1. Microwave Source Diode detector Waveguide

2. Microwave Source Diode detector Waveguide

3. Some photons absorbed if resonant HCCCCCN

4. Microwave Source Diode detector Waveguide HCCCCCN

5. http://www.ged.chem.ed.ac.uk/structure/rotspec.html

6. http://ipc.iisc.ernet.in/~arunan/lab1.htm

10. http://www.decadecounter.com/vta/storearticleview.php?item=19

11. Varian reflex klystron: Electrons emitted from the heated cathode travel through the cavity grids toward the repeller plate and returned back through the grids. Self-sustaining oscillations develop, the frequency can be changed by adjusting the repeller voltage or changing the physical dimensions by squeezing the plates together http://www.cybermike.net/reference/liec_book/Semi/SEMI_13.html

12. Microwave sweeper Source BWO Microwave diode detector Waveguide gas sample cell Microwave absorbed by rotational transitions when resonant HCCCCCN