Global concerns about microplastics (MP) and nanoplastics are rising, necessitating effective identification methods. This review explores advanced optical imaging systems for MP detection, highlighting. their nondestructive, noncontact advantages and rapid detection capabilities. By comparing various technologies and discussing portable devices, it provides practical guidelines for researchers and insights into long-term MP pollution monitoring and environmental protection. Global concern about microplastic (MP) and nanoplastic (NP) particles is continuously rising with their proliferation ..read more

Quantization effects postulated for nanolaminate structures are observed for the material combination of amorphous silicon and SiO2 deposited by magnetron sputtering. Transmission electron microscopy characterization gives evidence of continuous layers of amorphous silicon and SiO2 with well-defined interfaces. The novel material shows very good transmission in a longpass optical interference filter with edge at 720 nm, which with standard amorphous silicon would show high losses. Quantization effects in nanolaminate structures of oxide materials are proposed and experimentally demonstrated ..read more

Chiral emission with near-unity degree of circular polarization and strong emission intensities is highly desirable. This review discusses recent experimental demonstrations on chiral emission from achiral emitters that are combined with patterned nanostructures. Based on reciprocity and critical coupling, physical insights are provided into how ideal chiral emission can be realized by optimizing the design of optical metasurfaces and metacavities. Chiral emission exhibiting a large degree of circular polarization (DCP) is important in diverse applications ranging from displays and optical s ..read more

The melt-shear organization technique uses tailor-made core–shell particles to produce opal films with structural colors. Cellulose is incorporated into these films to improve the wetting behavior and the films’ mechanical properties while maintaining the composites’ structural color. Combining cellulose-based components with functional materials is highly interesting in various research fields due to the improved strength and stiffness of the materials combined with their low weight. Herein, the mechanical properties of opal films are improved by incorporating cellulose fibers and microcrys ..read more

The current perception of luminescence lifetime measurement is that it is a trivial and fast experiment. This crucial parameter bears essential physical and chemical information employed to quantify a variety of phenomena. It is shown, in this perspective, that measuring luminescence decay and fitting the obtained data to a suitable model can be far more intricate. Luminescence lifetime is a crucial parameter in photophysical studies that bears essential physical and chemical information and that is used to quantify a variety of phenomena, from the determination of quenching mechanisms to te ..read more

Radioluminescence (RL) dosimetry has shown great potential for high spatiotemporal resolution dosimetry in radiation therapy (RT). Implementation of efficient RL dosimetry in RT requires multidisciplinary effort and skills in optics, medical physics, radiation physics, electronics, and imaging science. Herein, a wide overview of fundamentals and applications of RL properties of media for RT dosimetry is provided. Accurate and precise measurement of radiation energy delivered to and absorbed by the patient's tissue is of great importance in radiation therapy (RT) quality assurance. Radiolumin ..read more

We employ  injection metal–insulator–semiconductor charge extraction by linearly increasing voltage (i-MIS-CELIV) to measure mobility in tris(4-carbazoyl-9-ylphenyl)amine (TCTA), a material used in organic light-emitting diodes (OLEDs). Negligible hole trapping in the evaporated TCTA films compatibility was observed . Photo-i-MIS-CELIV measurements showed that there was insignificant reduction in injection current at the semiconductor/contact interface. The charge carrier mobility in tris(4-carbazoyl-9-ylphenyl)amine (TCTA), a host and hole transport material typically used in organic l ..read more

This review explores how artificial intelligence (AI) influences fluorescence microscopy, enhancing image quality and introducing new imaging techniques. It categorizes AI-driven microscopy into linear inverse problem-solving, denoising, and nonlinear prediction. Additionally, it addresses self-supervised learning algorithms to improve data quality and expand imaging capabilities. While the primary focus centers on fluorescence microscopy, these principles apply to other optical microscopy methods. This review explores how artificial intelligence (AI) is transforming fluorescence microscopy ..read more

This review examines the growing focus on developing lead-free perovskites in response to the environmental and health risks posed by Pb. It delves into the progress in lead-free perovskite materials for their essential characteristics, synthesis, and optoelectronics advancements. Emphasizing the need for eco-friendly innovations, it underlines the significance of lead-free perovskites in advancing sustainable and high-performance technological applications. The pursuit of lead-free alternatives to lead halide perovskites has gained significant momentum due to the environmental concerns asso ..read more

Herein, the direct growth of low-defect III-V-on-silicon laser structures that perform on par with top-tier lasers on native GaAs substrates is demonstrated. Atomic-resolution cross-sectional scanning tunneling microscopy and spectroscopy reveal exceptional material quality in the active region. Additionally, lasers fabricated on both Si and GaAs substrates using identical processes exhibit virtually identical average threshold currents. The direct growth of III-V materials on silicon is a key enabler for developing monolithically integrated lasers, offering substantial potential for ultrade ..read more