CONTENTS FEATURES 2 A Primer on Solid-State Lasers 5 500°C-Rated Optical Fiber for High Temperature Applications APPLICATION BRIEFS 14 Visualizing Value at the Speed of Light 17 Time of Flight vs. FMCW LiDAR Systems TECH BRIEFS 21 NIST Improves the Ability of Optical Microscopes to Measure the Volume of Microdroplets 22 New Device Modulates Visible Light with the Smallest Footprint and Lowest Power Consumption 23 Using Magnets to Toggle Nanolasers Leads to Better Photonics 24 Artificial Intelligence Magnifies the Utility of Electron Microscopes 25 An Innovative Imaging Technique for Dynamic Optical Nanothermometry ON THE COVER Once harvested, natural food products need to be under the watchful eye of precise imaging sensors to assure wholesomeness and quality. Hyperspectral-imaging sensors can distinguish spectral features that elude both the human eye and conventional color imaging, detecting potentially harmful foreign matter and providing a means to sort and grade material quickly, accurately, and efficiently. To learn more about hyperspectral imaging, read the applications brief on page 14. (Image courtesy of Headwall Photonics) SPECIAL SECTION 8 Technology Leaders in Cameras & Imaging Systems 8 An Alternative Approach to 3D Reconstruction 10 How Indium Gallium Arsenide (InGaAs) Improves SWIR Sensing DEPARTMENTS 26 New Products Photonics & Imaging Technology, March 2022 Free Info at http://info.hotims.com/82319-702 1 PIT Contents 0322_1.indd 1 Cov ToC 2/15/22 3:50 PMhttp://info.hotims.com/82319-702 http://info.hotims.com/82319-780