Mapping Interactions (IMAGE) Bar-Ilan University Caption Commercially-available fibers can also be protected by a jacket made of polyimide. The specific material was originally proposed for protecting the fiber at high temperatures. However, recent studies 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: Mapping of opto-mechanical interactions in a 1.6 km-long coated fiber kept in water. A section that is immersed in ethanol instead stands out (region of higher peak) Credit Diamandi, London, Bashan, 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.