Prof. DeRoo and graduate student Dustin Swarm recently presented at the 2019 SPIE Optics & Photonics conference. Dustin presented work he and Prof. DeRoo have done on performance predictions for the Arcus X-ray Spectrometer mission concept, while Prof. DeRoo gave a presentation on the development of curved diffractive X-ray optics (CDXO). You can watch Prof. DeRoo's presentation here.

They also had some time to enjoy sunny San Diego's sights, and got their picture taken with a giant inflatable Spiderman left over from the annual Comic-Con meeting. 

Big Spiderman Blow-up at SPIE