Metamaterials are artificial nanostructures that affect light and are expensive and difficult to fabricate. A research team created a solution-based 3D-printing method that allows for the low-cost manufacture of metamaterials in desired shapes. By coupling evaporative co-assembly of silica and gold nanoparticles with 3D nanoprinting, the researchers created freeform, freestanding raspberry-like metamolecule (RMM) fibers in [..]

Multiphoton excitation (MPE) microscopy has evolved significantly over the past 30 years, becoming a powerful imaging method in various life sciences. Modern techniques include fluorescence microscopy, Raman scattering, and harmonic generation. MPE is used in neuroscience, pharmaceutical development, and preclinical research. The ultrafast laser is the critical component underpinning all MPE microscopy methods. Ultrafast laser [..]

AI machine vision is a technology that enables machines to analyze and comprehend visual data like humans do. It can do tasks including item detection, scene analysis, and autonomous navigation, revolutionizing industries that humans previously dominated. Manufacturing is one of the industries where artificial intelligence machine vision has had a significant impact, with a wide [..]

The pursuit of making everything smaller has led to significant progress in various fields, including micro-optics. Two-photon polymerization (TPP) 3D printing is an important manufacturing technique that enables these advancements. However, errors in the nanometer range can have significant consequences, making it essential to understand and compensate for systematic errors in the printing process. These [..]

Researchers have revealed groundbreaking research that can potentially alter the field of two-dimensional optoelectronics. Researchers have successfully demonstrated in a groundbreaking study that chicken egg white, i.e., biodegradable albumen, can be a very effective dielectric gate for two-dimensional materials. This breakthrough opens new avenues for sustainable and biodegradable technology in optoelectronic devices. This novel technique [..]

Researchers are enhancing lidar tech for increased versatility, which benefits scientists and explorers in remote sensing, surveying, mapping, 3D-image scanning, hazard detection, and navigation. Lidar, a remote sensing device, employs light pulses to detect distances and object attributes precisely. With continuous investigations, its precision and versatility make it critical for communication, navigation, planetary exploration, and [..]

Researchers have developed a quantum sensing method using a nitrogen-vacancy (NV) center in single nanodiamond sensors, enabling the identification and evaluation of molecules in physiological in situ settings, a crucial goal in biological sciences. This method offers high sensitivity and biocompatibility. However, analyzing the movement of nanodiamonds in real cells reveals that they rotate at [..]

Modern computer models, such as those used in complicated, powerful AI applications, test the limits of classical digital computer operations. New computing architectures that mimic the operating principles of biological neural networks promise quicker, more energy-efficient data processing. A group of researchers has created an event-based architecture that uses photonic processors to transfer and analyze [..]

In medical diagnostics, artificial intelligence (AI) is already widely employed. In a realistic clinical environment, a research team studied how it benefits the diagnosis and management of pigmented skin lesions. The team evaluated the accuracy of two separate algorithms in smartphone applications in diagnosis and therapy suggestions to that of doctors in a study. The [..]

Low-frequency noise, ubiquitous in cities, roadways, and airports, can cause earaches, respiratory impairment, and irritation. Pingpong balls, typically hollow plastic balls, can assist in absorbing this noise, which is difficult to prevent due to its diverse sources and shapes. The researchers describe an acoustic metasurface that uses pingpong balls as Helmholtz resonators to provide low-frequency [..]

Holograms provide a three-dimensional perspective of objects, creating a realistic and immersive experience. They have applications in medical imaging, manufacturing, and virtual reality. However, because of their computationally intensive nature and the requirement for a particular camera, their creation is difficult, and their broad application is limited. Many Deep Learning Approach for producing holograms have [..]

Rapid antimicrobial prescriptions are required when viable bacteria are in the blood or bacteremia, which can result in sepsis and bloodstream infection (BSI). Due to the lengthy nature of traditional antimicrobial susceptibility testing (AST), clinicians must rely on experience. In comparison to conventional approaches that take two days, researchers have created a BSI-AST chip for [..]

Because of its significant optical nonlinearity, wide transparency window, and strong electro-optic coefficient, thin-film lithium niobate (TFLN) presents a viable platform for integrated photonics. However, to fully utilize TFLN, additional lasers and photodetectors are necessary. Researchers merged a modified uni-traveling carrier photodiode wafer to improve bandwidth and responsiveness onto a TFLN wafer. LN waveguides and [..]

Following iDISCO+-based clearing and immunolabeling, researchers devised a protocol for the complete human eye’s light sheet fluorescence microscopy (LSFM). En-face observation of the fundus and resolution of retinal capillaries are made possible by this method’s ability to provide three-dimensional (3D) navigation and personalized presentation. This technique is helpful in anatomopathology and research because it gets [..]

Using reconstruction methods, researchers created an MSOT scanner that gathers sound waves and translates them into images. MSOT imaging, a medical imaging technology, can potentially diagnose and assess various disorders. Its processing time could be more feasible in clinical settings. Fast and low-quality picture reconstruction is possible with MSOT imaging methods. Long processing periods are [..]

Scientists have created plasmonic plastic, a 3D-printable composite material with special optical qualities. This research has produced 3D-printed optical hydrogen sensors, which may be crucial to the industrial and energy shift toward green energy. Over the past 20 years, there has been a sharp increase in interest in plasmonic metal nanoparticles and all of their [..]

Researchers have developed a nonrelativistic and nonmagnetic approach to generate Terahertz (THz) waves, which can be used to probe the magnetic properties of new materials. Researchers use the anisotropic electrical conductivity of particular materials to directly exploit laser-excited, high-density charge currents across nanoscale metallic surfaces to harness the power of these currents to generate THz [..]

Raman spectroscopy—a method of evaluating substances by shining monochromatic light over a sample and seeing the emerging dispersed light—has frustrated biologists for more than fifty years. During the optical measurements, the heat generated by the light nearly kills living proteins, leading to decreased and non-repeatable findings. It appears that these hassles may be the past [..]

Researchers’ creation of a palm-sized, all-glass femtosecond laser cavity has opened a new path toward free-space femtosecond lasers. Its design defies standard procedures because of its exact component alignment and downsizing. The innovation consists of micromachining a holder for optical components and separating flexural elements into a glass substrate using a commercial femtosecond laser. Using [..]

Polarimetric imaging, which considers the polarization of light in every pixel of an image, can provide a fuller view of an object than traditional cameras. Polarized light, made of electromagnetic waves, travels along a single plane or on a rotating plane. This technology can reveal information the human eye may miss, such as pointing out [..]