RAMBO-II: Ultrabroadband Optical Spectroscopy of Materials in Magnetic Fields Up to 50 T
ORAL
Abstract
Study of a material’s optical properties in high magnetic fields is often complicated by the size, construction, and availability of magnets with excellent optical access. The chief aim of RAMBO – the Rice Advanced Magnet with Broadband Optics – is to enable a wide variety of ultrafast and nonlinear spectroscopy measurements not possible or prohibitively difficult in large DC or pulsed magnet systems by constructing multiple compact, mini-coil-based table-top pulsed magnets with excellent optical access. RAMBO-I has already been used for terahertz time-domain spectroscopy
in pulsed magnetic fields of up to 30 Tesla, and RAMBO-II will expand these capabilities by not only increasing the maximum field strength but also widening the spectral range into the midinfrared, near-infrared (NIR), visible (VIS), and extreme ultraviolet. The centerpieces of the RAMBO-II expansion are a series of 50-T magnets, which will be the strongest known table-top, repetitive pulsed magnets applied to similar experiments. This presentation features the completed NIR/VIS magnet system along with its experimental capabilities and field-dependent photoluminescence of the NV- center in diamond.
F. Tay, A. Baydin, F. Katsutani, and J. Kono, “Magneto-optical Spectroscopy with RAMBO: A Table-Top 30 T Magnet,” Journal of the Physical Society of Japan 91, 101006 (2022)
A. Baydin, T. Makihara, N. Marquez Peraca, and J. Kono, “Time-Domain Terahertz Spectroscopy in High Magnetic Fields,” Frontiers of Optoelectronics 14, 110 (2021)
in pulsed magnetic fields of up to 30 Tesla, and RAMBO-II will expand these capabilities by not only increasing the maximum field strength but also widening the spectral range into the midinfrared, near-infrared (NIR), visible (VIS), and extreme ultraviolet. The centerpieces of the RAMBO-II expansion are a series of 50-T magnets, which will be the strongest known table-top, repetitive pulsed magnets applied to similar experiments. This presentation features the completed NIR/VIS magnet system along with its experimental capabilities and field-dependent photoluminescence of the NV- center in diamond.
F. Tay, A. Baydin, F. Katsutani, and J. Kono, “Magneto-optical Spectroscopy with RAMBO: A Table-Top 30 T Magnet,” Journal of the Physical Society of Japan 91, 101006 (2022)
A. Baydin, T. Makihara, N. Marquez Peraca, and J. Kono, “Time-Domain Terahertz Spectroscopy in High Magnetic Fields,” Frontiers of Optoelectronics 14, 110 (2021)
*Support for this research was provided by the National Science Foundation through Major Research Instrumentation grant No. 2019004.This work was done in part using resources of the Shared Equipment Authority at Rice University.
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Presenters
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William A Smith
- Rice University