452 hasil
Menampilkan 1–20 · 0,13 detik · RSS
International Journal of Optics
Scopus
ISSN 1687-9384 · Wiley · 452 artikel di indeks
-
Artikel Jurnal
Interferenceless Coded Aperture Correlation Holographic Super-Resolution Imaging With Structured Light Illumination
Interferenceless coded aperture correlation holographic (ICOACH) is a newly proposed nonscanning, wide-spectrum, 3D wide-field imaging technique for incoherent illumination in recent years and has demonstrated the potential for sizable applications in a variety of imaging fields. In this paper, we…
-
Artikel Jurnal
Broadband Near-Zero Flattened Dispersion in a Novel Hexagonal Photonic Crystal Fiber
A novel hexagonal photonic crystal fiber (PCF) design with broadband dispersion control has been proposed for use in optical communication systems. By optimizing a 1.7-μm hole diameter and 2.60-μm pitch, the PCF achieves near-zero flattened dispersion from 1400 nm to 1800 nm, with dispersion…
-
Artikel Jurnal
Tailoring the Optical Properties of CZO Thin Films Grown by Pulsed Spray-Pyrolysis
The present work analyzes the effect of Cu alloying in ZnO on the optical and structural properties of ZnO:Cu (CZO) thin films deposited by the pulsed spray-pyrolysis technique from molecular solutions. The study used XRD, SEM, EDX, Raman spectroscopy, and optical spectroscopy. The films are…
-
Artikel Jurnal
New Technology for Remote Synchronization Transmission of Signal Based on Laser Pattern as the Carrier
We find that considering the transverse effect, the intensity output of the ring-cavity laser can exhibit new dynamical characteristics, with its output evolution presenting symmetrized laser pattern. Moreover, it is highly sensitive to the initial value assigned to the system. On this basis, we…
-
Artikel Jurnal
An Intelligent Reconfigurable Graphene–VO2 Hybrid Terahertz Bandpass Filter Architecture for Differential Biomolecular Sensing and Machine Learning–Driven Analyte Characterization
A compact hybrid graphene–VO2 terahertz (THz) bandpass filter integrating reconfigurable operation, differential biosensing, and machine learning (ML)–based prediction is proposed and numerically investigated. The device consists of a symmetric dual-stepped-impedance resonator (SIR) fabricated on a…
-
Artikel Jurnal
PdSe2/MoS2 Heterostructure Photodetector for Polarization Imaging
In this work, we present a polarization-sensitive imaging photodetector based on a PdSe2/MoS2 van der Waals heterojunction. Capitalizing on the strong anisotropic optoelectronic characteristics of the heterostructure, the device exhibits exceptional polarization-resolved imaging capabilities across…
-
Artikel Jurnal
Research on an Infrared Hazard Gas Detection System Based on a Parallel Biped Walking Robot Using TDLAS-WMS Technique
Trace gas real-time detection in severe environments has been a challenge for traditional sensors. In this study, an infrared gas detection system has been developed for dangerous gas detection including CO and CH4. The detection system consists of a standalone instrument and a nonreflective gas…
-
Artikel Jurnal
Where Electrochemistry Meets Light: MXene Quantum Dots for Dual-Mode Ultrasensitive Ion Sensing
The ultrasensitive detection of ionic species is of critical importance for environmental monitoring, biomedical diagnostics, and industrial analysis, yet remains challenging due to the limitations of conventional sensing platforms. In recent years, MXene quantum dots (MQDs) have emerged as a new…
-
Artikel Jurnal
Classification of Salt–Alkali-Tolerant Rice Cultivars Using Hyperspectral Reflectance and Machine Learning
Aiming at the problems of low efficiency, heavy workload, long cycle, and destructiveness in traditional methods for distinguishing salt–alkali tolerance among different rice cultivars, this research proposes a classification method combining hyperspectral technology with machine learning…
-
Artikel Jurnal
Investigation of Structural, Morphological, and Topographical Properties of InGaN/Porous Silicon Heterostructure Prepared by the PLD Technique
This paper employed the pulsed laser deposition (PLD) technique to synthesize InGaN/porous silicon (InGaN/Psi). The Psi was synthesized by the laser-assisted photoelectrochemical etching (LAPECE) method. The thin film is synthesized using three wavelengths: 1064, 532, and 355 nm. The structural…
-
Artikel Jurnal
Optical Fiber Tip PDMS Fabry–Perot Cavity for Sensor Applications in Gases and Liquids
An optical fiber sensor with a Fabry–Perot cavity is described, in which a polydimethylsiloxane layer is bounded by two aluminum mirrors at the end of an optical fiber. The interference response of the sensor was evaluated in both the spectral and time domains. For the fabricated sensor…
-
Artikel Jurnal
Signal Performance Characterization of Visible Light Nonorthogonal Multiple Access With Integrated Sensing and Communication Network
This paper exploits the signal performance characterization of visible light nonorthogonal multiple access (VL-NOMA) for integrated sensing and communication (ISAC) network. The VL as a carrier uses light-emitting diode (LED) to broadcast data to multiple users. In conventional scenarios like…
-
Artikel Jurnal
A Review on Passively Mode-Locked Ultrafast Lasers: Mechanisms, Soliton Behavior, Stability, Emerging Materials, and Applications
This work presents an in-depth and unified exposition of the physics, mechanisms, and emerging trends governing passively mode-locked ultrafast lasers. It systematically reviews the fundamental principles of mode locking, emphasizing the role of both real saturable absorbers—such as SESAMs, quantum…
-
Artikel Jurnal
Research on Field of View Optimization Methods for Soller Slits in High-Performance X-Ray Detection
This study systematically optimized the geometric parameters of a Soller slit collimator to enhance X-ray detection performance, focusing on maximizing the photon count at the origin (N0) while minimizing the spatial spread, which is defined by the radial distance where the collection efficiency…
-
Artikel Jurnal
A Low Optical Absorption Loss Thin-Film Lithium Niobate Electro-Optic Modulator With a Sunken Electrode Structure
Electro-optic modulators based on thin-film lithium niobate (TFLN) are pivotal components in microwave photonic systems. A sunken electrode structure is proposed in this work to improve the device performance. Systematic simulations of the modulator’s modulation efficiency and RF characteristics…
-
Artikel Jurnal
Optical Transceiver Microsystem Based on Digital Prototyping and Optoelectronic Collaborative Simulation
In order to meet the urgent demand for high-speed and high-capacity data transmission in machine learning, large-scale simulation, high-performance computing, etc., we design and demonstrate an optical transceiver microsystem based on digital prototyping and optoelectronic collaborative simulation…
-
Artikel Jurnal
Improving the Resolution of Fluorescence Emission Optical Microscopy With Image Processing Algorithm
In this study, we present a novel method to enhance the resolution of fluorescence optical microscopy based on a fluorescence emission difference configuration. In the first stage, a subtraction technique with a small number of subtraction coefficients is introduced to improve spatial resolution…
-
Artikel Jurnal
Hyperspectral and 1D-CNN-Based Early Monitoring Study of Mite Infestation on Lycium barbarum Sprouts
Lycium barbarum sprouts, as a green food with significant development potential, are vulnerable to pests and diseases, particularly mite infestation that can cause leaf distortion and deformation, severely impacting yield and quality. Hyperspectral technology, with its exceptional spectral and…
-
Artikel Jurnal
High-Fidelity Continuous-Wave Terahertz Computed Tomography Based on Intensity Denoising Method
The terahertz wave is typically defined as ranging from 0.1 to 10 THz, and it is penetrating to nonpolar and nonmetallic materials, such as plastics, clothing, and bones. These characteristics have thrust terahertz imaging techniques into the limelight. As an effective imaging method, terahertz…
-
Artikel Jurnal
Extreme Nonlinear Optical Response From Al-Doped ZnO
As a direct consequence of the nonlinear optical response, high-harmonic generation (HHG) from zinc oxide (ZnO) doped with aluminum (Al) is investigated. Two main mechanisms lead to HHG from shallow donor impurity, interband, and intraband emission. Similar to gas phase, interband HHG is described…