Split Magnet and Optics Program Jack Toth Scott Bole Scott Gundlach Jim O’Reilly Magnet Science and Technology Steve McGill Dmitry Smirnov DC Fields FTIR Scientist

Wonderfully Complex Magnet “Wheel” Split Florida-Helix Technology

Speakers Steve McGill Janice Musfeldt Junichiro Kono Steven Cundiff Gregory Scholes Aron Pinczuk Girsh Blumberg Kresimir Rupnik Matt Sfeir Dmitry Smirnov Speakers Steve McGill Janice Musfeldt Junichiro Kono Steven Cundiff Gregory Scholes Aron Pinczuk Girsh Blumberg Kresimir Rupnik Matt Sfeir Dmitry Smirnov

New Experimental Capabilities Raman Spectroscopy o Doing with fibers, but limited in sensitivity and geometries o Split Helix gives large angles o Carbon and semiconductor based nanostructures (graphene, quantum wells,…), phase transitions, HTS, quantum spin systems… THz-Time Domain Spectroscopy o generate low power broadband short pulses o uses FFT to recover both amplitude and phase information from interaction with sample o ac conductivity of superconductors in high fields, cyclotron resonances… Optical 2D Fourier Transform Spectroscopy and 4-wave Mixing o sensitive interferometery that combines 3 or more beams of light o cutting edge techniques, impossible without the Split-Helix o probes excitonic systems and their dynamics Improving existing methods: o Photoluminescence o Infrared magneto optics (FTIR…) o EPR/ESR Split magnet enables the ability to do “micro- spectroscopy”, imaging, etc. with many techniques X-ray opportunities FEL opportunities

Shopping List U-shaped non-magnetic optical table around magnet (150 k$) Optical windows, custom vacuum hardware… (200 k$) Dewar/cryosystem mounted to optical table (350 k$) Vibration isolation between dewar and magnet (100 k$) Narrow band Krypton laser for Raman Spectroscopy (100 k$) Time correlated photon counter (100 k$) Micropositioners & rotators, high B/low T (400 k$) Optics, detectors, etc (400 k$) New Bruker FTIR spectrometer with microscope (250 k$) New, small footprint one-box amplifier ultrafast laser system (1 M$) Custom made ultra low frequency Raman Scattering spectrometer (including custom microscope) (1 M$)

Personnel Technician – being hired 3 Postdocs – optics, FTIR, micro-Raman/optics Grad Students Senior Faculty Member?

Installation into Cell 5 Open wall to Optics Cell (3), extend ceiling, 100 k$