Sg. Sridhara et al., Penetration depths in the ultraviolet for 4H, 6H and 3C silicon carbide atseven common laser pumping wavelengths, MAT SCI E B, 61-2, 1999, pp. 229-233
We report the values of the absorption coefficient of 4H, 6H and 3C SiC at
room temperature, in the range 3900-2968 Angstrom. By using the known shift
in the bandgap with temperature, we also present estimates of the absorpti
on coefficient of 4H, 6H and 3C SIC at 2 K. A table is given for penetratio
n depths at 300 and 2 K for seven common lasers used to pump SIC in this re
gion. (C) 1999 Elsevier Science S.A. All rights reserved.