Publications

Broadband ultrafast terahertz spectroscopy in the 25 T Split Florida-Helix

Curtis, Jeremy A.; Burch, Ashlyn D.; Barman, Biplob; Linn, A.G.; McClintock, Luke M.; O'Beirne, Aidan L.; Stiles, Matthew J.; Reno, J.L.; McGill, Stephen A.; Karaiskaj, Denis; Hilton, David J.

We describe the development of a broadband (0.3-10 THz) optical pump-terahertz probe spectrometer with an unprecedented combination of temporal resolution (≤200 fs) operating in external magnetic fields as high as 25 T using the new Split Florida-Helix magnet system. Using this new instrument, we measure the transient dynamics in a gallium arsenide four-quantum well sample after photoexcitation at 800 nm.