Abstract
We report on generation and detection of intense pulsed radiation with frequency tunability in the infrared and far-infrared spectral regions. Infrared radiation is generated with a transversally electrically excited high pressure CO2 laser. A laser pulse of a total duration of about 300 ns consisted, due to self mode locking, of a series of single pulses, some with pulse durations of less than 450 ps and peak powers larger than 20 MW. Using these pulses for optical pumping of a Raman D2O laser, trains of short far-infrared pulses with durations less than 400 ps were obtained. For detection a new ultrafast superconducting detector was used.
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Lang, P.T., Knott, W.J., Leipold, I. et al. Generation and detection of tunable ultrashort infrared and far-infrared radiation pulses of high intensity. Int J Infrared Milli Waves 12, 1135–1142 (1991). https://doi.org/10.1007/BF01008555
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DOI: https://doi.org/10.1007/BF01008555