Abstract
We report the frequency measurements of 18 optically pumped far-infrared(FIR) laser lines generated from and We use the heterodyne technique of mixing FIR laser radiations and microwave radiation on a metal-insulator-metal point-contact tunnel diode to determine the FIR laser frequencies. Two FIR laser systems, consisting of waveguide pump lasers and Fabry–Perot FIR laser cavities, were used as optical sources.
© 1997 Optical Society of America
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