TY - JOUR
T1 - Polarization insensitivity in interdiffused, strained InGaAs/InP quantum wells
AU - Micallef, Joseph
AU - Borg, James L.
AU - SHIU, Wai Chee
N1 - Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 1997
Y1 - 1997
N2 - Theoretical results are presented showing how quantum well disordering affects the TE and TM absorption coefficient spectra of In0.53Ga0.47As/InP single quantum wells. An error function distribution is used to model the constituent atom composition after interdiffusion. Different interdiffusion rates on the group V and group III sublattices are considered resulting in a strained structure. With a suitable interdiffusion process the heavy hole and light hole ground state, excitonic transition energies merge and the absorption coefficient spectra near the fundamental absorption edge become polarization insensitive. The results also show that this polarization insensitivity can persist with the application of an electric field, which is of considerable interest in waveguide modulators.
AB - Theoretical results are presented showing how quantum well disordering affects the TE and TM absorption coefficient spectra of In0.53Ga0.47As/InP single quantum wells. An error function distribution is used to model the constituent atom composition after interdiffusion. Different interdiffusion rates on the group V and group III sublattices are considered resulting in a strained structure. With a suitable interdiffusion process the heavy hole and light hole ground state, excitonic transition energies merge and the absorption coefficient spectra near the fundamental absorption edge become polarization insensitive. The results also show that this polarization insensitivity can persist with the application of an electric field, which is of considerable interest in waveguide modulators.
UR - http://www.scopus.com/inward/record.url?scp=0030644414&partnerID=8YFLogxK
U2 - 10.1557/PROC-450-371
DO - 10.1557/PROC-450-371
M3 - Journal article
AN - SCOPUS:0030644414
SN - 0272-9172
VL - 450
SP - 371
EP - 376
JO - Materials Research Society Symposium Proceedings
JF - Materials Research Society Symposium Proceedings
T2 - Proceedings of the 1996 MRS Fall Meeting
Y2 - 4 December 1996 through 5 December 1996
ER -