jordan grace - ucsbinset-csep.cnsi.ucsb.edu/.../files/jordan-grace... · 1.49 1.50 1.51 1.52 1.53...
TRANSCRIPT
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High-Order Sideband Generation
Jordan GracePhysics
Mentor: Hunter Banks
Faculty Advisor: Prof. Mark Sherwin
Institute for Terahertz Science and Technology
Funded by the National Science Foundation
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Terahertz Radiation
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Free Electron Laser
Low voltage
Medium voltage
High voltage
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FEL
e
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Describing a Wave
Frequency
Energy
f = 1/T E = hf
Wavelength
λ = c/f
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Physics 101 - Frequency
Space
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Frequency
1 Hz = 1 wave cycle per second
1 THz = 1 trillion wave cycles per second
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e+-GaAs
Exciton
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Physics 102 - Energy
E=hf
frequency
Planck Constant
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1.49 1.50 1.51 1.52 1.53 1.5410
-1
100
101
102
103
104
105
106
1.514 1.515
0
50
100
150
200
250
Sig
na
l (c
ou
nts
)
Energy (eV)
Bulk GaAsExcitation Laser
Sig
na
l (c
ou
nts
)
E = hf
Sample Data
NIR Laser
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Physics 103 - Wavelength
Space
Wavelength (meters)
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Wavelength
λ = c/f
300 GHz 30 THz
1 mm 10 μm
370 THz
810 nm
THz GapNear-Infrared Laser
Speed of Light
Frequency
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Camera Setup
Diffraction Grating
To LabVIEW
Camera
HSG Signal
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LabVIEW
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LabVIEW
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Front Panel
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e+-GaAs
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Camera Setup
Diffraction Grating
To LabVIEW
Camera
HSG Signal
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Front Panel
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Acknowledgements
The Sherwin Group
Mark Sherwin – Principle Investigator
Hunter Banks - Mentor
Dave Enyeart – Master of the FEL
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References
• THz Gap 1:http://www.nature.com/nature/journal/v417/n6885/fig_tab/417132b_F1.html
• THz Gap 2: http://circe.lbl.gov/THzGap.html
• THz Gap 3: http://www.teraphysics.com/understanding-thz.html
• CMB: http://invisibles.eu/index.php?q=attached_image/4288&fid=3918
• FEL: http://sherwingroup.itst.ucsb.edu/facilities.html
• EM Spectrum: http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html
• Body Scanner: Property of the Transportation Security Administration
• Marvin the Martian is property of Warner Brothers
• Reese Witherspoon’s sidebangs: Andreas Rentz / Getty Images
Images
Information
• http://www.ece.ucsb.edu/Faculty/rodwell/research_group/hi
ghfreq.html
• http://www.teraphysics.com/understanding-thz
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Thanks!
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