TY - GEN AU - Wang,Q N AU - Nolte,D D AU - Melloch,M R TI - Spatial-harmonic gratings at high modulation depths in photorefractive quantum wells SN - 0146-9592 PY - 2012///1002 N1 - Publication Type: Journal Article UR - https://doi.org/10.1364/ol.16.001944 ER -