CONTENTS FEATURES 2 Chalcogenide Materials: Revolutionizing Optical Performance in Response to Germanium Export Constraints 6 Comparing Sensitivity of Thermal Imaging Cameras Modules APPLICATION BRIEFS 9 Laser-based System Achieves Noncontact Medical Ultrasound Imaging 11 This MEMS Scanning Mirror Could Solve LiDAR's Expensive Autonomous Vehicle Challenges TECH BRIEFS 14 Multicolored Light-Emitting Array on a Single Chip 15 New Blue Light Technique Could Enable Advances in Understanding Nanoscale Technologies 16 Researchers Create World's Smallest LED And Holographic Microscope 18 Researchers Demonstrate Noise-Free Communication with Structured Light DEPARTMENTS 19 New Products 21 Directory 26 Profiles ON THE COVER The field of optics has long relied on traditional materials like germanium for a range of applications, from infrared imaging to spectroscopy. However, recent challenges stemming from germanium export search for alternative materials. To learn about one germanium alternative that has emerged, chalcogenide, read the feature article on page 2. (Image:Vink Fan/Shutterstock) restrictions in China have sparked a Photonics & Imaging Technology, November 2023 1http://info.hotims.com/84485-702