Quantum laser-based technology a big step forward toward using exhaled breath to diagnose illness UNIVERSITY OF COLORADO AT BOULDER IMAGE: QIZHONG LIANG, A PHD CANDIDATE IN JILA AND THE DEPARTMENT OF PHYSICS AT THE UNIVERSITY OF COLORADO BOULDER, DEMONSTRATES HOW THE LASER-BASED BREATHALYZER WORKS, IN THE YE LAB AT JILA. ULTIMATELY, THE SYSTEM COULD BE...