Felix Mann

Abstract Low-noise quantum frequency conversion in periodically poled nonlinear crystals has proved challenging when the pump wavelength is shorter than the target wavelength. This is—at least in large part—a consequence of the parasitic spontaneous parametric downconversion of pump photons, whose efficiency is increased by fabrication errors in the periodic poling.

Welcome back to our series on the libraries of great men. When you picture Bruce Lee, what do you see? Probably an explosive series of kicks, punches, and kung-fu moves that could take out an entire gang of bad guys. What you likely don’t picture is a man quietly reading a philosophy book while a household is in chaos around him — kids yelling and playing, doors slamming, adults conversing. And yet that version of Bruce Lee is just as true as the dynamic, high-energy version.

Welcome back to our series on the libraries of great men. When you picture Bruce Lee, what do you see? Probably an explosive series of kicks, punches, and kung-fu moves that could take out an entire gang of bad guys. What you likely don’t picture is a man quietly reading a philosophy book while a household is in chaos around him — kids yelling and playing, doors slamming, adults conversing. And yet that version of Bruce Lee is just as true as the dynamic, high-energy version.