Terahertz’s penetrating appeal
From SPIE Professional April 2006
Terahertz’s penetrating appeal
Kristin Lewotsky
When terahertz imaging was making headlines in the mid 1990s, courtesy of researchers at Bell Laboratories (Holmdel, NJ), the focus was frequently industrial, such as potentially measuring the water content of packaged Fig Newton cookies. Back then, says former team member Daniel Mittleman, now of Rice University (Houston, TX), the systems were room-sized and the technology limited.
Today, much has changed. Reliable terahertz sources exist, the room-sized systems have shrunk to the size of a briefcase, and more than one company sells commercial systems. The applications have changed also; today, the big targets of opportunity for terahertz imaging also include security and medical applications.
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