Ja. Yang et al., APPLICATION OF POLARIZATION RESOLVED PHOTOLUMINESCENCE TO THE STUDY OF QUANTUM-WELL INTERMIXING IN INGAASP SYSTEMS, Semiconductor science and technology, 10(4), 1995, pp. 483-488
A room-temperature spatially resolved and polarization resolved photol
uminescence (PL) technique is demonstrated to be a useful tool for stu
dying the intermixing process in InGaAsP multiple-quantum-well systems
disordered by focused ion beam implantation. This technique produces
maps of the spectral uniformity, degree of polarization, and PL yield
at room temperature. Information on spectral shift (i.e., bandgap chan
ge) and anisotropy in the implanted region can be obtained from these
maps. A significant enhancement in pi yield (up to 40%) for Si+ implan
ted line patterns was observed.