458 Result(s)
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Article
A dual-satellite joint positioning method with improved CTSL for high-speed targets
High-precision space-based optical positioning contributes a lot to high-speed targets’ instantaneous and accurate tracking and trajectory prediction. However, because of the line-of-sight (LOS) calibrated err...
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Article
Surface plasmon resonance magnetic field sensor composed of the anti-resonant fiber with high sensitivity and wide detection range
On the heels of the continuous development of electromagnetic and wave technology, higher requirements have been put forward for the detection of environmental magnetic fields. Surface plasmon resonance (SPR),...
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Article
Solar-blind UV photodetectors based on α-Ga2O3 prepared by a two-step hydrothermal method
In this study, α-Ga2O3 nanorod arrays (NRAs) were grown using a simple and low-cost two-step hydrothermal method. Subsequently, a photoelectrochemical ultraviolet photodetector (PEC-UV PD) based on the α-Ga2O3 NR...
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Article
Nonlinear optical rectification in symmetric double-graded quantum wells dressed by non-resonant laser field under electric and magnetic fields
Nonlinear optical rectification (NOR) coefficients in symmetric double-graded quantum wells with different geometrical configurations under non-resonant laser field in the presence of electric and magnetic fie...
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Article
Analysis of polarization error of sensors based on michelson interferometer
In this paper, we establish a comprehensive model for polarization errors in sensors based on Michelson interferometers. An analytical model of polarization error is derived using the Jones matrix method and o...
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Article
Switchable and wavelength interval adjustable multi-wavelength actively Q-switched fiber laser based on EOM and improved Lyot filter
A switchable and wavelength interval adjustable multi-wavelength erbium-doped fiber actively Q-switched fiber laser based on EOM and improved Lyot filter is proposed. In the experiment, stable and switchable l...
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Article
Identification of slip parameters based on fiber Bragg grating and neural network
This paper proposes a flexible sensor made of fiber Bragg gratings (FBGs) package that can effectively recognize the direction and velocity of relative sliding on its surface. The measurement principle and str...
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Article
Broadband, polarization-insensitive and temperature-independent metamaterial absorber based on graphene hybrid water in terahertz domain
Water and graphene have been used separately to effectively broaden absorption bandwidth in the design of metamaterial absorbers (MAs). In this paper, a broad terahertz MA is presented, in which water and grap...
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Article
Three-band triangular linearly frequency-modulated continuous-wave microwave photonic radar based on the gain-switched DFB laser
A compact three-band symmetrical triangular linearly frequency-modulated (TLFM) continuous-wave radar based on the gain-switched DFB laser is proposed in this paper. By introducing the low central-frequency TL...
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Article
All-optical logic gates with multi-functionalities based on photonic crystals
In this paper, we have designed and simulated all-optical logic gates with multi-functionalities based on two-dimensional photonic crystals. All-optical logic gates such as AND, OR, XOR, NOR and NAND are desig...
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Article
Signal synchronization transmission within uncertain quantum network based on the differential–integral sliding mode technique
A new scheme is proposed for the synchronization transmission of the chaotic signals within a quantum network composed of the Dicke models with uncertain parameters. Considering that the chattering occurrence ...
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Article
Sensor and slow light based on plasmon-induced transparency in carbon nanotube rectangular split-ring resonator metamaterials
In this paper, by finite-difference-time-domain (FDTD) simulation, we numerically demonstrate a plasmon-induced transparency (PIT) effect based on a carbon nanotubes (CNT) metamaterial. The proposed CNT metama...
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Article
Focusing characteristics of space-variant quadratic phase modulated linearly polarized Bessel–Gaussian vortex beam
The focusing characteristics of the Bessel–Gaussian (BG) beam, characterized by a tailored space-variant quadratic (SQ) phase, are explored based on the principles of vector diffraction theory. The effects of ...
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Article
Continuous irradiance adjustment system design for solar simulators with wide range and high uniformity
To overcome the limitations of conventional solar simulators, which suffer from inadequate irradiance adjustment range, poor adjustment accuracy, serious arc displacement of the xenon lamp at the low power sup...
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Article
Design of Magnetic Shield and System Test of Strong Static Magnetic Field for ITER Radial X-Ray Camera Electronics
The intense magnetic field surrounding the electronic system in the ITER Tokamak necessitates the use of magnetic field shielding to protect electronic devices from failure. To ensure that the components insta...
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Article
Broadband fiber laser with selective and stable narrow linewidth wavelength over 68 nm selectable bandwidth
In this paper, a stabilized and wavelength-selective erbium-doped fiber (EDF) laser architecture with single-longitudinal-mode, high optical signal to noise ratio (OSNR), stability, wide tunability and narrowe...
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Article
Quantum multi-signature protocol based on Bell state
In this paper, we present a quantum multi-signature scheme based on Bell state. It allows n ( \(n>1\) ...
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Article
Flexible multi-band dual-chirped microwave waveform generator based on a recirculating frequency shifting loop
A photonic method for flexible multi-band dual-chirped microwave waveform generation is proposed using a recirculating frequency shifting loop (RFSL). The RFSL can be used as an optical frequency comb (OFC) ge...
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Article
Quantum optics and channel coding in imaging: advancements through deep learning
In our relentless pursuit of improving healthcare and elevating wellness standards, we have unveiled a groundbreaking approach that amalgamates the cutting-edge realms of quantum optics, Channel coding, artifi...
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Article
Application of dynamic simulation technology based on image detail enhancement algorithm in urban 3D landscape
With the acceleration of urban development and the increasing demand for beautiful cities, higher requirements have been put forward for the simulation technology of urban landscapes. Due to the complexity and...
