Laser identifies explosive powders 400 meters away
![green laser light flash](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/08/ticker_raman_free.jpg?fit=860%2C460&ssl=1)
GREEN LIGHT An intense flash from random Raman lasing contains clues useful for distinguishing between similar-looking powders from far away.
Courtesy of Brett Hokr
GREEN LIGHT An intense flash from random Raman lasing contains clues useful for distinguishing between similar-looking powders from far away.
Courtesy of Brett Hokr