Table 1. Calculated Frequencies of Raman-Active Phonon Modes for a GaAs/GaP SL Structure with 3 Different Periods^a.

frequencies for L = 3.83 nm (cm–1)	frequencies for L = 5.12 nm (cm–1)	frequencies for L = 6.39 nm (cm–1)
247.53	245.55	243.87
259.88	254.87	250.83
272.02	264.73	259.57
279.57	273.24	267.39
285.13	281.13	274.60
366.94	282.45	279.78
368.35	288.12	283.64
371.79	367.25	285.71
379.98	368.09	290.04
	370.23	367.33
	372.06	367.86
	375.85	369.49
	382.31	370.64
		373.38
		378.84

^aPhonon modes with a Raman intensity more than 100 times smaller than that of the most intense mode were considered nondetectable.