TY - JOUR AU - A. Johnson AU - N. Lamontagne BT - Physics Today DA - 2016-06 DO - 10.1063/PT.3.3197 PY - 2016 SP - 34 EP - 39 T2 - Physics Today TI - A century of light UR - http://scitation.aip.org/content/aip/magazine/physicstoday/article/69/6/10.1063/PT.3.3197 VL - 69 SN - 0031-9228 ER -