Page 20 - Optics Express News Today : Breaking News, Live Updates & Top Stories | Vimarsana

 E-Mail IMAGE: A new study shows that Raman spectroscopy could aid in early detection of oral squamous cell carcinoma. The work was performed with a compact portable Raman sensor designed by the... view more  Credit: Levi Matthies, University Medical Center Hamburg-Eppendorf WASHINGTON -- In a new study, researchers show that a light-based analytical technique known as Raman spectroscopy could aid in early detection of oral squamous cell carcinoma (OSCC). OSCC is the most prevalent type of oral cancer and ranks among the most common cancers diagnosed worldwide. Although effective t...

 E-Mail IMAGE: Researchers developed a way to use overhead LED lighting and a smartphone to create 3D images of a small figurine. view more  Credit: Emma Le Francois, University of Strathclyde WASHINGTON -- As LEDs replace traditional lighting systems, they bring more smart capabilities to everyday lighting. While you might use your smartphone to dim LED lighting at home, researchers have taken this further by tapping into dynamically controlled LEDs to create a simple illumination system for 3D imaging. "Current video surveillance systems such as the ones used for public transport...

Loading video... VIDEO: The researchers also used their endoscope to record the dynamic diffusion process of water droplets and indocyanine green solution on cloth under normal illumination and different imaging modes. view more  Credit: Chenyoung Shi, Chinese Academy of Sciences WASHINGTON -- Researchers have developed a new bio-inspired medical endoscope that can acquire 3D visible light and near-infrared fluorescence images at the same time. It features an optical design that combines the high-resolution 3D imaging of human vision with the mantis shrimp's capability to simultaneousl...

Pole beans and similar twining plants reach out with touch-sensitive shoots to curl themselves around support structures like strings, ropes, rods, and sticks to allow themselves to grow skyward. UGA's spiraling robot tool has been created to mimic these exact sorts of worm-like tactics to gently grasp objects as tiny as 1 millimeter in diameter. "We had tried different designs but we were not happy with the results, then I recalled the pole beans I grew in our garden few years ago," explained associate professor and the study's lead author Mable Fok. "This plant can hold onto other plants or...

From the 1933 classic "The Invisible Man" to the more recent Harry Potter series, devices that achieve invisibility have been popular parts of film fantasy. In recent years, scientists using special types of 'meta' materials have shown that fantasy invisibility could one day become reality. Invisibility is all the rage in 2008 but according to a new paper in the latest issue of Optics Express, current techniques are already obsolete. Certain materials underneath an invisibility cloak would allow invisible objects to be seen again and a group of Chinese researchers are already working on an '...