Executive Interviews.

In the Right Light, It All Makes Sense

Almost everything worth measuring — the sugar in your blood, the water in your tissue, the methane in a pipeline, the protein in a grain of wheat — announces itself in the infrared. The obstacle has never been the physics but the light source: broadband infrared has meant hot filaments and bulky cans, compact infrared has meant narrow-line LEDs and lasers that each see one thing.