Narrow linewidth VECSEL for photoionization of Ba for trapped ion computing
Kostiantyn Nechay, Luukas Kuusela, Andreas Schramm, Soile Talmila, Pekko Sipilä, Kalle Palomäki, Petteri Uusimaa · 2024
Trapped-ion-based quantum computing is a forerunning approach which ultimately relies on single-frequency lasers. We present narrow linewidth intracavity frequency doubled semiconductor laser platform, here emitting around 553 nm for the efficient Ba atom two-step photoionization.