Development of backward-wave oscillators for terahertz applications

Author(s):  
R. Lawrence Ives ◽  
Carol Kory ◽  
Michael Read ◽  
Jeff Neilson ◽  
Malcolm Caplan ◽  
...  
2004 ◽  
Author(s):  
Purobi Phillips ◽  
R. Lawrence Ives ◽  
Carol Kory ◽  
Michael Read ◽  
Jeff Neilson ◽  
...  

2001 ◽  
Vol 56 (3-4) ◽  
pp. 329-332 ◽  
Author(s):  
G. Klapper ◽  
F. Lewen ◽  
R. Gendriesch ◽  
S. P. Belov ◽  
G. Winnewisser

Abstract The five lowest rotational transitions of 12C180 (J =2 ← 1 to J = 6 ← 5) have been measured by saturation dip spectroscopy with an experimental accuracy of 1 to 1.5 kHz, employing phase-stabilized backward-wave oscillators. The five J rotational transitions cover the frequency range between 219 and 658 GHz. In addition, we have measured in the Doppler limited mode the rotational transitions J = 1 ← 0, J = 7 ← 6 and J = 8 ← 7. The accuracy achieved for the individual frequencies ranges between 5 and 20 kHz. Moreover the three rotational transitions J = 16 ← 15 to J = 18 ← 17 in the frequency region 1.7-2.0 THz were measured with an accuracy of 15 to 30 kHz by using the Cologne side­ band spectrometer for terahertz applications COSSTA.


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