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, [..]

Physicists are investigating a laser-based approach to illuminate the most subtle aspects of mosquito activity and better track populations that may carry a viral threat. A study used light detection and ranging (lidar), an infrared optical remote-sensing technology capable of capturing the rate at which mosquitos beat their wings in flight, known as wing beat [..]

According to new research, light-induced phase changes behave differently than temperature-induced phase changes. While optically induced phase changes had previously been observed, the mechanism by which they occurred was unknown. More understanding of the process could lead to new optoelectronic devices, such as data storage devices. The researchers used an electron density modulation frozen within [..]