Split Magnet and Optics Program

JackToth

ScottBole

ScottGundlach

JimO’Reilly

Magnet Science and Technology

SteveMcGill

DmitrySmirnov

DC Fields

FTIRScientist

Wonderfully Complex Magnet

“Wheel”

Split Florida-Helix Technology

SpeakersSteve McGill

Janice Musfeldt Junichiro KonoSteven Cundiff

Gregory ScholesAron Pinczuk

Girsh BlumbergKresimir Rupnik

Matt SfeirDmitry Smirnov

New Experimental Capabilities• Raman Spectroscopy

o Doing with fibers, but limited in sensitivity and geometrieso Split Helix gives large angleso Carbon and semiconductor based nanostructures (graphene, quantum wells,…), phase

transitions, HTS, quantum spin systems…• THz-Time Domain Spectroscopy

o generate low power broadband short pulseso uses FFT to recover both amplitude and phase information from interaction with sampleo ac conductivity of superconductors in high fields, cyclotron resonances…

• Optical 2D Fourier Transform Spectroscopy and 4-wave Mixingo sensitive interferometery that combines 3 or more beams of lighto cutting edge techniques, impossible without the Split-Helixo probes excitonic systems and their dynamics

• Improving existing methods:o Photoluminescenceo 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 5Open wall to Optics Cell (3), extend ceiling, 100 k$