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Summary: Development and Applications of
Broadly Tunable Continuous-Wave
THz "n-i-pn-i-p" Superlattice
Photomixer Sources
Sascha Preu
Outline
· The THz frequency range
· PART I: The n-i-pn-i-p superlattice photomixing concept
Photomixer optimization
Results
· PART II:Terahertz experiments:
THz optics
Interference experiments
Water vapor spectroscopy
Whispering gallery mode resonators
· Summary
Many molecules show narrow resonances in the THz range:
"Fingerprinting"
THz power of portable, continuous-
wave THz systems*
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