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Angle tunable terahertz band notch filter with single-band and dual-band switching characteristics based on metallic strip structures
Terahertz (THz) science and technology has broad application prospects in the next generation wireless communication syste...
Pseudospin topological phase transition induced by rotation operation in two-dimensional dielectric photonic crystal with C6 symmetry
Topology is an important branch of mathematics, focusing on the invariants of a system under continuous variations of othe...
Enhanced light absorption of kinked nanowire arrays for high-performance solar cells
Semiconductor nanowire (NW) array has been considered as one of the most promising solar cell structures due to the excell...
Speckle suppression of cylindrical holography using deterministic gradient update
Holography is an ideal three-dimensional (3D) display technology as it can obtain a 3D display by reconstructing the recor...
Broadband birefringence hollow-core anti-resonant optical fiber with elliptical air holes
As a fundamental attribute of light, polarization effects take an essential role in many optical applications, such as opt...
Hermitian operator of a Mach–Zehnder interferometer combined with parity detection and its applications
Optical interferometers have been widely used to estimated the slight phase changes in quantum metrology. For a Mach–Zehnd...
Investigation of tunable structural color based on hexagonal boron nitride
Color is one of the most important attributes of human vision [1]. About 85% of the information that enters the human brai...
Generation of off-axis phased Gaussian optical array along arbitrary curvilinear arrangement
Vortex beams, which possess orbital angular momentum (OAM), are gaining significant interest because of their potential ap...
A SiN antenna based on grating–waveguide–grating structure for unidirectional and uniform emission
Silicon-based optical phased arrays have received a lot of research due to their small size, high reliability, low cost, a...
Enhancement of near-infrared emissions of Nd3+: Al2O3 IR transparent ceramics co-doped with Zn2+
Rare earth (RE) ions doped Al2O3 transparent ceramics have been studied for decades for optical applications due to many e...
All-dielectric achiral etalon-based metasurface: Ability for glucose sensing
Chirality as useful and key aspects in molecular biology can be used for biosensing applications [1], [2], [3]. Due to the...
Methane and carbon dioxide mixed gas detection based on sphere–tube coupled photoacoustic cell
Mixed gas detection plays an important role in environmental protection, medical diagnosis, combustion analysis, industria...
Relative phase distribution and the precision of optical phase sensing in quantum metrology
The corpuscular nature of light imposes limits for the maximum possible precision in the estimation of a phase difference ...
A portable UAV-based laser-induced fluorescence lidar system for oil pollution and aquatic environment monitoring
With the rapid development of industry and transportation, oil has played an increasingly important role in modern civiliz...
Far-field phasing method based on deep learning for tiled-aperture coherent beam combination
Recent decades have seen continuous advances in ultra-fast lasers with outputs of up to 10 petawatts (PW) [1], [2], [3], b...
Double-pulse narrow-linewidth Pr:YLF laser with acousto-optic Q-switching and double Fabry–Perot etalon technology
Double-pulse narrow-linewidth lasers have the characteristics of outputting double pulses, narrow spectral line width, hig...
High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD
In manufacturing industry, there is an increasing demand for large-scale measuring instruments [1], [2], [3], [4], [5]. Th...
Behaviors of multiple pulsing in high power saturable-absorber mode-locked Yb:KGW laser
Femtosecond solid-state lasers (SSLs) based on various laser gain crystals, such as Ti:sapphire, Nd:YAG, Cr:forsterite, an...
Femtosecond laser drilling in superalloy with water-based magnetic assistance
With the development of laser technology, femtosecond laser has been developed. Because the peak power of femtosecond lase...
Propagation dynamics of modulated vortex beams in nonlocal nonlinear media
The nonlocal nonlinearity allows the refractive index of material at a particular point to be related the beam intensity a...
Competition of collimated ultraviolet lights generated by four-wave mixing process in Cs vapor
Lasers in the infrared (IR) band could be easily realized. In contrast, lasers in the blue and UV bands involve significan...
Dual-band perfect graphene absorber with an all-dielectric zero-contrast grating-based resonant cavity
Graphene has become an ideal two-dimensional material for high-performance optoelectronic devices due to its broad-spectru...
Switchable bi-functional metamaterial based on vanadium dioxide for broadband absorption and broadband polarization in terahertz band
A metamaterial is a kind of artificially designed sub-wavelength composite structure that has novel optical properties and...
3-bit switchable terahertz coding metasurface based on Dirac semimetals
THz waves, located in the transition region between macroelectronics and microphotonics, have many unique advantages, such...
Phase-change material assisted on-chip wavefront shaping for optical switching and beam splitting
Optical routing and signal processing devices are indispensable to meet the challenges of core-based transmission and proc...
A simple fiber optic magnetic field and current sensor with spectral interrogation
Optical fiber magnetic field and electric current sensors have been known for several decades and are based on the Faraday...
Microwave-photonic interferometer based on FLRD for simultaneous sensing of loss and temperature
Fiber loop ringdown (FLRD) has been widely used for the measurement of loss owing to the advantages of small size, light w...
Generation and beam shaping of THz radiation in an actively modulated nonlinear crystal
Broadband THz pulses can be generated by optical rectification of ultrashort visible or near-infrared laser pulses in a se...
A silicon TM mode multiplexer based on three waveguide directional coupler with subwavelength grating
For optical communication, the dimensions that can carry information include: wavelength, polarization, amplitude, phase, ...