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Terahertz Spectroscopy Comes of Age Mark Sherwin
 

Summary: Terahertz Spectroscopy Comes of Age
Mark Sherwin
Director, Ins Science and Technology
October 7, 2010 ITST Seminar 2
Operated by the Southeastern Universities Research Association for the U.S. Department of Energy
Thomas Jefferson National Accelerator Facility
THz Brief History
After Nichols left Berlin, Rubens continued the work, and in 1900 he isolated
wavelengths of 6THz (50 microns) and made careful measurements which he gave to
Max Planck who derived the Radiation Law. Planck wrote in 1922 "Without the
intervention of Rubens the formulation of the radiation law, and consequently the
formulation of quantum theory would have taken place in a totally different
manner, and perhaps even not at all in Germany".
From talk by G. Williams
Terahertz (Far-Infrared) spectroscopy ca 1910
October 7, 2010 ITST Seminar 3
"Welsbach mantle"*
*rare-earth oxide in gas flame
H. Rubens--Berlin

  

Source: Ahlers, Guenter - Department of Physics, University of California at Santa Barbara

 

Collections: Physics