Journal of Optics and Photonics Research

Accurate prediction of the elastic properties of chalcogenide glasses (ChGs) remains a long-standing challenge due to the structural complexity of amorphous networks and the limited availability of reliable mechanical measurements. In this work, we develop a set of numerical estimator algorithms capable of predicting Poisson's ratio, Young's modulus, the Bulk modulus, and the Shear modulus of a C…

Work is reported on thermal-induced redshifts of quantum particle plasmon. The redshifts are predicted to be caused indirectly by the quantum size effects. The particles are enlarged when temperature increases, and consequently, quantum size effects modify the plasmon but not the band structure. It has been modeled for metallic quantum particles. The results are also instructive to other quantum …

Work is reported on optical antennas of complex molecules. Optical antennas of a nanometric particle are widely considered for light relays in various on-chip applications. An appealing candidate for an optical antenna is a complex molecule, for example, a huge cell containing a few hundred atoms. The optical properties, such as the radiation patterns, of the antennas may be optimized. The optimi…

Underwater wireless optical communication (UWOC) often suffers from channel-induced bit errors that degrade adaptive threshold detection, particularly due to dynamic turbidity conditions. Standard approaches of applying mitigation techniques may improve the link performance to an extent. In this study, we have incorporated an integrated approach based on machine learning (ML) into the UWOC system…

This study outlines the low-cost synthesis of copper-doped zinc oxide (Cu:ZnO) thin films using a chemical bath deposition method performed at 50 °C. A detailed investigation of their structural, optical, and electrical properties was conducted. X-ray diffraction confirmed the successful integration of copper within the ZnO lattice, resulting in a hexagonal Wurtzite structure and an average cryst…

This study investigates the optical and dielectric properties of nitrile butadiene rubber (NBR) reinforced with varying concentrations of N220 carbon black (CB). Ultraviolet (UV)–visible spectroscopy, in the range of 200–800 nm, was used. The optical spectrum showed a high absorption peak at approximately 220 nm, indicating that the material is suitable as a strong absorber of ultraviolet radiati…

We report the calculation of beginning-of-life and end-of-life (EOL) optical signal-to-noise ratio (OSNR) margins in designs of 10,000 km terrestrial and subsea Pb/s capacity all-optical (without O-E-O regeneration) dense wavelength division multiplexed lightwave systems in the 2000 nm band. Our margin analysis follows the OSNR budget tables originally designed for 1550 nm subsea lightwave transm…

Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease that primarily affects the joints and can cause severe deformities, progressive destruction of joint structures, and significant functional impact. Although several mechanisms are known, the etiology is multifactorial and three times more women than men are affected. In addition to the joints, the disease can affect other syst…

In this communication, it is presented the concept of optics based on Core-shell architectures controlling the nanoscale and beyond. It is demonstrated how these types of architectures can be designed, from prototyping to synthesis, using colloidal and laser-based techniques. This particular nanoarchitecture was presented as a fundamental structure that can be tuned as needed through the use of v…

On-chip silicon photonic chips are critical in various applications including chip-to-chip communication, sensing, and near-eye display technologies, but they all face significant challenges in efficiently coupling light sources onto the chip. This study introduces a design adopting colloidal quantum dot light-emitting diode (QLED) as an on-chip light source coupled with optimized Ag reflectors b…

Research on eye lens dosimetry for radiation workers has increased after the 2012 International Commission on Radiological Protection 118 update on eye lens dose limits, while corneal dosimetry has remained underexplored due to historical focus and measurement challenges. This study employed a high-resolution digital eye phantom in Monte Carlo simulations to estimate corneal and lens doses for nu…

This study aimed to dynamically control the optical dispersion properties of water-filled photonic crystal fibers (PCFs) by adjusting their temperature and the wavelength of the applied pulse (0.8–1.5) nm. Using numerical modeling (finite element method), the effect of hole diameter (1.5–4.5 μm) and temperature (15–95 °C) on the zero-dispersion wavelength (ZDW) was analyzed. The results showed th…

This study applies first-principles density functional theory calculations to systematically analyze the structural, electronic, and optical behaviors of the NaTaO 3 perovskite. Different structures were evaluated for the studied material. The computations were performed using the full-potential linearized augmented plane wave approach together with local orbitals. In order to incorporate exchang…

Photonics and optical technologies provide powerful, noninvasive means to study microorganisms, including those that remain unculturable, by detecting light signals arising from specific structural and biochemical features. These include intrinsic chromophores such as aromatic amino acids, nicotinamide adenine dinucleotide hydride, and flavins; spectral signatures of functional groups in proteins…

Aging is a crucial process that enhances the quality of Chinese Baijiu production. This paper investigates the aging of sauce-flavored Baijiu through light irradiation. LED light sources with central wavelengths of 365, 395, and 455 nm are employed to age Baijiu samples. The total acid content is determined by titration, while the total ester content is obtained through saponification. Aged Baiji…

The increasing interest in the field of free-space optical communication (FSOC) can be attributed to the rising demand for an alternate communication system that can replace the existing communication systems. FSOC ranges from a few meters of indoor communication to a few kilometers of terrestrial range to satellite communication. The challenges posed vary in different scenarios. For indoors, maj…

Gallium nitride (GaN) film grown on a silicon substrate has been investigated for high electric field-induced lattice damage via cameraless terahertz (T-ray) imaging technique. In addition, T-ray time-domain spectroscopy (TDS) has been conducted on the same GaN film as a function of depth via nondestructive and noncontact pump-probe technique. This is termed as the deep-level TDS. Further, a pair…

In this article, a modified Abeles technique is proposed for calculating the energy transmission coefficient of electromagnetic radiation of a liquid crystal modulator operating on the basis of a π-cell. The proposed technique has an accuracy of modeling the characteristics of the liquid crystal modulator comparable to known analogs. The results of computer modeling allow us to draw the following…

This work demonstrates the potential of a dual-polarized multilevel modulation format with coherent detection (CD) to maximize the spectral efficiency to meet the demand of the next-generation passive optical network (NG-PON). Maximizing capacity and spectral efficiency in NG-PON networks is particularly crucial for improving high-speed internet access, bridging the digital divide, and enabling n…

Sustainable synthesis, also known as environmentally benign synthesis, of nanoparticles, presents an energy and resource-efficient approach for the development of nanoparticles to advanced materials with considerable biomedical potential. This study focuses on the synthesis of zinc oxide (ZnO) nanoparticles using Tinospora cordifolia (Giloy) leaves, aqueous extract as a natural strengthening and …