A vibrational spectroscopic imaging technology that can take images of living cells could represent an advanced medical diagnostic tool for the early detection of cancer and other diseases. High-speed spectroscopic imaging makes it possible to observe the quickly changing metabolic processes inside living cells and to image large areas of tissue, making it possible to scan an entire organ.
Geometrically, fractals have forms, or features, that repeat at different sizes over ranges of...
Researchers studying cancer and other invasive diseases rely on high-resolution imaging to see...
Squid are the ultimate camouflage artists, blending almost flawlessly with their backgrounds so...
A smart and simple method developed at Rice Univ. to image a patient’s eye could help monitor eye health and spot signs of macular degeneration and diabetic retinopathy, especially in developing nations. The patient-operated, portable device invented at Rice is called mobileVision. It can be paired with a smartphone to give clinicians finely detailed images of the macula, without artificially dilating the pupil.
Real-time dynamic holographic displays, long the realm of science fiction, could be one step closer to reality, after researchers from the Univ. of Cambridge developed a new type of pixel element that enables far greater control over displays at the level of individual pixels.
Engineers at The Univ. of Texas at Dallas have created semiconductor technology that could make night vision and thermal imaging affordable for everyday use. The engineers created an electronic device in affordable technology that detects electromagnetic waves to create images at nearly 10 THz, which is the highest frequency for electronic devices. The device could make night vision and heat-based imaging affordable.
Most lenses are, by definition, curved. After all, they are named for their resemblance to lentils, and a glass lens made flat is just a window with no special powers. But a new type of lens created at the Harvard School of Engineering and Applied Sciences turns conventional optics on its head.
Traditional fluorescence microscopy has suffered from the resolution limits imposed by diffraction and the finite wavelength of light. Classical resolution is typically limited to about 200 nm in xy. Due to the nanoscale architecture of many biological structures, researchers developed super-resolution techniques, starting in the 1990s, to overcome this classical resolution limit in light microscopy.
Flexible smartphones and color-saturated television displays were some highlights at this year’s Consumer Electronics Showcase, held in January in Las Vegas.
From aerial surveillance to cancer detection, mid-wavelength infrared (MWIR) radiation has a wide range of applications. And as the uses for high-sensitivity, high-resolution imaging continue to expand, MWIR sources are becoming more attractive. Currently, commercial technologies for MWIR detection can only operate at cryogenic temperatures in order to reduce thermal and electrical noise.
It’s technology so advanced that the machine capable of using it doesn’t yet exist. Using two biocompatible parts, Univ. at Buffalo researchers and their colleagues have designed a nanoparticle that can be detected by six medical imaging techniques: computed tomography (CT) scanning, positron emission tomography (PET) scanning, photoacoustic imaging, fluorescence imaging, upconversion imaging and Cerenkov luminescence imaging.
A new semiconductor laser developed at Yale Univ. has the potential to significantly improve the imaging quality of the next generation of high-tech microscopes, laser projectors, photo lithography, holography and biomedical imaging. Based on a chaotic cavity laser, the technology combines the brightness of traditional lasers with the lower image corruption of light-emitting diodes.
Ever notice an earthy smell in the air after a light rain? Now scientists believe they may have identified the mechanism that releases this aroma, as well as other aerosols, into the environment. Using high-speed cameras, the researchers observed that when a raindrop hits a porous surface, it traps tiny air bubbles at the point of contact.
Plans for the construction of the world's largest digital camera at the SLAC National Accelerator Laboratory have reached a major milestone. The 3,200-megapixel centerpiece of the Large Synoptic Survey Telescope, which will provide unprecedented details of the universe and help address some of its biggest mysteries, has received key "Critical Decision 2" approval from the DOE.
A team of engineers has developed a new acousto-optic device that can shape and steer beams of light at speeds never before achieved. The new technology will enable better optical devices to be made, such as holographs that can move rapidly in real time.
In 2007, Google unleashed a fleet of cars with roof-mounted cameras to provide street-level images of roads around the world. Now Massachusetts Institute of Technology spinout Essess is bringing similar “drive-by” innovations to energy efficiency in homes and businesses.
A walking molecule, so small that it cannot be observed directly with a microscope, has been recorded taking its first nanometer-sized steps. It's the first time that anyone has shown in real time that such a tiny object – termed a "small molecule walker" – has taken a series of steps.
A team of researchers from Argonne National Laboratory and Ohio Univ. have devised a powerful technique that simultaneously resolves the chemical characterization and topography of nanoscale materials down to the height of a single atom. The technique combines synchrotron x-rays (SX) and scanning tunneling microscopy (STM). In experiments, the researchers used SX as a probe and a nanofabricated smart tip of a STM as a detector.
We are all familiar with the hassles that accompany air travel. We shuffle through long lines, remove our shoes, and carry liquids in regulation-sized tubes. And even after all the effort, we still wonder if these procedures are making us any safer. Now a new type of security detection that uses terahertz radiation is looking to prove its promise.
Researchers from North Carolina State Univ. have developed a technique that allows ultrasound to penetrate bone or metal, using customized structures that offset the distortion usually caused by these so-called “aberrating layers.” The researchers addressed this problem by designing customized metamaterial structures that take into account the acoustic properties of the aberrating layer and offsetting them.
For the first time, scientists have vividly mapped the shapes and textures of high-order modes of Brownian motions—in this case, the collective macroscopic movement of molecules in microdisk resonators—researchers at Case Western Reserve Univ. report. To do this, they used a record-setting scanning optical interferometry technique.
It’s not uncommon to see cameras mounted on store ceilings, propped up in public places or placed inside subways, buses and even on the dashboards of cars. Cameras record our world down to the second. This can be a powerful surveillance tool on the roads and in buildings, but it’s surprisingly hard to sift through vast amounts of visual data to find pertinent information, until now.
A collaboration blending research in U.S. Dept. of Energy's offices of High-Energy Physics (HEP) with Basic Energy Sciences (BES) will yield a one-of-a-kind x-ray detector. The device boasts Brookhaven National Laboratory sensors mounted on Fermilab integrated circuits linked to Argonne National Laboratory data acquisition systems. It will be used at Brookhaven's National Synchrotron Light Source II and Argonne's Advanced Photon Source.
Researchers led by David Thompson, president of Aten Biotherapeutics and a professor in Purdue's Department of Chemistry, are developing controlled-release imaging agents that allow for a longer, safer imaging session.
When NASA’s Dawn spacecraft visited the asteroid Vesta in 2011, it showed that deep grooves that circle the asteroid’s equator like a cosmic belt were probably caused by a massive impact on Vesta’s south pole. Now, using a super high-speed cannon at NASA’s Ames Research Center, Brown Univ. researchers have shed new light on the violent chain of events deep in Vesta’s interior that formed those surface grooves.
Inside Massachusetts Institute of Technology’s Building 41, a small, Roomba-like robot is trying to decided where to go. As the robot considers its options, its “thoughts” are projected on the ground in the form of different colored dots and lines. This new visualization system, called “measurable virtual reality”, combines projectors with motion-capture technology and animation software to project a robot’s intentions in real time.
If the surroundings are designed to be sufficiently stimulating, even a simple computer screen is enough to generate an intense cinematic experience. After observing some 300 study subjects, researchers in Germany have concluded that the angle of viewing does not play a vital role in the cinematic experience. Instead, the presence of so-called contextual visual cues plays a greater role in actually drawing viewers into a movie.
Researchers in Japan have directly observed and recorded electron flow at 80,000 m/sec in a semiconductor. They did so by combining a new laser pulse light source and a photoemission electron microscope to develop an ultra high-speed microscope that enabled visualization of electrons on a 20 nm and 200 femtosec scale.
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