Bob Hess, one of the world’s leading collectors of lasers, laser accessories, and holograms, takes us through his exhibit, "Vintage Lasers & Holograms," on now in Tempe, Ariz. Hess is a career holographer and photonics technician, and his collection features more than 500 lasers and upward of 600 holograms. Also, a check-in with the University of Southampton's Pearl John to discuss the artform of holography and its ties to photonics outreach and education.