Abstract
A strong resonant optical nonlinearity due to the conduction electron spins has been observed when the frequency (~100 cm−1) of far-infrared (FIR), generated by difference frequency mixing of two orthogonally polarized CO2 laser beams is tuned to the spin-resonance frequency in InSb. This effect allows us to take full advantage of the availability of the tunable radiation from the spin-flip Raman laser (SFR) in the generation of tunable FIR from 90 cm−1 to 110 cm−1. A successful attempt to solve the problem of “jump tuning” of FIR due to the presence of longitudinal cavity modes of SFR laser by replacing it with a nonresonant superradiant spin-flip Raman laser (NRSSFR) is also discussed in this paper.
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© 1974 Plenum Press, New York
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Nguyen, V.T., Bridges, T.J. (1974). Tunable Far-Infrared Generation by Difference-Frequency Mixing in Indium Antimonide. In: Brewer, R.G., Mooradian, A. (eds) Laser Spectroscopy. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4517-6_36
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DOI: https://doi.org/10.1007/978-1-4613-4517-6_36
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