Unipolar quantum optoelectronics offers a game-changing approach for high-speed direct modulation and transmission in the 8–14 µm atmospheric window. The research explores its potential for free-space optical (FSO) communication in the mid-infrared (MIR) region. The system leverages unipolar quantum optoelectronic devices, including a distributed feedback quantum cascade laser (DFB-QCL) as the transmitter and a quantum [..]

A groundbreaking new method developed by researchers has revolutionized the field of chiral analysis. For the first time, nuclear magnetic resonance (NMR) spectroscopy can directly elucidate the chiral structure of molecules—a crucial step in developing new drugs. Chirality, the spatial arrangement of atoms within a molecule, plays a vital role in its biological activity. Enantiomers, [..]

Researchers have made significant progress in developing a new class of transparent, high-porosity glasses. Due to their unique properties, these aluminum alkoxide network-forming glasses are particularly interesting for optics and photonics applications. The newly developed glasses exhibit well-defined transitions, indicating a clear transition from a viscous liquid to a rigid solid state. This property is [..]

Direction-of-arrival (DOA) estimation is fundamental in various applications, including radar, sonar, and wireless communication. Traditional methods for DOA estimation often rely on signal processing algorithms that can be computationally expensive and struggle with limitations like the diffraction limit. Researchers are exploring the potential of optical computing to overcome these limitations and achieve higher accuracy and [..]

Diamond, the epitome of hardness and durability, has long intrigued scientists for its potential in various applications. While its exceptional thermal conductivity and quantum properties are well-known, its suitability for high-power electronics has been hindered by fabrication challenges and limited understanding of its electrical behavior. Researchers have recently shed light on this diamond enigma by [..]

In a recent breakthrough, researchers have developed a new method to predict a patient’s response to neoadjuvant chemotherapy (NAC) for breast cancer. This method leverages the power of artificial intelligence (AI) and combines information from ultrasound images and pathology slides. NAC is a type of chemotherapy given before surgery to shrink tumors and improve surgical [..]

Researchers have successfully engineered a metasurface that can transform the chaotic, incoherent thermal emissions from thermal sources like incandescent bulbs into highly coherent, polarized, and directed beams. This groundbreaking achievement could revolutionize fields ranging from lighting and imaging to thermal management and control. Traditionally, metasurfaces have been limited to manipulating highly coherent laser light. However, [..]

Traditionally, liquid crystal (LC) holography has been confined to the scalar domain, manipulating only light intensity. This limitation hinders the ability to control light fields and encode complex information fully. Researchers have recently made significant strides in overcoming this hurdle, achieving vectorial LC holography using a single-layer, single-material LC superstructure. This novel approach leverages a [..]

Microfluidic biochips are tiny devices that manipulate fluids at the microliter scale. They have a wide range of applications in the medical field, including drug discovery, diagnostics, and personalized medicine. However, a new study has shown that these chips are vulnerable to cyber-physical attacks that can be launched by tampering with the manufacturing process. The [..]

Diabetic retinopathy (DR) is a complication of diabetes that can lead to vision loss. Early detection and treatment of DR are essential to prevent vision loss. Traditional fundus photography (FP) is a common screening method for DR. Still, it has limitations in detecting diabetic macular edema (DME), a type of fluid buildup in the macula, [..]

In silicon photonics, creating dependable sources of single photons and enabling strong interactions between them has been a substantial obstacle to quantum technologies. A recent study describes a novel technique for generating indistinguishable photons from a silicon waveguide incorporating a G center. G centers are intricate defects within silicon. They consist of two carbon atoms [..]

A new method for measuring urine C-reactive protein (CRP) levels has been developed using an optical sensor and machine learning algorithms. This method is believed to be more accurate and reliable than traditional methods, such as ELISA. CRP is a biomarker of inflammation, and a point-of-care test for CRP could be useful for various applications, [..]

Researchers have achieved a breakthrough in their understanding of retinal neovascularization. This condition, characterized by the abnormal growth of blood vessels in the retina, is a leading cause of vision loss in premature infants, diabetics, and the elderly. Traditionally, treatments for retinal neovascularization have been limited to laser therapy and anti-VEGF-A (vascular endothelial growth factor [..]

Researchers have unveiled a groundbreaking microscopy technique that promises to revolutionize our understanding and manipulation of nanomaterials. Their work introduces a method to visualize the intricate details of metamaterials, structures engineered at the nanoscale with extraordinary optical properties. Until now, exploring the nanoscale realm has been akin to studying an elephant with a magnifying glass. [..]

Imagine a world where telescopes in space and powerful lasers on Earth can function flawlessly for years without worrying about microscopic cracks or fractures diminishing their performance. This futuristic vision might inch closer to reality thanks to researchers’ recent discovery of self-healing glass. The crux of the challenge lies in the limitations of conventional materials [..]

Jiming Bao, an electrical and computer engineering professor at the University of Houston, has invented a new method to improve thermal imaging and infrared thermography. These techniques measure and show temperature distributions without physically touching the photographed material. Thermal cameras and infrared thermometers are very sensitive tools used in various industries, including military and medical [..]

A groundbreaking study has demonstrated the potential of optical spectroscopy to assess COVID-19 severity rapidly. By employing Brillouin light scattering (BLS) spectroscopy, researchers have shown that subtle changes in blood plasma viscosity can serve as a valuable biomarker for disease progression. BLS is a non-invasive technique that analyzes the interaction of light with acoustic waves [..]

Solitary pulmonary mucinous adenocarcinoma (SPMA) is a challenging lung cancer to diagnose due to its often slow-growing nature. Traditionally, invasive surgical biopsies have been the gold standard for confirmation. However, a recent study has introduced a promising alternative: a novel nomogram model. This nomogram is a diagnostic tool that combines clinical and radiological data to [..]

Researchers have made significant strides in optoelectronics by developing a new type of LED capable of emitting spin-controlled photons at room temperature. This breakthrough could revolutionize how we harness light and electrons in devices like LEDs, solar cells, and lasers. The team’s previous research involved creating a polarized LED using perovskite materials. Building upon this [..]

A team of researchers has made a significant breakthrough in photonics by trapping alkali atoms on an integrated photonic circuit. This groundbreaking achievement paves the way for developing quantum networks based on cold-atom integrated nanophotonic circuits. The team successfully cooled cesium atoms to near zero and trapped them on a photonic waveguide. These “frozen” atoms, [..]