Showing papers in "Optics Communications in 2014"

TL;DR: In this paper, reported measured measured values of the third-order nonlinear optical susceptibility χð3Þ of bulk gold were analyzed and the authors ascribe this behavior to the fact that the first two processes respond only to instantaneous nonlinearities, whereas the nonlinear refractive index has a contribution from the much stronger but much slower Fermi-smearing mechanism, which has a response time of the order of picoseconds.

TL;DR: In this article, a surface plasmon resonance (SPR) sensor based on a single mode optical fiber with six air holes is proposed, where a thin gold film and a TiO2 film are deposited on the walls of air holes.

TL;DR: In this article, the gallium arsenide (GaAs) material system has been used for the manipulation of single-photon and twophoton states of light, with a visibility of 94.9 ± 1.3% and 84.4± 1.5% respectively.

TL;DR: In this paper, a new configuration of all-optical logic gates based on two-dimensional (2D) square lattice photonic crystals (PCs) composed of silicon (Si) rods in Silica (SiO 2 ).

TL;DR: In this paper, it was demonstrated that the Kerr frequency comb generation described by coupled mode equations can be numerically simulated using Fast Fourier Transform methods, resulting in orders of magnitude improvements in the computation time.

TL;DR: In this paper, the absorption in a sandwich model of absorber metamaterial (MM) consisting of periodic metallic dishes at the front and metallic plane at the back, separated by dielectric substrate was investigated.

TL;DR: In this paper, the authors report the design, characterization and experimental verification of a perfect metamaterial absorber (MA) based on rings and cross wires (RCWs) configurations that operate in the microwave regime.

TL;DR: The proposed logic gate in a two-dimensional photonic crystal based on multi-mode interference has the potential to constitute photonic integrated components that will be used in all-optical signal processing, photonic computing and all- optical networks.

TL;DR: In this paper, the optical switching phenomena has been studied and its efficient application to construct the fulladder/subtractor (A/S) has been projected and the mathematical description of proposed device and thereafter compilation using MATLAB.

TL;DR: In this paper, the least square fit method was used to calculate the Judd-Ofelt (J-O) intensity parameters of Niobium containing tellurium calcium zinc borate (TCZNB) glasses.

TL;DR: In this paper, the authors present the design and characterization of a silicon PN junction traveling-wave Mach-Zehnder modulator near 1550-nm wavelength, which shows low modulation power of 640-fJ/bit at 40-Gb/s with a 1.6-V pp differential drive and 0-V DC bias.

TL;DR: In this paper, three types of waveguides (strip, rib and slot) are investigated on their geometrical dependence of evanescent-field ratio (EFR) and propagation loss to serve as the proposed gas sensor.

TL;DR: This article reports several examples of photonic-crystal nanocavity devices that exhibit record low consumption energy/power and indicates that current technology enables to integrate a large number of various wavelength-sized photonic devices with extremely low energy consumption, which will lead to fJ/bit-level optical communication in a chip.

TL;DR: In this article, a photonic backside texture combining periodic gratings and a distributed Bragg reflector (DBR) was proposed for light trapping in thin-film silicon solar cells using photonic crystal (PC) based structures.

TL;DR: In this paper, the authors report the demonstration of a GHz-speed LiNbO3 modulator that uses an amorphous Silicon waveguide to strongly confine light and demonstrate its performance.

TL;DR: In this article, a curvature sensor based on two cascading abrupt-tapers modal interferometers in a single mode fiber (SMF) is proposed and experimentally demonstrated.

TL;DR: The developed technique computes the point spread functions (PSF) of the source images, artificially blurred the images by convolving them with the estimated PSFs, and constructs an all-in-focus image of the scene by gathering the sharpest pixels of thesource images.

TL;DR: In this article, an efficient scheme for W state and cluster state generation based on the hybrid-system where nitrogen-vacancy centers are coupled to microcavities is presented.

TL;DR: In this paper, a two-dimensional nanoscale structure for sensing which consists of a metal-insulator-metal (MIM) waveguide with a defect, is designed and numerically simulated by using the finite element method (FEM).

TL;DR: The experiment results show that the proposed symbol synchronization based on training sequence (TS) has a low complexity and high accuracy even at a sampling frequency offset (SFO) of 5000-ppm.

TL;DR: In this paper, a combination of Quantum Genetic Algorithm (QGA) and Hartree-Fock-Roothaan (HFR) method was used to estimate the optical absorption coefficients of In,GaN/GaN spherical quantum dot.

TL;DR: In this article, a plasmonic waveguide system using a 2-dimensional finite element method was investigated, which consists of a metal-insulator-metal waveguide coupled with a stub resonator and a baffle.

TL;DR: In this article, the authors reported theoretical investigation of controlling the optical bistability and optical multistability in a GaAs quantum well inside a unidirectional ring cavity.

TL;DR: In this article, a circuit analog approach to integrate graphene and metamaterial in electromagnetic wave absorber design is proposed, and the operating frequency can be varied in terahertz frequency, indicating the potential applications of the GM absorber in sensors, modulators and filters.

TL;DR: In this paper, the authors experimentally implement the spatial shape modeling of non-iffracting optical beams via computer generated holograms reconstructed optically by spatial light modulators, and the results reported here are an experimental confirmation of the so-called Frozen Wave method, developed a few years ago.

TL;DR: The approach employs a filter bank of space-variant correlation filters which adapt their parameters accordingly with local statistics of the observed scene in each frame to track the position and orientation of a moving target in nonuniformly illuminated and noisy scenes.

TL;DR: In this paper, a two-dimensional birefringence distribution measurement system with a sampling rate of 1.3MHz is proposed. And a polarization image sensor is developed as core device of the system, which is composed of a pixelated polarizer array made from photonic crystal and a parallel read out circuit with a multi-channel analog to digital converter specialized for 2D polarization detection.

TL;DR: Based on the physical significance of intrinsic mode functions (IMFs) and the noise component removed from the empirical mode decomposition (EMD) method, the denoising process of the lidar (CE370-2, Cimel) backscattering signal is analyzed in detail.

TL;DR: This paper derived the closed form expressions for estimation of the average bit error rate (BER) and outage probability, which are vital system performance metrics, and results are shown considering different practical cases.

TL;DR: The proposed optical clocked D flip-flop is implemented using the OptiBPM software for the proper verification of the discussed schemes and its implementation using the MATLAB simulation result.