Guoquan Zhang
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View article: Light-amplification-assisted sum-frequency generation in erbium-doped thin-film lithium niobate optical waveguides
Light-amplification-assisted sum-frequency generation in erbium-doped thin-film lithium niobate optical waveguides Open
Erbium-doped thin-film lithium niobate (Er 3+ :TFLN) enables integrated photonic devices through its efficient photoluminescence. However, the fixed transition energies of erbium ions intrinsically restrict emission to the telecommunicatio…
View article: Deciphering the crucial role of IGF2BP3 in modulating stemness traits of salivary adenoid cystic carcinoma
Deciphering the crucial role of IGF2BP3 in modulating stemness traits of salivary adenoid cystic carcinoma Open
View article: Fiber-to-chip grating coupler on 4H-silicon-carbide-on-insulator platform with high-efficiency
Fiber-to-chip grating coupler on 4H-silicon-carbide-on-insulator platform with high-efficiency Open
A fiber-to-chip grating coupler for transverse electric (TE) polarization was demonstrated on the emerging 4H-silicon-carbide-on-insulator (4H-SiCOI) platform, with the advantages of high coupling efficiency, low back-reflection to the wav…
View article: Local perfect chirality at reflection-zeros away from exceptional points in optical whispering gallery microcavity
Local perfect chirality at reflection-zeros away from exceptional points in optical whispering gallery microcavity Open
Recently, a local and imperfect chirality of the resonant eigenmode at the exceptional point (EP) has been reported in the optical whispering gallery microcavity system perturbed by two strong nanoscatterers [Phys. Rev. A 108, L041501 (202…
View article: In-Process Density Measurement for Model-Based Process Optimization of Functionally Graded Foam Microcellular Structures in Material Extrusion Additive Manufacturing
In-Process Density Measurement for Model-Based Process Optimization of Functionally Graded Foam Microcellular Structures in Material Extrusion Additive Manufacturing Open
View article: High-visibility calculating ghost imaging with self-reconstruction capability and extendible depth-of-field
High-visibility calculating ghost imaging with self-reconstruction capability and extendible depth-of-field Open
We customized light speckle fields with both super-bunching and non-diffracting properties, accordingly named as the super-bunching, non-diffracting (SP-ND) speckle fields, by introducing pupil function of a ring aperture with azimuthally …
View article: Current Progress in the Science of Novel Adjuvant Nano-Vaccine-Induced Protective Immune Responses
Current Progress in the Science of Novel Adjuvant Nano-Vaccine-Induced Protective Immune Responses Open
Vaccinations are vital as they protect us from various illness-causing agents. Despite all the advancements in vaccine-related research, developing improved and safer vaccines against devastating infectious diseases including Ebola, tuberc…
View article: Electro-Optical Comb Envelope Engineering Based on Mode Crossing
Electro-Optical Comb Envelope Engineering Based on Mode Crossing Open
Resonator-enhanced electro-optical (EO) combs could generate a series of comb lines with high coherence and stability. Recently, EO comb based on thin-film lithium niobate (TFLN) has begun to show great potential thanks to the high second-…
View article: Light pulse storage in Pr:YSO crystal based on the revival of silenced echo protocol
Light pulse storage in Pr:YSO crystal based on the revival of silenced echo protocol Open
We report on the light pulse storage in Pr 3+ :Y 2 SiO 5 crystal based on the revival of silenced echo protocol, which has the advantage of being immune from the spontaneous emission noise. We optimized the echo retrieval efficiency of the…
View article: Passive Thermal Control Strategies for Lithium-Ion Batteries Under Thermal Abuse Conditions: An Experimental Study on Thermal Insulation Efficacy
Passive Thermal Control Strategies for Lithium-Ion Batteries Under Thermal Abuse Conditions: An Experimental Study on Thermal Insulation Efficacy Open
View article: Study on VIV Behavior of Two 5:1 Rectangular Cylinders in Tandem Based on Correlation Analysis
Study on VIV Behavior of Two 5:1 Rectangular Cylinders in Tandem Based on Correlation Analysis Open
To investigate the vortex-induced vibration (VIV) characteristics of two rectangular cylinders with a width-to-depth ratio of 5:1 in a tandem arrangement, sectional model wind tunnel tests that measure vibration responses and pressure dist…
View article: High-efficiency edge couplers enabled by vertically tapering on lithium-niobate photonic chips
High-efficiency edge couplers enabled by vertically tapering on lithium-niobate photonic chips Open
In the past decade, photonic integrated circuits (PICs) based on thin-film lithium niobate (TFLN) have made substantial progress in various fields, including optical communication, nonlinear photonics, and quantum optics. A critical compon…
View article: A Practical Data Extraction, Cleaning, and Integration Method for Structural Condition Assessment of Highway Bridges
A Practical Data Extraction, Cleaning, and Integration Method for Structural Condition Assessment of Highway Bridges Open
The success of regional bridge condition assessment, a crucial component of systematic maintenance strategies, relies heavily on comprehensive, well-structured regional bridge databases. This study proposes the data extraction, cleaning, a…
View article: Second-harmonic generation with a 440,000% W-1 conversion efficiency in a lithium niobate microcavity without periodic poling
Second-harmonic generation with a 440,000% W-1 conversion efficiency in a lithium niobate microcavity without periodic poling Open
Thin-film lithium niobate (TFLN) enables extremely high-efficiency second-order nonlinear optical effects due to large nonlinear coefficient d33 and strong optical field localization. Here, we first designed and fabricated a pulley-wavegui…
View article: Cellular and transcriptome signatures unveiled by single-cell RNA-Seq following ex vivo infection of murine splenocytes with Borrelia burgdorferi
Cellular and transcriptome signatures unveiled by single-cell RNA-Seq following ex vivo infection of murine splenocytes with Borrelia burgdorferi Open
Introduction Lyme disease, the most common tick-borne infectious disease in the US, is caused by a spirochetal pathogen Borrelia burgdorferi ( Bb ). Distinct host responses are observed in susceptible and resistant strains of inbred of mic…
View article: High-efficiency edge couplers enabled by vertically tapering on lithium-niobate photonic chips
High-efficiency edge couplers enabled by vertically tapering on lithium-niobate photonic chips Open
In the past decade, photonic integrated circuits (PICs) based on thin-film lithium niobate (TFLN) have advanced in various fields, including optical communication, nonlinear photonics, and quantum optics. A critical component is an efficie…
View article: Robust moiré flatbands within a broad band-offset range
Robust moiré flatbands within a broad band-offset range Open
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, we propose and demonstrate a scheme to tune the flatbands …
View article: Advances in lithium niobate thin-film lasers and amplifiers: a review
Advances in lithium niobate thin-film lasers and amplifiers: a review Open
View article: Robot-assisted conformal additive manufacturing for continuous fibre-reinforced grid-stiffened shell structures
Robot-assisted conformal additive manufacturing for continuous fibre-reinforced grid-stiffened shell structures Open
The advents in continuous fibre-reinforced polymer additive manufacturing (CFRP-AM) present unprecedented opportunities for the rapid development of next-generation high-performance composites with selectively and spatially distributed rei…
View article: Ghost images with controllable visibility and spatial resolution
Ghost images with controllable visibility and spatial resolution Open
We designed a kind of speckle field with controllable visibility and speckle grain size through a modified Gerchberg-Saxton algorithm based on Fresnel diffraction. Ghost images with independently controllable visibility and spatial resolut…
View article: Second harmonic and cascaded third harmonic generation in generalized quasi-periodic poled lithium niobate waveguides
Second harmonic and cascaded third harmonic generation in generalized quasi-periodic poled lithium niobate waveguides Open
Lithium niobate (LN) thin film has recently emerged as an important platform for nonlinear optical investigations for its large $χ^{(2)}$ nonlinear coefficients and ability of light localization. In this paper, we report the first fabricat…
View article: Combining e-nose and e-tongue for improved recognition of instant starch noodles seasonings
Combining e-nose and e-tongue for improved recognition of instant starch noodles seasonings Open
Seasonings play a key role in determining sensory attributes of instant starch noodles. Controlling and improving the quality of seasoning is becoming important. In this study, five different brands along with fifteen instant starch noodle…
View article: Optical image addition and subtraction based on electromagnetically induced transparency effect
Optical image addition and subtraction based on electromagnetically induced transparency effect Open
The electromagnetically induced transparency (EIT) effect is a quantum coherence effect between different atomic transition channels. The absorption of the atomic ensemble is significantly reduced or even close to zero, and at the same tim…
View article: Robust moiré flatbands within a broad band-offset range
Robust moiré flatbands within a broad band-offset range Open
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, we propose and demonstrate a scheme to tune the flatbands i…
View article: A method for analyzing the correlation between earthquakes and underground fluid: The case of hydrogen concentration at Eryuan, Yunnan, China
A method for analyzing the correlation between earthquakes and underground fluid: The case of hydrogen concentration at Eryuan, Yunnan, China Open
Underground fluid monitoring is a common method for earthquake prediction. However, the correlations depending on statistic between the results of various underground fluids and earthquakes are usually not significant. In this study, based…
View article: Imperfect chirality at exceptional points in optical whispering-gallery microcavities
Imperfect chirality at exceptional points in optical whispering-gallery microcavities Open
Non-Hermitian systems have attracted considerable attention for their broad impacts on various physical platforms and peculiar applications. In non-Hermitian systems, both eigenvalues and eigenstates simultaneously coalesce at exceptional …
View article: Graphical Direct-Writing of Macroscale Domain Structures with Nanoscale Spatial Resolution in Non-Polar-Cut Lithium Niobate on Insulators
Graphical Direct-Writing of Macroscale Domain Structures with Nanoscale Spatial Resolution in Non-Polar-Cut Lithium Niobate on Insulators Open
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 niobate thin film on insulators through the biased probe tip o…
View article: Sum-frequency generation of a laser and its background in an on-chip lithium-niobate microdisk
Sum-frequency generation of a laser and its background in an on-chip lithium-niobate microdisk Open
Lithium-niobate microcavities have not only the ability to resonantly enhance light–matter interaction but also excellent nonlinear optical properties, thereby providing an important platform for nonlinear optical investigations. In this p…
View article: The Feasibility of Using Coxiella burnetii Avirulent Nine Mile Phase II Viable Bacteria as a Live Attenuated Vaccine Against Q fever
The Feasibility of Using Coxiella burnetii Avirulent Nine Mile Phase II Viable Bacteria as a Live Attenuated Vaccine Against Q fever Open
This study aimed to explore if viable C. burnetii avirulent Nine Mile phase II (NMII) can elicit protective immunity against virulent NM phase I (NMI) infection. Interestingly, mice immunized with viable NMII elicited significant protectio…
View article: Impact of Dose Algorithm and Calculation Angle Interval on in Vivo Dose Verification of Stereotactic Body Radiation Therapy: A Phantom Study
Impact of Dose Algorithm and Calculation Angle Interval on in Vivo Dose Verification of Stereotactic Body Radiation Therapy: A Phantom Study Open
ObjectiveTo investigate the impact of different dose algorithms and calculation angle intervals (DCAI) on the in vivo dose (IVD) verification of small-field arc therapy in stereotactic body radiation therapy (SBRT).MethodsWe made an exit-d…