Brainstorming Their Way to an Imaging Revolution

SENSINGOXFORD, U.K.-- Terahertz waves penetrate fog, peer through paper and clothes, and look into human tissue, but their useful properties are terra incognita to most because of the huge cost of existing sensors. Last week, however, a team of scientists from across Europe began testing an imaging chip that could open up this long-neglected part of the electromagnetic spectrum to new applications, from medical imaging to satellite observations of Earth. The device itself is intriguing enough, but equally novel is how it's being developed.