High-Order Sideband Generation Jordan Grace Physics Mentor: Hunter Banks Faculty Advisor: Prof. Mark Sherwin Institute for Terahertz Science and Technology Funded by the National Science Foundation

Terahertz Radiation

Free Electron Laser Low voltage Medium voltage High voltage

FEL e

Describing a Wave Frequency Energy λ = c/f f = 1/T k = 2 π / λ E = hf v = λ f ω = 2 π f Wavelength λ = c/f

Physics Frequency Space

Frequency 1 Hz = 1 wave cycle per second 1 THz = 1 trillion wave cycles per second

e +- GaAs Exciton

Physics Energy E=hf frequency Planck Constant

E = hf Sample Data NIR Laser

Physics Wavelength Space Wavelength (meters)

Wavelength λ = c/f 300 GHz 30 THz 1 mm 10 μm 370 THz 810 nm THz GapNear-Infrared Laser Speed of Light Frequency

Camera Setup Diffraction Grating To LabVIEW Camera HSG Signal

LabVIEW

Front Panel

Acknowledgements The Sherwin Group Mark Sherwin – Principle Investigator Hunter Banks - Mentor Dave Enyeart – Master of the FEL

References THz Gap 1: F1.html THz Gap 2: THz Gap 3: CMB: FEL: EM Spectrum : 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 ghfreq.html

Thanks!