niobate Doubly Resonant Photonic Crystal Cavity
Enhanced Photon-Pair Generation Based on Thin-Film Lithium Niobate Doubly Resonant Photonic Crystal Cavity Open
In this work, a doubly resonant photonic crystal (PhC) cavity is proposed to enhance second harmonic generation (SHG) efficiency and photon pair generation rate (PGR). Through the exploration of geometry parameters, a band-edge mode within…
View article: Efficient second-harmonic generation of quasi-bound states in the continuum in lithium niobate thin film enhanced by Bloch surface waves
Efficient second-harmonic generation of quasi-bound states in the continuum in lithium niobate thin film enhanced by Bloch surface waves Open
Nonlinear optics has generated a wide range of applications in the fields of optical communications, biomedicine, and materials science, with nonlinear conversion efficiency serving as a vital metric for its progress. However, the weak non…
View article: RF Interconnection Design of Bump Bonding with a Dislocation Package Structure towards Electro-Optic Modulation Applications
RF Interconnection Design of Bump Bonding with a Dislocation Package Structure towards Electro-Optic Modulation Applications Open
Bonding technology can be an important component of packaging for photonic chips, such as electro-optic (EO) modulators and other active function devices. In general, an EO modulator chip can achieve a broader 3 dB EO bandwidth than its pa…
View article: Lithium niobate-enhanced laser photoacoustic spectroscopy
Lithium niobate-enhanced laser photoacoustic spectroscopy Open
In this paper, the photoacoustic spectroscopy technique based on lithium niobate crystals is initially reported, to our knowledge. A novel dual-cantilever tuning fork structure and new electrodes have been designed using Y-cut 128° blacken…
View article: Side‐Gate BN‐MoS<sub>2</sub> Transistor for Reconfigurable Multifunctional Electronics
Side‐Gate BN‐MoS<sub>2</sub> Transistor for Reconfigurable Multifunctional Electronics Open
Developing 2D reconfigurable multifunctional devices is of great potential in further miniaturizing the chip area and simplifying circuit design. 2D van der Waals (vdW) heterostructures offer a novel approach to realizing reconfigurable mu…
View article: Van der Waals Integrated LiNbO<sub>3</sub>/WS<sub>2</sub> for High‐Performance UV–Vis–NIR Photodetection (Laser Photonics Rev. 17(10)/2023)
Van der Waals Integrated LiNbO<sub>3</sub>/WS<sub>2</sub> for High‐Performance UV–Vis–NIR Photodetection (Laser Photonics Rev. 17(10)/2023) Open
Van der Waals Integrated LiNbO3/WS2 for High-Performance UV–Vis–NIR Photodetection In article number 2300286, Heyuan Guan, Tiefeng Yang, Huihui Lu, and colleagues propose a LiNbO3/WS2 hetero-integrated architecture, optimize the light-to-e…
View article: TE/TM mode electro-optic conversion based on titanium diffusion lithium niobate waveguide with polarization-maintained fiber structure
TE/TM mode electro-optic conversion based on titanium diffusion lithium niobate waveguide with polarization-maintained fiber structure Open
For the development of photonic integrated circuits and lithium niobate (LiNbO3, LN) optical waveguide technology, the implementations and applications of polarization devices based on LN is also becoming more widespread, where titanium (T…
View article: Resonant nonlinear nanostructured grating in an unstructured lithium niobate on insulator platform
Resonant nonlinear nanostructured grating in an unstructured lithium niobate on insulator platform Open
Lithium niobate (LN) is a versatile material for applications in integrated nonlinear optics; however, due to its stable physical and chemical properties, efficient nonlinear conversion with nanostructured LN is not easy to implement. Here…
View article: Versatile Tunning of Compact Microring Waveguide Resonator Based on Lithium Niobate Thin Films
Versatile Tunning of Compact Microring Waveguide Resonator Based on Lithium Niobate Thin Films Open
With the advancement of modulation technology and the requirement for device miniaturization and integration, lithium niobate on insulator (LNOI) can be a versatile platform for this pursuit, as it can confine the transmitted light at the …
View article: Broadband, Polarization-Sensitive, and Self-Powered High-Performance Photodetection of Hetero-Integrated MoS <sub>2</sub> on Lithium Niobate
Broadband, Polarization-Sensitive, and Self-Powered High-Performance Photodetection of Hetero-Integrated MoS <sub>2</sub> on Lithium Niobate Open
High-performance photodetectors hold promising potential in optical communication and imaging systems. However, conventional counterparts are suffering narrow detection range, high power consumption, and poor polarization sensitivity. Char…
View article: Directional Bloch surface wave coupling enabled by magnetic spin-momentum locking of light
Directional Bloch surface wave coupling enabled by magnetic spin-momentum locking of light Open
We achieve a directional nano-routing of BSWs with circularly polarized illumination. Such a directional coupling phenomenon is proved to be solely mediated by the optical magnetic field.
View article: 2D Transition Metal Dichalcogenide with Increased Entropy for Piezoelectric Electronics (Adv. Mater. 48/2022)
2D Transition Metal Dichalcogenide with Increased Entropy for Piezoelectric Electronics (Adv. Mater. 48/2022) Open
Piezoelectric Electronics In article number 2201630, Zhigao Hu, Zengfeng Di, and co-workers demonstrate the synthesis of 2D Mo1−xWxS2 alloy with variable W concentrations. By precisely tuning the fraction of W close to that of Mo, the Mo0.…
View article: Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator
Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator Open
Recently, an exceptional point (EP) was constructed in a coupled double-ring resonator. Generally, such non-Hermitian optical systems are realized via material selection and a spatially precise layout. However, because of material limitati…
View article: Converting between circularly polarized waves and longitudinal fields with an individual plasmonic nanohelix
Converting between circularly polarized waves and longitudinal fields with an individual plasmonic nanohelix Open
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View article: Electric Field Sensor Based on High Q Fano Resonance of Nano-Patterned Electro-Optic Materials
Electric Field Sensor Based on High Q Fano Resonance of Nano-Patterned Electro-Optic Materials Open
This paper presents theoretical studies of Fano resonance based electric-field (E-field) sensors. E-field sensor based on two electro-optical (EO) materials i.e., barium titanate (BaTiO3, BTO) nanoparticles and relaxor ferroelectric materi…
View article: Side Polished Fiber: A Versatile Platform for Compact Fiber Devices and Sensors
Side Polished Fiber: A Versatile Platform for Compact Fiber Devices and Sensors Open
Side polished fiber (SPF) has a controllable average roughness and length of the side-polishing region, which becomes a versatile platform for integrating multiple materials to interact with the evanescent field to fabricate all-fiber devi…
View article: 2D Transition Metal Dichalcogenide with Increased Entropy for Piezoelectric Electronics
2D Transition Metal Dichalcogenide with Increased Entropy for Piezoelectric Electronics Open
Piezoelectricity in 2D transition metal dichalcogenides (TMDs) has attracted considerable interest because of their excellent flexibility and high piezoelectric coefficient compared to conventional piezoelectric bulk materials. However, th…
View article: Electro-optic high-speed optical beam shifting based on a lithium niobate tapered waveguide
Electro-optic high-speed optical beam shifting based on a lithium niobate tapered waveguide Open
We propose an electro-optic on-chip beam shifting device based on gradient microstructured electrodes and an optical tapered waveguide fabricated using lithium niobate (LN). The distribution of refractive index variations of the optical wa…