Then and Now Making Lasers Tunable Karen Kwon and Alessia Kirkland Since the laser’s first demonstration in 1960, scientists have worked to expand the range of wavelengths the devices can emit. [Enlarge graphic]… Log in or become a member to view the full text of this article. This article may be available for purchase via the search at Optica Publishing Group. Optica Members get the full text of Optics & Photonics News, plus a variety of other member benefits. Publish Date: 01 October 2022 Add a Comment Please enable JavaScript to view the comments powered by Disqus.