Wave in Fiber (IMAGE) Bar-Ilan University Caption Commercially-available fibers can be protected by a jacket made of polyimide. The specific material was originally proposed for protecting the fiber at high temperatures. However, recent studies at Bar-Ilan University and EPFL have demonstrated that the polyimide coating also provides transmission of ultrasound. The consequences are significant: researchers at Bar-Ilan University report in a new article published in the journal Applied Physics Letters - Photonics that they are now able to perform opto-mechanical sensing and analysis of media that lie outside protected fibers, which can be deployed in proper scenarios. Image: Profile of an ultrasonic wave in a coated fiber Credit Diamandi, London, Bashan and Zadok Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.