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Hybrid network with difficult–easy learning for concealed object detection in imbalanced terahertz image dataset
Hybrid network with difficult–easy learning for concealed object detection in imbalanced terahertz image dataset
Terahertz imaging technology has been widely used in security inspections due to its ability to detect various concealed h...
Study on the diffraction light field of two special beams through a cylindrical lens
Study on the diffraction light field of two special beams through a cylindrical lens
Cylindrical lens is irreplaceable in the field of beam manipulation, which can generate new types of light field by diffra...
Effect of MoS2 and (phosphorene, germanene, borophene) hybrid structure on the performance of an SPR biosensor for detection of bacteria
Effect of MoS2 and (phosphorene, germanene, borophene) hybrid structure on the performance of an SPR biosensor for detection of bacteria
In this paper, the effect of different structures and flakes of phosphorene (Ph), germanene (Ge), and borophene (B) sandwi...
Fundamental evaluation of the pseudo-3D perception of 2D aerial virtual images
Fundamental evaluation of the pseudo-3D perception of 2D aerial virtual images
In this paper, we revealed that the pseudo-3D perception of a 2D aerial image is increased by reducing the luminance and c...
Improvement in image gaps and viewing angle of space-saving compact aerial display
Improvement in image gaps and viewing angle of space-saving compact aerial display
Two technologies for improving image gaps and narrow viewing angle were applied to a space-saving compact aerial display w...
Effects of three wavelength-cut lenses on visual function in the photopic and mesopic conditions
Effects of three wavelength-cut lenses on visual function in the photopic and mesopic conditions
This study aimed to explore the impact of three wavelength-cut (TWC) lenses, which allowed 75% luminance transmittance whi...
Mask-based lensless face recognition system with dual-prior face restoration
Mask-based lensless face recognition system with dual-prior face restoration
Face recognition, a biometric technology that analyzes facial features to authenticate individuals’ identities, has ...
Ai-enabled efficient modulation classification in underwater OWC systems
Ai-enabled efficient modulation classification in underwater OWC systems
In this paper, we propose and experimentally demonstrate an artificial intelligence (AI)-enabled efficient modulation clas...
Orthogonal polarization dual-wavelength Nd: GdVO4 laser at 1341 nm and 1344 nm with 880 nm LD direct pumping
Orthogonal polarization dual-wavelength Nd: GdVO4 laser at 1341 nm and 1344 nm with 880 nm LD direct pumping
We report an orthogonal polarization dual-wavelength Nd:GdVO4 crystal laser with 880 nm LD directly pumping. By a...
Improved ternary composite ceramic phosphors for warm-white laser lighting
Improved ternary composite ceramic phosphors for warm-white laser lighting
The large thermal conductivity of phosphor materials is crucial for laser lighting. Since the laser beam for pumping is fo...
Design and analysis of parallel polarization-beam-splitter-based optical filter with adjustable channel spacing
Design and analysis of parallel polarization-beam-splitter-based optical filter with adjustable channel spacing
In this paper, a parallel polarization-beam-splitter-based fiber optic filter with adjustable channel spacing is proposed ...
Imaging distance of an aquatic image formed by an aquatic display obtained by paraxial approximation
Imaging distance of an aquatic image formed by an aquatic display obtained by paraxial approximation
Aquatic display, which forms a floating image in water without a screen, used in behavioral experiments of aquatic organis...
Analysis of sensory tests for visibility of blur-added and color-changed virtual characters for AR display
Analysis of sensory tests for visibility of blur-added and color-changed virtual characters for AR display
We conducted sensory test for visibility of blur-added and color-changed virtual characters and analyzed it to investigate...
A microring resonator full-duplex 5 × 5 optical routing switch based on ITO material
A microring resonator full-duplex 5 × 5 optical routing switch based on ITO material
Optical interconnection technology is the most promising solution for on-chip multi-core interconnection because of its ad...
High-speed blood flow measurement based on a continuous laser-assisted nonlinear photoacoustic
High-speed blood flow measurement based on a continuous laser-assisted nonlinear photoacoustic
Nonlinear photoacoustic-based methods for measuring high-speed blood flow velocity typically use a single-pulse laser or a...
Viewing zone of aerial hollow face illusion evoked by use a 3D object as a light source for AIRR optical system
Viewing zone of aerial hollow face illusion evoked by use a 3D object as a light source for AIRR optical system
An aerial 3D image formed by the use of a 3D-shaped light source gives a greater sense of reality compared to the...
Simulation on temperature rise using ring-resonator-type device for heat-assisted magnetic recording
Simulation on temperature rise using ring-resonator-type device for heat-assisted magnetic recording
Heat-assisted magnetic recording (HAMR) is a promising technology for improving the recording density of hard disk drives....
Study on pressure angle optimization for cam curve of continuous zoom system based on the particle swarm optimization
Study on pressure angle optimization for cam curve of continuous zoom system based on the particle swarm optimization
In this paper, we proposed a method for optimizing the pressure angle of the cam curve in a zoom system using Particle Swa...
Method of acquiring shapes using motion capture of aerial images formed by large acrylic panels
Method of acquiring shapes using motion capture of aerial images formed by large acrylic panels
This study proposes the method of measuring 3D object shapes in an immersive space using a motion capture system. We repor...
Detection of soybean mildew infection at early stage based on optical coherence tomography and deep learning methods
Detection of soybean mildew infection at early stage based on optical coherence tomography and deep learning methods
Soybean can be easily contaminated by Aspergillus flavus which can generate toxigenic and endanger human life and health. ...
Reducing thickness of long-distance aerial display system in AIRR using Fresnel lens
Reducing thickness of long-distance aerial display system in AIRR using Fresnel lens
Aerial displays for providing road information require long-distance image formation and a compact installation space. Thi...
Analysis of floating distance of arc 3D display with respect to inclination angle of substrate
Analysis of floating distance of arc 3D display with respect to inclination angle of substrate
We derive an equation that enables to get the floating distance of floating images of an arc 3D display by the radius of t...
Design of graded-index-type photonic crystal fiber with uniform air hole diameter and its application to collimator for single-mode photonic crystal fiber
Design of graded-index-type photonic crystal fiber with uniform air hole diameter and its application to collimator for single-mode photonic crystal fiber
A graded-index (GI)-type photonic crystal fiber (PCF) that has an α-power effective refractive index profile operates...
Lensless inline holographic Mueller matrix imaging
Lensless inline holographic Mueller matrix imaging
With the advantages of a large field of view, portability, and cost-effectiveness, lensless imaging has been applied widel...
Two-wavelength digital holography using frequency-modulated continuous-wave technique for multiplexing in the time–frequency domain
Two-wavelength digital holography using frequency-modulated continuous-wave technique for multiplexing in the time–frequency domain
In this study, we have proposed a digital holographic technique in which the frequency-modulated continuous-wave technique...
Research on coherent tracking technology based on signal beam nutation
Research on coherent tracking technology based on signal beam nutation
The technology of coherent tracking based on signal beam nutation is presented in the paper. The working principle and adv...
Reflective ultra-wideband dual-band linear-to-circular polarization converter based on metasurface
Reflective ultra-wideband dual-band linear-to-circular polarization converter based on metasurface
A dual-frequency ultra-wideband line-to-circular polarization converter based on metasurfaces is proposed in this paper. T...
Efficient MoS2-based passively Q-switched Nd:GGG laser at 1.4 μm under in band pumping
Efficient MoS2-based passively Q-switched Nd:GGG laser at 1.4 μm under in band pumping
We demonstrated an efficient MoS2-based eye-safe passively Q-switched Nd:GGG laser under 880 nm LD pumping. The m...
A relative humidity sensor based on 2-core fiber Michelson interferometer with end-face aluminium mirror
A relative humidity sensor based on 2-core fiber Michelson interferometer with end-face aluminium mirror
A relative humidity (RH) sensor based on in-fiber Michelson interferometer (MI) is proposed, which consists of a short pie...
A comparative evaluation of 2-D Hilbert transforms and 2-D continuous wavelet transforms for robust phase extraction in complex fringe patterns
A comparative evaluation of 2-D Hilbert transforms and 2-D continuous wavelet transforms for robust phase extraction in complex fringe patterns
Interferometric techniques are widely used to obtain the real-time phenomena in a majority of applications considering its...
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