TY - JOUR AU - J. Shacklette AU - Steven Cundiff BT - Physical Review B DA - 7/2002 DO - 10.1103/PhysRevB.66.045309 PY - 2002 T2 - Physical Review B TI - Role of excitation-induced shift in the coherent optical response of semiconductors VL - 66 SN - 0163-1829 ER -