Concept: Photorefractive and Nonlinear Optics
Mode-locked Yb:Ca3TaGa3Si2O14 laser reaches 50 fs pulses
A new crystal generates ultrashort laser pulses shorter than 100 femtoseconds

Integrated photonic system senses spectrum from microwave to sub-terahertz
Fast, compact spectrum sensing across microwave to terahertz frequencies on a single chip




