University of Rochester researchers describe the first demonstration of highly chirped pulses created by a using a spectral filter in a Kerr resonator, enabling them to widen a laser pulse wavefront by separating the beam's colors. The chirped pulses remain stable even with more than 90% energy loss.
Recently, a team led by Prof. JIANG Yuqiang from the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences, collaborating with researchers from the National University of Singapore, University of Electronic Science and Technology of China, and Shanxi University, achieved ultra-fast orbital rotation rate of nanoparticles at subdiffraction scale.
Researchers at the University of Gothenburg have observed the absorption of a single electron by a levitated droplet with such a magnification that it is visible with the naked eye and can even be measured with a normal millimeter scaled ruler.
Sweat bees navigate through dark tropical forests guided by canopy patterns.
The unique mechanical and optical properties found in the exoskeleton of a humble Asian beetle has the potential to offer a fascinating new insight into how to develop new, effective bio-inspired technologies.
Researchers reporting in Advanced Photonics demonstrate the conversion of infrared images to the visible, using ultrathin and transparent semiconductor nanocrystals.
Researchers have fabricated a magnetically driven rotary microfilter that can be used to filter particles inside a microfluidic device. They made the tiny turning filter by creating a magnetic material that could be used with a very precise 3D printing technique known as two-photon polymerization.
Although stimulated-emission depletion (STED) microscopy was a true breakthrough for observing the morphology of live neurons at higher resolution, there is still room for improvement. In a recent study published in Neurophotonics, a team of scientists led by Dr. U. Valentin Nägerl from Université de Bordeaux developed a simple yet effective calibration method that allows for more precise STED imaging at higher tissue depths.
Optical cloaking allows objects to be hidden in plain sight by guiding light around anything placed inside the cloak. While cloaking has been popularized in fiction, researchers in recent years have started realizing cloaks that shield objects from view by controlling the flow of electromagnetic radiation around them. In Journal of Applied Physics, researchers examined recent progress of developing invisibility cloaks that function in natural incoherent light and can be realized using standard optical components.
State-of-the-art video microscopy has enabled Australian researchers to see the molecular details of how malaria parasites invade red blood cells - a key step in the disease.