Tutorial Vibration Sensing with Laser Speckle OPN Staff How to record individual musical instruments playing in an ensemble, using laser light. 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 September 2022 Add a Comment Please enable JavaScript to view the comments powered by Disqus.