Tunable spin-flip Raman scattering in mercury cadmium telluride

Abstract
Tunable spin‐flip Raman scattering has been observed in Hg0.766Cd0.234Te using several CO2 laser lines near 9.5 μm to pump the crystal. The Stokes component with a maximum power output of about 1 W was tunable between 15 and 68 cm−1 from the pump frequency with magnetic fields between 4 and 21 kG. This corresponds to an average tuning rate of 3.4 cm−1/kG. The extrapolated zero‐field g factor was measured to be |79|±3 yielding a conduction band‐edge effective mass ratio of 0.0101±0.0005. Several factors suggest that the tunable radiation was stimulated.