A table-top, repetitive pulsed magnet for nonlinear and ultrafast spectroscopy in high magnetic fields up to 30 T

摘要: We have developed a mini-coil pulsed magnet system with direct optical access, ideally suited for nonlinear and ultrafast spectroscopy studies of materials in high magnetic fields up to 30 T. The apparatus consists small coil liquid nitrogen cryostat coupled helium flow provide sample temperatures down below 10 K. Direct access the is achieved use easily interchangeable windows separated by short distance ∼135 mm on either side cryostats numerical apertures 0.20 0.03 measurements employing Faraday geometry. As demonstration, we performed time-resolved time-integrated photoluminescence as well transmission InGaAs quantum wells.