-
521
High Capacity Steganography via Optical Phase-Encoding and Transport of Intensity Equation
Published 2021-01-01“…However, in this work, the high capacity could be attained while the imperceptibility is well preserved based on the phase-encoding and TIE method. As the steganography is applied mainly on the digital media which are transmitted through the Internet, the optical experiments are not essential in this situation, and we only provide the simulation results to verify the validity and feasibility of our method.…”
Get full text
Article -
522
Study of Growth, EDAX, Optical properties and Surface Morphology of Zinc Tartrate Crystals
Published 2012-12-01“…A result of the UV-Visible spectroscopy confirms nonlinear optical property of the crystals.…”
Get full text
Article -
523
Orbital angular momentum beamforming techniques for indoor multiuser optical wireless communications
Published 2024-12-01“…The orthogonality characteristics of orbital angular momentum (OAM) can provide a new degree of freedom for optical wireless communication (OWC) systems. By transmitting multiple different orders of OAM states within a single beam, multiple data channels can be carried to the end users simultaneously. …”
Get full text
Article -
524
Non-Line-of-Sight Optical Camera Communication in a Heterogeneous Reflective Background
Published 2019-01-01“…The experimental results obtained after using a self-built NLOS OCC system demonstrated a significant improvement in the bit error rate when the proposed OCC signal recovery method was used for different distances between a smartphone and a heterogeneous reflective background.…”
Get full text
Article -
525
Study of the Effect of Berry Paper Mulberry on Optical Properties of Poly Methyl Methacrylate
Published 2014-06-01“…The samples of composites were prepared using casting method .The Berry Paper Mulberry (BPM) was added by different concentrations are (0, 2, 4 and 6)wt.%. …”
Get full text
Article -
526
Optical Frequency Sweeping Nonlinearity Measurement Based on a Calibration-free MZI
Published 2024-12-01“…This paper proposes a calibration-free MZI for measuring optical frequency sweeping nonlinearity, which involves alternately inserting two short polarization-maintaining fibers with different delays into one arm of an MZI, and after two rounds of beat collection, the optical frequency sweep curve of the light source is accurately measured for nonlinearity evaluation. …”
Get full text
Article -
527
Experimental Study of Random Secret Key Extraction From Atmospheric Optical Channels
Published 2025-01-01“…Based on these distribution parameters, a theoretical model of key capacity was constructed. The Monte Carlo method was used to simulate the secret key extraction rates under different turbulence intensities and different probability distribution models. …”
Get full text
Article -
528
Measuring Optical Scattering in Relation to Coatings on Crystalline X-Ray Scintillator Screens
Published 2025-06-01“…In this study, a measurement method for determining optical scattering in scintillators is presented with the aim of further developing correction algorithms. …”
Get full text
Article -
529
Random Emission and Control of Whispering Gallery Mode Using Flexible Optical Fiber
Published 2025-01-01“…This paper proposes a method for generating and controlling WGM lasers based on the design of a flexible optical fiber array structure. …”
Get full text
Article -
530
Underwater Wireless Laser-Based Communications Using Optical Phased Array Antennas
Published 2023-01-01“…An underwater optical wireless communication system concept based on optical phased array antennas is presented. …”
Get full text
Article -
531
Design and studying the effect of Polepiece shape on the magnetic and optical properties of the unipolar lens
Published 2023-01-01“… The investigation of a study of each design included the calculation of its axial magnetic field the magnetization of the lens in addition to the magnetic flux density using Finite Element Method (FEM) at three different values of current density (σ = 2,4 and 6 A/mm2). …”
Get full text
Article -
532
Deconvolution of optical spectra distorted by random noise using an artificial immune system
Published 2018-03-01Get full text
Article -
533
Design of Encoding Algorithm for Underwater Wireless Optical Communication Based on Spinal Code
Published 2025-03-01“…The marine environment is complex and variable, with the absorption and scattering effects of seawater and turbulence causing significant attenuation of received optical signals and introducing random jitter, which limits the communication range and stability of underwater wireless optical communication systems. …”
Get full text
Article -
534
Simulation Analysis of Temperature Field of Optical Fiber Composite Overhead Ground Wire
Published 2019-10-01“…The optical fiber composite overhead ground wire (OPGW) has been widely used in high voltage transmission lines. …”
Get full text
Article -
535
Interference of Light in a Michelson-Morley Interferometer: A Quantum Optical Approach
Published 2012-01-01“…A similar consideration for laser pulses, in terms of coherent states, leads to a different response in the detector. The MMI experimental setup is therefore an example of an optical device where one, in terms of intensity measurements, can exhibit the difference between classical and quantum-mechanical light.…”
Get full text
Article -
536
Convolutional neural network analysis of optical texture patterns in liquid-crystal skyrmions
Published 2025-03-01“…Abstract Liquid crystals are known for their optical birefringence, a property that gives rise to intricate patterns and colors when viewed in a microscope between crossed polarisers. …”
Get full text
Article -
537
Preparation and Optical Properties Characterization of PMMA/ZIF-8 Mixed Matrix Membrane
Published 2025-06-01“…To explore the potential applications of polymer/MOF MMMs in optics and optical waveguide devices, it is essential to conduct an in-depth investigation of their optical properties.…”
Get full text
Article -
538
Real-Time Optical Spectrum Fourier Transform With Time–Bandwidth Product Compression
Published 2018-01-01“…The key feature of this paper is that it is the first time to our knowledge to carry out the Fourier transformation of an optical spectrum with TBP compression. In addition, since the dispersive delay line could be programmable with high resolution, this technique is adaptable for different optical spectra and realizable for a reconfigurable TBP compression ratio. …”
Get full text
Article -
539
Application of the Optical Fiber Diameter Analyzer for Assessing Cotton Fiber Ribbon Width
Published 2024-12-01“…For this reason, the Textile Industry has sought a rapid, accurate, and reliable instrument to determine fiber fineness. Recently, the Optical Fiber Diameter Analyzer (OFDA) was introduced for rapid and precise evaluation of the diameter of different types of fibers. …”
Get full text
Article -
540
Electrochemical and Optical Microbiological Testing: a Comparative Study on Properties of Essential Oils
Published 2020-12-01Get full text
Article