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Jordan Grace Physics Mentor: Hunter Banks Faculty Advisor: Prof. - - PowerPoint PPT Presentation

Dec 29, 2023 267 likes •517 views

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

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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

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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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SLIDE 10

1.49 1.50 1.51 1.52 1.53 1.54 10

  • 1

10 10

1

10

2

10

3

10

4

10

5

10

6

1.514 1.515 50 100 150 200 250 Signal (counts) Energy (eV) Bulk GaAs Excitation Laser Signal (counts) 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 Gap Near-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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SLIDE 23