Shuaiyi Zhang
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View article: Fabry–Pérot microcavity-integrated solid-state laser for wavelength-selective passive Q-switching
Fabry–Pérot microcavity-integrated solid-state laser for wavelength-selective passive Q-switching Open
Wavelength tailoring in solid-state lasers faces significant challenges arising from gain bandwidth limitations, thermal management constraints, and the inherent trade-off between intracavity wavelength control and system compactness. We d…
View article: Low-threshold and stable coherent random lasing based on mesoporous silica nanoparticles in a capillary glass tube
Low-threshold and stable coherent random lasing based on mesoporous silica nanoparticles in a capillary glass tube Open
Random lasers (RLs) depending on disordered feedback mechanisms, offer unique advantages in low spatial coherence and miniaturization but face challenges in achieving low thresholds and stability. This study demonstrates a mesoporous silic…
View article: Enhanced 2.7 µm wavelength sub-80 ns pulse generation via iron-chromium co-doped ZnS polycrystalline
Enhanced 2.7 µm wavelength sub-80 ns pulse generation via iron-chromium co-doped ZnS polycrystalline Open
Zinc-sulfide (ZnS) polycrystalline co-doped with Cr 2+ and Fe 2+ ions, when used as a saturable absorber (SA), exhibits a longer recovery time and a larger excited state absorption cross-section compared to Fe:ZnS polycrystalline, due to t…
View article: Quad-wavelength synchronously mode-locked bulk laser based on heterogeneous composite crystal with Fabry-Perot resonant structure
Quad-wavelength synchronously mode-locked bulk laser based on heterogeneous composite crystal with Fabry-Perot resonant structure Open
Wave mixing (WM) techniques are crucial for applications such as supercontinuum generation, frequency conversion, and high-dimensional quantum encoding. However, their efficiency is often limited by complex phase-matching requirements, and…
View article: Widely Wavelength Tunable and Narrow-Linewidth Er:Yap Laser in 2.7-2.9 Μm Spectral Region
Widely Wavelength Tunable and Narrow-Linewidth Er:Yap Laser in 2.7-2.9 Μm Spectral Region Open
View article: Investigating high-energy Hermite–Gaussian and vortex laser generation in alexandrite
Investigating high-energy Hermite–Gaussian and vortex laser generation in alexandrite Open
This paper presents an investigation of the secondary saturation characteristics of a HfTe 2 saturable absorber. Pulse energies of 5.85 and 7.4 mJ were demonstrated with a high-order Hermite–Gaussian (HG) laser and a vortex laser, respecti…
View article: B-AsP as the saturable absorber for a mid-infrared 3 µm nanosecond laser
B-AsP as the saturable absorber for a mid-infrared 3 µm nanosecond laser Open
Black arsenic-phosphorus (B-AsP) has better stability than traditional black phosphorus (BP), and it was utilized to modulate a mid-infrared (mid-IR) 3 µm laser for what we believe to be the first time. The linear and nonlinear absorption …
View article: 638-nm laser-diode pumped alexandrite femtosecond laser passively mode-locked by single-walled carbon nanotubes
638-nm laser-diode pumped alexandrite femtosecond laser passively mode-locked by single-walled carbon nanotubes Open
A passively mode-locked alexandrite laser was developed with a single-walled carbon nanotubes (SWCNTs) saturable absorber (SA), which was pumped by a 638 nm red laser. After using a pair of prisms for dispersion compensation, the narrowest…
View article: Nonlinear optical response of strain-mediated gallium arsenide microwire in the near-infrared region
Nonlinear optical response of strain-mediated gallium arsenide microwire in the near-infrared region Open
Gallium arsenide (GaAs) semiconductor wires have emerged as potent candidates for nonlinear optical devices, necessitating bandgap engineering for an expanded operational wavelength range. We report the successful growth of strain-mediated…
View article: Oxygen-doped NiCoP derived from Ni-MOFs for high performance asymmetric supercapacitor
Oxygen-doped NiCoP derived from Ni-MOFs for high performance asymmetric supercapacitor Open
Oxygen doping strategy is one of the most effective methods to improve the electrochemical properties of nickel–cobalt phosphide (NiCoP)-based capacitors by adjusting its inherent electronic structure. In this paper, O-doped NiCoP microsph…
View article: Characteristics and Geological Impact Factors of Coalbed Methane Production in the Taiyuan Formation of the Gujiao Block
Characteristics and Geological Impact Factors of Coalbed Methane Production in the Taiyuan Formation of the Gujiao Block Open
The coalbed methane resources of the Gujiao Block are abundant, and the exploration degree is high. The gas production and water production of different CBM (coalbed methane) wells vary greatly. The average gas production of CBM wells in t…
View article: Oxygen-Doped Nicop Derived from Ni-Mofs for High Performance Asymmetric Supercapacitor
Oxygen-Doped Nicop Derived from Ni-Mofs for High Performance Asymmetric Supercapacitor Open
View article: Mid-Infrared Dual-Wavelength Passively Q-Switched Er: SrF2 Laser by CsPbCl3 Quantum Dots Absorber
Mid-Infrared Dual-Wavelength Passively Q-Switched Er: SrF2 Laser by CsPbCl3 Quantum Dots Absorber Open
A passively Q-switched compact dual-wavelength Er: SrF2 laser, operating at a 2729.73 nm and 2747.2 nm wavelength, was demonstrated by utilizing CsPbCl3 quantum dots (QDs) as a saturable absorber (SA). The maximum average output power with…
View article: Nonlinear optical properties of graphdiyne/graphene van der Waals heterostructure for laser modulations
Nonlinear optical properties of graphdiyne/graphene van der Waals heterostructure for laser modulations Open
The construction of van der Waals heterostructures (vdWHs) is emerging as a promising approach for creating new materials with exotic functionalities and extraordinary optical properties in the field of laser modulations. However, the comp…
View article: Passively Q-switched and Q-switched mode-locked Nd:Lu<sub>0.15</sub>Y<sub>0.85</sub>VO<sub>4</sub> lasers at 1.34 µm with a nickel-cobalt layered double hydroxide saturable absorber
Passively Q-switched and Q-switched mode-locked Nd:Lu<sub>0.15</sub>Y<sub>0.85</sub>VO<sub>4</sub> lasers at 1.34 µm with a nickel-cobalt layered double hydroxide saturable absorber Open
A nickel-cobalt (NiCo) layered double hydroxide (LDH) saturable absorber (SA) was successfully fabricated and utilized as a passively mode-locked (PML) laser modulator for the first time. We successfully investigated a 1.34 µm passively Q-…
View article: Nickel-vanadium layered double hydroxide nanosheets as the saturableabsorber for a passively Q-switched 2 µm solid-state laser
Nickel-vanadium layered double hydroxide nanosheets as the saturableabsorber for a passively Q-switched 2 µm solid-state laser Open
Nickel-vanadium (NiV)-layered double hydroxide (LDH) was fabricated into a novel saturable absorber (SA) by the liquid phase exfoliation method and utilized as the laser modulator for the first time, to our best knowledge. We investigated …
View article: Robust simultaneous multiwavelength bulk laser based on Yb:LaMgB<sub>5</sub>O<sub>10</sub> crystal: from continuous wave to ultrashort pulses
Robust simultaneous multiwavelength bulk laser based on Yb:LaMgB<sub>5</sub>O<sub>10</sub> crystal: from continuous wave to ultrashort pulses Open
We present a robust simultaneous multiwavelength bulk laser based on Yb:LaMgB 5 O 10 (Yb:LMB) crystal, including its continuous-wave (CW) and ultrafast pulsed regimes. CW dual wavelengths at 1077 nm and 1091 nm with an average output power…
View article: Solidly mounted resonator sensor for biomolecule detections
Solidly mounted resonator sensor for biomolecule detections Open
We report the fabrication of a solidly mounted resonator (SMR) that can also function as a sensor for biological molecules.
View article: Cascade-Gain-Switching for Generating 3.5-$\mu$m Nanosecond Pulses From Monolithic Fiber Lasers
Cascade-Gain-Switching for Generating 3.5-$\mu$m Nanosecond Pulses From Monolithic Fiber Lasers Open
We propose a novel laser configuration that can output 3.5-m nanosecond laser pulses based on a simple and monolithic fiber structure. Cascade-gain-switching (CGS) converts the wavelength of nanosecond pulses from 1.55 to 3.5 m by two succ…
View article: WSe<sub>2</sub> as a saturable absorber for a passively Q-switched Ho,Pr:LLF laser at 295 µm
WSe<sub>2</sub> as a saturable absorber for a passively Q-switched Ho,Pr:LLF laser at 295 µm Open
Multilayer WSe2 films were prepared by the liquid-phase exfoliation method and dispersed onto a YAG substrate. The obtained WSe2-SA was used to investigate a passively Q-switched Ho,Pr:LLF laser at 2.95 µm. Under an absorbed pump power of …
View article: Exploring the mode-locking laser performance of Yb:LaMgB_5O_10 crystal
Exploring the mode-locking laser performance of Yb:LaMgB_5O_10 crystal Open
The spectral properties of 5 at.% doped Yb:LaMgB5O10 (Yb:LMB) crystal were presented and discussed in detail. The large absorption and emission cross sections, broad emission spectral lines, and considerably good thermal conductivity indic…
View article: Cascade-gain-switching hybrid-pumping for generating 3.5-um nanosecond pulses from monolithic fiber lasers
Cascade-gain-switching hybrid-pumping for generating 3.5-um nanosecond pulses from monolithic fiber lasers Open
We propose a new laser configuration that can output 3.5-um nanosecond pulses from a monolithic fiber structure. We employ cascade-gain-switching, which successively converts the wavelength of nanosecond pulses from 1.55 um to 1.97 um to 3…
View article: Cascade-gain-switching for generating 3.5-um nanosecond pulses from monolithic low-cost fiber lasers
Cascade-gain-switching for generating 3.5-um nanosecond pulses from monolithic low-cost fiber lasers Open
We propose a novel laser configuration that can output 3.5-$μ$m nanosecond laser pulses based on a simple and monolithic fiber structure. Cascade-gain-switching, which converts the wavelength of nanosecond pulses from 1.55 $μ$m to 3.5 $μ$m…
View article: Passively Q-Switched Ho,Pr:LiLuF4 Laser at 2.95 μm Using MoSe2
Passively Q-Switched Ho,Pr:LiLuF4 Laser at 2.95 μm Using MoSe2 Open
In this letter, we report a diode-end-pumped continuous wave (CW) and passively Q-switched Ho,Pr:LLF laser at 2.95 μm. A maximum CW output power of 98 mW was achieved. The highest output power of 58 mW was radiated with a pulse duration of…
View article: Passively Q-switched Ho,Pr:LiLuF_4 bulk laser at 295 μm using WS_2 saturable absorbers
Passively Q-switched Ho,Pr:LiLuF_4 bulk laser at 295 μm using WS_2 saturable absorbers Open
We demonstrate a passively Q-switched Ho, Pr: LiLuF4 laser at 2.95 mu m using a WS2 saturable absorber (SA). A shortest pulse width of 654 ns was achieved with an average output power of 82 mW and the repetition rate of 90.4 kHz at T = 2%.…
View article: Passively Q-switched Ho,Pr:LiLuF_4 laser with graphitic carbon nitride nanosheet film
Passively Q-switched Ho,Pr:LiLuF_4 laser with graphitic carbon nitride nanosheet film Open
A few-layer graphitic carbon nitride (g-CN) nanosheet film on an yttrium aluminum garnet substrate was fabricated and employed as saturable absorber for a passively Q-switched Ho,Pr:LiLuF4 laser at 2.95 μm. Under an absorbed pum…
View article: Passively Q-Switched Er:LuAG Laser at 1.65 μm Using MoS2 and WS2 Saturable Absorbers
Passively Q-Switched Er:LuAG Laser at 1.65 μm Using MoS2 and WS2 Saturable Absorbers Open
We describe passively Q-switched Er:LuAG laser characteristics at 1.65 μm for the first time, with MoS2 and WS2 as the saturable absorber, respectively. The saturable absorbers were both prepared with the liquid phase…
View article: Inband pumped passively Q-switched Er:YAG laser at 1645 nm using WS2
Inband pumped passively Q-switched Er:YAG laser at 1645 nm using WS2 Open
View article: Dynamic Experimental Investigation on the Volatilization Behavior of Lead and Cadmium in the Simulated Municipal Solid Waste (MSW) Influenced by Sulfur Compounds during Incineration
Dynamic Experimental Investigation on the Volatilization Behavior of Lead and Cadmium in the Simulated Municipal Solid Waste (MSW) Influenced by Sulfur Compounds during Incineration Open
In China, coal, often with a high level of sulfur, is always mixed with municipal solid waste (MSW) in waste incineration plants due to the low heating value and high moisture content of MSW. The influence of sulfur compounds on the volati…
View article: Theoretical Characterization of the Ultra-Broadband Gain Spectra at $\sim$1600–2100 nm From Thulium-Doped Fiber Amplifiers
Theoretical Characterization of the Ultra-Broadband Gain Spectra at $\sim$1600–2100 nm From Thulium-Doped Fiber Amplifiers Open
In this paper, we present the theoretical modeling and characterization of the gain spectra at 1600–2100 nm from thulium-doped fiber amplifiers (TDFAs) for the first time. Our theoretical model was validated through the comparison with the…