Showing papers in "Optics Communications in 2019"

TL;DR: The proposed algorithm has a faster calculation speed compared with existing denoising algorithm, and recovers the fringe patterns with high quality, and may provide a solution to otherDenoising problems in the field of optics, such as hologram and speckle Denoising.

TL;DR: In this article, a bilayer wire-split-ring (WSR) structure chiral metamaterial (CMM) was proposed and investigated numerically for terahertz (THz) light.

TL;DR: In this paper, the authors proposed a hybrid RF/FSO-OAM based on multiple-input multiple-output (MIMO)/SMM using M-ary modified pulse position modulation (MPPM) and spatial PPM (SPPM) for potentially enhancing capacity in wireless communication systems.

TL;DR: In this article, a concave-shaped photonic crystal fiber (PCF) combined with square-channel using indium tin oxide (ITO) for surface plasmon resonance (SPR) sensing is proposed.

TL;DR: In this article, a triple-band graphene refractive index sensor with good angle-polarization tolerance was designed, which is composed of graphene elliptic-circular nanodisk resonators periodically arranged on a dielectric substrate.

TL;DR: In this article, a terahertz metamaterial based on electromagnetically induced transparency (EIT) was proposed for sensing with refractive index sensitivity of 962 GHz/RIU.

TL;DR: A fast object tracking technique based on SPI with an ultra-low sampling rate that is independent of imaging and provides an efficient strategy for remote sensing and biomedical applications is demonstrated.

TL;DR: In this article, a double-ring-core FMF was proposed for simultaneous 6-LP-mode weakly-coupled MDM transmission, which achieved a min | Δ n e f f | up to 1.49 × 10−3 while its maximum Δ n between core and cladding is only 0.828%.

TL;DR: In this paper, a D-type large core optical fiber sensor with high sensitivity and good stability based on the coupling of gold nanoparticles and Au film was proposed and demonstrated by simulation and experiments.

TL;DR: In this paper, the metal-insulator-metal (MIM) waveguide structure consisting of an M-type cavity and a baffle is proposed, which possesses a distinctly sharp asymmetric Fano resonance line.

TL;DR: This work experimentally demonstrates that given a known target, or even a light point-source, the other unknown object beyond the ME can be determined with only a single-shot camera image, even if the information of targets are mixed in the speckle pattern.

TL;DR: In this paper, the idea of an all-optical photonic crystal memory cell based on a cavity with a hysteresis feature as a function of two independent variables is introduced.

TL;DR: In this article, a polarization-insensitive triple-band metamaterial absorber (MMA) is proposed, which is composed of three-layer structure: metal-dielectric-metal.

TL;DR: A Digitized Transmission of 20 MHz LTE signal having 64 quadrature amplitude modulation over 70 Km of Standard Single Mode Fiber for broadband wireless signal transportation and distribution applications proves this is a cost and power effective solution for next generation wireless networks.

TL;DR: In this paper, a dual-parameter fiber-optic sensor based on fiber Bragg grating cascaded with Fabry-Perot interferometer (FPI) structure is described and demonstrated to measure temperature and gas pressure simultaneously.

TL;DR: According to the experimental and simulated results, the bidirectional WDM-FSO transmission can achieve 1000 m free space transmission length based on the obtained power sensitivity of each FSO signal.

TL;DR: In this paper, the dominant coherent structures of flames were successfully extracted using dynamic mode decomposition (DMD) which was also adopted to predict the flame evolutions, and the system was validated by reconstructing the 3D chemiluminescence distributions of flames produced by a swirl-stabilized burner.

TL;DR: This method not only can achieve multiple-image encryption with a small amount of data, but also can prevent information disclosure and has high security because it can resist the phase-retrieval attack.

TL;DR: In this paper, a phase unwrapping algorithm based on multiple Hilbert transform is proposed to reconstruct the micro-vibration quickly and easily, in which the Hilbert transform was performed once and three times for self-mixing fringes on different inclined directions, then the unwrapped phase was obtained and the micro vibration can be reconstructed under weak or even moderate feedback.

TL;DR: In this paper, a three-dimensional plasmonic wavelength demultiplexer is investigated using slit-and stub-type filters consisting of metal-insulator-metal waveguides.

TL;DR: In this paper, the authors implemented the MFE lens with concentric cylindrical multilayer and radially diverging gourd-shaped rods to cover the entire C-band in a single mode implementation.

TL;DR: In this article, a photonic approach to generate frequency and bandwidth multiplying dual-chirp microwave for application in dual-band radar system is proposed using an integrated dual-polarization quadrature phase shift keying (DP-QPSK) modulator.

TL;DR: In this article, the performance of different multiplexing methods (coherent superposition or incoherence superposition) and de-multiplexing method (2-D Dammann fork grating (DFG) and MPH) of vortex beams are discussed.

TL;DR: In this paper, a multi-physics axisymmetric two-dimensional (2D) model is presented to investigate the nanosecond laser ablation process of titanium at 1064 nm wavelength.

TL;DR: In this paper, a planar electromagnetically induced transparency (EIT) terahertz metamaterial capable of exhibiting refractive index sensing with high sensitivity was proposed.

TL;DR: In this article, the authors used paired nanoparticles with both the same and different radiuses to improve the photocurrent of an ultra-thin silicon solar cell and obtained results are applicable to various cell, thicknesses, and shapes of nanoparticles.

TL;DR: In this article, the authors investigate the propagation of self-similar optical solitons on a continuous-wave background through a non-centrosymmetric waveguide with second-and third-order nonlinearities.

TL;DR: In this article, a V-shape photonic crystal fiber (PCF) polarization filter based on surface plasmon resonance (SPR) effect is proposed, which can achieve good filtering effect in the communication band and is easy to integrate with existing optical fiber communication and sensing systems.

TL;DR: In this article, an in-line fiber Mach-Zehnder interferometer for refractive index (RI) sensing was proposed, and the interferometers were fabricated by cascading two peanut-shape structures in the single mode fiber using the commercial fusion splicer.