Because not all cancerous tumors respond equally to treatments and radiation therapy, clinicians’ treatment regimens and patient outcomes are complicated. A research team has now used Raman spectroscopy to reveal differences between tumors that responded to treatment and tumors that were resistant to treatment, potentially offering a way to distinguish between the two early in [..]

Engineers are creating a photonics education toolkit to integrate photonics into colleges’ engineering and science curriculums. The toolkit can help undergraduates learn practical skills in integrated photonics, such as characterizing and testing photonics integrated circuits, typically taught at the Ph.D. level. The team hopes that by teaching these skills earlier in life, more graduates will [..]

Researchers’ experimental photonic switches show promise toward the goal of fully optical, high-capacity switching for future high-speed data transmission networks, demonstrating previously unseen capabilities. The researchers will present the results of a successful scale-up of a 240×240 integrated silicon photonic switch. The device’s name comes from the fact that it accepts 240 optical communication input [..]

Light-based image sensors in autonomous vehicles frequently struggle to see through blinding conditions such as fog. However, researchers have developed a sub-terahertz-radiation receiving system that could aid in the navigation of driverless cars if traditional methods fail. Sub-terahertz wavelengths on the electromagnetic spectrum between microwave and infrared radiation can easily penetrate fog and dust clouds, [..]

Researchers have developed a new MRI sensor method for imaging calcium activity in brain cells, allowing them to look much deeper into the brain. They can use this technique to track signaling processes inside the neurons of living animals. It allows them to connect neural activity to behaviors and study brain development and behavior. The [..]

A group of physicists used spectroscopy to identify single antibiotic-resistant bacteria cells that are tuberculosis agents quickly. The method allows for the detection of bacteria and the assessment of antibiotic resistance without causing any harm to the biological material. The researchers proposed using Raman scattering spectrography to analyze bacterial cells quickly. Based on the scattering [..]

Engineers have developed a new method called dewetting for producing glass metasurfaces that can be rigid or flexible. It is a natural process that occurs when a thin film of material is deposited on a substrate and then heated, is used in the new method. The heat causes the film to shrink and disintegrate into [..]

As demonstrated by biomedical engineers, photoacoustic imaging can take the temperature of deep tissues more quickly and accurately than current techniques. This discovery could play a significant role in advancing thermal-based cancer therapies. Because the efficiency of light-to-sound conversion varies with temperature, the temperature can be measured by listening to light-generated soundwaves. However, the process [..]

Using a distributed Bragg reflector, a new method has dramatically reduced a type of image distortion caused by spectral cross-talk between dual-band long-wavelength photodetectors. Dual-band photodetectors provide numerous advantages in infrared imaging, including higher image quality and more data for image processing algorithms. However, spectral cross-talk interference between the two channels can limit performance, resulting [..]

Scientists have created a miniaturized phosphorescence sensor. It combines marker and sensor on a small chip surface about thumbnail size—a silicon chip houses both the OLED controller and the sensor front-end. Modulated blue OLED light excites the chemical marker. The marker’s phosphorescent response is then detected directly inside the sensor chip. The marker determines the [..]

A research team used resonant inelastic X-ray scattering to implement a new variant of the basic double-slit experiment, providing a more in-depth understanding of solid electronic structure. The researchers used resonant inelastic X-ray scattering (RIXS) to investigate an iridium oxide crystal (Ba3CeIr2O9). Strongly collimated, high-energy X-ray photons irradiate the crystal. In Young’s classic experiment, Iridium [..]

Lattice light-sheet microscopy, a new method of imaging the brain with unprecedented resolution and speed, has been developed by researchers. They can use this method to locate individual neurons, trace connections between them, and visualize organelles inside neurons across large areas of brain tissue. The new technology combines a technique for expanding brain tissue, allowing [..]

Stimulators (that send an electric current to the nerve that controls the bladder) have treated many people with severe bladder problems for the past 30 years. These implants help with incontinence and overactive bladder but can also interfere with normal nerve signaling to other organs. Recognizing this, a group of researchers created an implantable device [..]

A group of researchers has developed a light-scattering method for mapping the mechanical properties of a tumor’s cellular structure and internal fluids, revealing changes caused by chemotherapy treatment. The technique can help to distinguish malignant cell populations and assess the efficacy of anticancer treatments. The researchers used a noncontact imaging technique that takes advantage of [..]

Researchers have created a new integrated photonics platform to store light in an integrated circuit and electrically control its frequency (or color). The platform is based on atomic systems and can help with photonic quantum information processing, optical signal processing, and microwave photonics. It is the first time microwaves have been used to programmable shift [..]

The visual system of Xenos peckii, an endoparasite of paper wasps, differs from the compound eyes of most insects in terms of sensitivity and resolution. Inspired by their unique features, a team created an ultrathin digital camera that mimics Xenos peckii’s unique eyes. Compared to existing imaging systems, the ultrathin digital camera has a broader [..]

Researchers showed a significant coupling between light and high-frequency acoustic vibrations in a silica microresonator. The results open the door to creative uses of light-sound coupling in creating new technologies. It involves Brillouin scattering, a well-known nonlinear occurrence first identified in the 1920s. In sensing equipment and communications, producing a strong coupling of photons and [..]

Researchers have developed an IR Image encoding method to hide information on the surface of a material using a plasmonic nanostructure so that it is only visible through an IR lens or camera tuned to the correct IR band. Researchers demonstrated a method for hiding images within the IR spectrum in a study so that [..]

Researchers demonstrated a new technique for storing more optical data in a smaller space on-chip than was previously possible. This technique improves the phase-change optical memory cell, which uses light to write and read data, and could provide a faster, more energy-efficient form of computer memory. Researchers describe their new all-optical data storage technique, which [..]

If atom-flat 2D material sensors could be seamlessly integrated onto surfaces with different geometries where detection for the near-field signal is desired, they could be used to monitor performance without adding weight or hindering signal flow. Although 2D materials are often praised for their strength, moving them without damaging them is difficult. According to researchers, [..]