Conventional wisdom would say that blocking a hole would prevent light from going through it, but Princeton University engineers have discovered the opposite to be true. A research team has found that placing a metal cap over a small hole in a metal film does not stop the light at all, but rather enhances its […] … learn more→
Tag Archives: light
Blocked holes can enhance rather than stop light going through, engineers find
Light can detect pre-cancerous colon cells
Short bursts of light from an endoscope could be a less invasive way for physicians to detect abnormal cells in the colon. After demonstrating that light accurately detected pre-cancerous cells in the lining of the esophagus, Duke University bioengineers turned their technology to the colon and have achieved similar results in a series of preliminary […] … learn more→