Time travel is not just theoretical, it’s proven. But that doesn’t mean we are anywhere close to a functioning time machine just yet. Professor Ron Mallett has been fascinated with the idea of time travel since he was a little boy. A year after his father passed away, he discovered a Classics Illustrated edition of H.G. Wells’ “The Time Machine.” That comic sparked the imagination of 10-year-old Mallett, convincing him to pursue a career in science and to learn more about controlling the clocks. Decades later, he believes he has cracked the code on time travel. It just requires circular lasers and some cosmic intervention. On this episode, Mallett shares with us the science behind his theories, what it will take to traverse the past and present, and which Hollywood movies actually got time travel right. "All Things Photonics"® is produced by Photonics Media and airs biweekly, on Tuesdays. Sponsored by: Hamamatsu – www.Hamamatsu.com LightPath Technologies Inc. – www.LightPath.com

Free space optical communication could offer high speed connectivity without the need of optical fibers. That's where groups like Akron come in. They are actively working to develop the next generation of light waves for free space optical communications. Using short coherence length optical sources, including ultrashort pulsed lasers, they believe they have found a way to overcome the hurdles holding these systems back from hitting the mainstream. On this episode, we are joined by Tom Chaffee, founder and CEO of Attochron, Jim Olson, senior VP of sales and marketing, and Wayne H. Knox, professor of Optics at the University of Rochester and consultant at Akron. "All Things Photonics"® is produced by Photonics Media and airs biweekly, on Tuesdays. Sponsored by: Hamamatsu – www.Hamamatsu.com LightPath Technologies Inc. – www.LightPath.com

No one can be sure how this current trade war between the U.S. and China will end. But we’re feeling its impacts every day. While no person or business can escape the effects of this volatile market, semiconductor manufacturers have a unique challenge to deal with. Not only must they handle rising costs and taxes, but they also must figure out how to advance forward facing export restrictions from China. Rare earths vital in the production of semiconductors come primarily from China, but new controls will limit American companies’ access to those materials. In this Spotlight, we talk with TECHCET CEO and Founder, Lita Shon-Roy, to learn more about the origins of this trade war, how it impacts the semiconductor industry, and what it will take to bring this chapter of turmoil to a close. Spotlight from "All Things Photonics"® is a special series of intimate sit-down conversations with preeminent figures in our industry. Sponsored by: Hamamatsu – www.Hamamatsu.com LightPath Technologies Inc. – www.LightPath.com