A group of researchers has created a deep learning-based ultrasound hologram generation framework technology that allows them to freely configure the form of focused ultrasound in real time using holograms. It is expected to be a foundational technology in brain stimulation and precision treatment. Ultrasound can treat conditions such as Alzheimer’s, depression, and pain. The [..]

During the last decade, metal halide perovskites (MHPs) have emerged as a rising star in optoelectronics. Due to the intriguing optoelectronic properties of MHPs, cutting-edge optoelectronic technologies based on MHPs, such as perovskite solar cells (PSCs), light emitting diodes (LEDs), photodetectors (PDs), and lasers, have been leading the prevailing paradigm. Furthermore, MHPs have the advantages [..]

Microelectronics has transformed how we manipulate electricity, allowing for sophisticated electronic products that are now a necessary part of our daily lives. Integrated photonics has transformed how we control light in applications such as data communications, imaging, sensing, and biomedical devices. While near-infrared lasers have made some progress, the visible-light lasers that feed photonic chips [..]

LIBS is a rapidly developed chemical analysis technology for trace element analyses in gases, liquids, and solids. The plasma-grating-induced breakdown spectroscopy technique (GIBS) could overcome the limitations of FIBS. A high-power laser pulse is used in GIBS to elicit short-lived, high-temperature plasma in a sample. As the plasma cools, it emits spectral peaks corresponding to [..]

Polarized light-based processing devices are one million times faster than current technology. Logic gates are the fundamental components of computer processors. Conventional logic gates are electronic and work by shuffling electrons around. On the other hand, researchers have been working on light-based optical logic gates to meet the data processing and transfer requirements of next-generation [..]

Polarimetric images, which use polarizers to selectively reflect the transverse electric (TE) field and transmit the unpolarized incident light’s transverse magnetic (TM) field, can provide information such as shading and surface morphologies. On the other hand, current Infrared polarizers are primarily based on expensive and brittle ceramics with nano-gratings typically fabricated by time- and cost-consuming [..]

The power of artificial intelligence (AI) applied to endometrial carcinoma microscopy images is demonstrated in a new study. The research team provides novel insights that could improve uterine cancer diagnosis and treatment. Researchers used AI to analyze microscopy images of thousands of endometrial carcinoma patients. This model was not a “black box,” but the researchers [..]

The physical world of electromagnetics has always been inextricably linked to the digital world of information. Wireless communication systems based on metasurfaces are only applicable in single-polarization scenarios. The capacity of transmitted information remains limited, as do transmission speeds. Based on anisotropic space-time-coding metasurfaces (STCMs), scientists created a frequency-polarization-division multiplexed wireless communication system and a [..]

Precision medicine is starting to incorporate functional assays to evaluate anticancer agents on patient-isolated tissues or cells to select the most effective. Among these new technologies, dynamic BH3 profiling (DBP) has emerged and has extensively been used to predict treatment efficacy in different types of cancer. DBP uses synthetic BH3 peptides to measure early apoptotic [..]

Researchers have created an all-optical method for driving multiple highly dense nanolaser arrays, which could lead to chip-based optical communication links that process and move data faster than current electronic devices. The use of optical fiber eliminated the need for large and complex electrodes, which are commonly used to power laser arrays. According to the [..]

Patients with bone cancer are often treated with alpha particle radiation therapy, delivered into or very close to the tumor. However, it is unknown whether the radioactive elements spread throughout the surrounding area or to the body’s vital organs, where they could cause toxic effects. Researchers developed a computational framework to measure the concentration of [..]

Currently, radiologists face an excessive workload, which causes fatigue and, as a result, undesirable diagnosis errors. Decision support systems can help radiologists prioritize and make faster decisions. In this regard, medical content-based image retrieval systems that provide well-curated similar examples can be extremely useful. Nonetheless, most medical content-based image retrieval systems operate by locating the [..]

A group of researchers has developed a method for achieving high Q factors from robust mechanical structures, significantly reducing device fabrication difficulty and enabling device operation in various environments. High-Q mechanical resonances are desired in many applications, but conventional wisdom relies on minimizing the size of mechanical resonator supporting structures, which makes the fabricated mechanical [..]

Femtosecond laser pulses are extremely powerful tools in various applications ranging from medicine to manufacturing to astronomy. Using a time lens, researchers created a high-performance on-chip pulse source. The technology has the potential to enable new applications in quantum and optical computing, astronomy, optical communications, and other fields. Microfabrication techniques, similar to those used to [..]

High-resolution imaging with adaptive optics (AO) could be useful for determining the integrity of the cone mosaic after macular hole repair. An adaptive optics retinal camera was used to measure photoreceptors before and after macular hole (MH) surgery to assess any cone density changes accurately. The researcher described the results of a small study that [..]

A group of researchers has created a new thermal-imaging sensor that detects microwave radiation 100,000 times more sensitively than currently available commercial sensors, paving the way for novel communications and weaponry technology. The sensor developed by scientists could dramatically improve thermal imaging and provide a foundation for inventions in electronic warfare and radio communications, among [..]

A team of researchers is working to advance the development of a quantum-based hyperpolarizer for use in clinical settings. The goal is to significantly improve MRI imaging of metabolic processes, allowing for earlier and more accurate tumor detection. Metabolic imaging with magnetic resonance imaging (MRI) is possible. Until now, signal amplification technologies have been prohibitively [..]

Chalcogenide glasses are covalently bonded amorphous compounds containing one or more elements: sulfur, selenium, and tellurium. Other elements found in chalcogenides include arsenic, antimony, and even germanium. Synthetic chalcogenide glasses, like pure germanium, have high refractive indices. Unlike brittle semiconductors, however, they can be precisely molded to specification rather than being built up through crystal [..]

Reflectivity is one of the difficulties in distinguishing a duplicate hologram (hologram verification) from an original. Because a slight change in lighting condition completely changes the reflection pattern displayed by a hologram, a standardized duplicate hologram detector has yet to be developed. Researchers have developed a portable, low-cost snapshot hyperspectral imaging (HSI) algorithm-based housing module [..]

Researchers demonstrated a new simple laser system that could aid astronomers in the discovery of new Earth-like planets. The laser emits light at one billion pulses per second and comprises only three parts: two mirrors and a sapphire crystal with a trace of titanium. The new source is powered by a green laser, which converts [..]